baber/WOPTO huggingface dataset:
Patent GB-696958-A (GB)
Title: Improvements in parachute apparatus for retarding aircraft, particularly before landing
IPC: H03K3/313
Filed: 1950-10-03
Abstract: 696,958. Landing parachutes for aircraft. QUILTER, J. R. C. Oct. 3, 1951. [Oct. 3, 1950] No. 24123/50. Class 4. Parachute apparatus for retarding aircraft comprises a parachute stowed in a container, together with its rigging lines, means for maintaining the container normally closed, and an intermediate cable secured at one end to the rear of the aircraft and connected at its other end to the rigging lines of the parachute, this cable being detachably mounted upon the container and serving when the latter is thrown from the aircraft, to open the container for extraction of the parachute by continued pull of the cable upon the rigging lines. The container comprises a rectangular compartment 11 housing a main parachute and having folded, overlapping sides and ends, extensions of the ends being formed with loops 13 that pass through apertures in the overlapping side portions. Rigging lines 16 attached to the parachute pass outside the compartment 11 and are looped in the loops 13 and then attached bv a buckle 20 to an intermediate line 18 secured in pockets 21 attached to a flap 17. A further flap 22 is loosely folded against the compartment 11  to house a pilot parachute 24 and the pack is completed by wrapping the flap 17 around the compartment 11 and the pilot parachute and securing an eyelet fastening 25 by the end of a cord 28 secured to the cord 18 by a shackle I!) fastened to the rear end of the aircraft structure. When the closed container shown in Fig. 3 is thrown manually or by remotely controlled mechanism from the aircraft the fastening 25 is released and the flaps 17 and 22 open, the parachute 24 acting as a drogue to release the cord 18 from the pockets 21 and the rigging lines 16 from the loops 13 thus permitting the compartment 11 to open and release the main braking parachute. Specifications 497,448. 531,884 and 564,794 are referred to.
Patent GB-224055-A (GB)
Title: An improved ladder or steps for use as a staircase
IPC: E04F11/04
Filed: 1923-09-28
Abstract: 224,055. Stowell, H. S. Sept. 28, 1923. Ladders.-A ladder or stairway for use with attics or lofts in buildings, and arranged so that it may occupy either an inclined or vertical position, has rollers e<1> mounted on a cross shaft at the upper end of the ladder engaging vertical guide grooves in a support f, and rollers d on a cross shaft at the bottom. It is partly supported by a counter-balance weight attached to a cord passing over a pulley and has supports g at its upper end to rest on the floor h. The sides of the ladder are provided with rubbing strips a<1> which contact with similar strips i<2> in the recess i, which contains the ladders when in vertical position; this recess is provided' with doors, and may be used for storing other articles.
Patent GB-317017-A (GB)
IPC: C01B31/08
Filed: 1929-08-08
Abstract: 317,017. Meyer, F. W. Aug. 8, 1928, [Convention, date]. Carbon.-Used decolorizing carbon is reactivated by treating it, preferably in a moist condition, with steam below glowing temperature in a closed vessel. A temperature of 180-300‹ C. and a pressure of 20 atmospheres may be employed. The carbon may be added to the vessel dry and then moistened by introducing saturated steam. The vessel may be externally heated by steam or combustion gases. The vessel may also be heated directly by combustion gases or other suitable heating means, instead of by steam. The carbon may be pretreated with acid or lye, the acid being removed by washing. The reactivated carbon may be washed with water in a filter to remove the substances rendered soluble by the process. The carbon may be converted into a sludge and driven from the vessel by the pressure therein through a lower outlet and a conduit to the filter.
Patent GB-1127845-A (GB)
Title: Apparatus for turning articles
IPC: B65G47/248
Filed: 1967-05-25
Abstract: 1,127,845. Turning articles. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. 25 May, 1967 [4 June, 1966; 20 Aug., 1966], No. 24286/67. Heading B8S. Apparatus for turning articles, especially crates 3 comprises, as shown in Fig. 1, a pipe 1 with two helically coiled guide ledges 2. Pressure of succeeding crates (not shown) forces the crate 3 through the pipe 1, the ledges 2 causing the crate 3 to rotate 180 degrees about the longitudinal direction of the pipe 1. As shown in Fig. 3 (plan view) crates 3 are turned through two successive 90 degree turns by guide ledges 2, 2<SP>1</SP> helically arranged -so as to describe a sector of approximately 90 degrees in the periphery of the pipe. The pitch of the ledges 2, 2<SP>1</SP> may be adjusted using slots 10.
Patent GB-772926-A (GB)
Title: Anti-flagging device for work-jogging attachments for sewing machines
IPC: D05B21/00
Filed: 1955-08-24
Abstract: 772,926. Sewing machine attachments. SINGER MANUFACTURING CO. Aug. 24, 1955 [Sept. 13, 1954], No. 24334/55. Class 112. A work-jogging attachment for a sewing machine includes a cloth holding device to prevent " flagging consisting of a lever 40, Fig. 4, of the third order pivoted at 41 to the frame of the attachment and provided with a work-engaging foot 42 at the other end, the pivot and foot lying on a straight line intersecting the axis of the needle and perpendicular to the path of movement of the latter. The lateral arm 44 is spring loaded at 47 to hold the foot in contact with the work and is intermittently raised by a cam surface 49, Fig. 1, formed on a lever 31 secured to the needle-bar 34, and engaging the lug 46 on the arm 44. The buttonhole attachment shown consists of a frame comprising a base 12 with side walls 10 between which is secured a slotted block 14 which is secured to the presser bar 15. A feed plate 16, maintained in place by a keeper plate 17 is slidably pivoted to the base 12 and carries a pivoted work-feeding foot 18. Cam shafts 20, 21 journalled in the side walls 10 carry a zig-zag pattern cam 22 and a crossover pattern cam 24. The shafts are rotated step-by-step by the lever 31 which is freely journalled on shaft 20. The cam 22 jogs the feed plate through a follower lever 23 and the cam 24 actuates the follower lever 25 to shift the feed plate from one side to the other during the making of the buttonhole pattern. The lever 31 carries a pivoted pawl 35 engaging a ratchet wheel 36 fast on the shaft 20, and a lug 39 engaging a lever arm 38 operating a one-way clutch mechanism 37 associated with the shaft 21. The shaft 21 also carries a mutilated pinion engaged by a rack-plate 27 connected to an adjustment lever 28, pivoted to an extension 13 of one of the side walls of the attachment, and coupled by means of an adjustment pin 29 to a vertically slotted extension 30 of the feed plate 16. The rack plate serves to shift the feed plate lengthwise of the buttonhole.
Patent GB-532277-A (GB)
Title: Improvements in or connected with electric remote control systems
IPC: H02P1/04
Filed: 1939-08-24
Abstract: 532,277. Master control of A.C. motors. M. & C. SWITCHGEAR, Ltd., and RICHARDSON, F. B. Aug. 24, 1939, No. 24335. (Class 38 (iii)] A motor K driving a coal cutter or conveyer is controlled at the motor or at a remote switch A by control over the normal pilot conductor 9. The main contactor F is controlled by a relay 10, which although held close by the normal current in the pilot 9 will not close unless one or other resistances 8, 13 is momentarily shorted. A switch 16 in the shunt around resistance 13 can be locked open and the key removed by the operator so as to prevent the motor being started from the remote switch A.
Patent GB-1467096-A (GB)
Title: Method for producing array of semiconductor light-emissive  elements
IPC: H01L27/15
Filed: 1975-06-09
Abstract: 1467096 Light emitting arrays J S AKIMOV V P SUSHKOV and V I KURINNY 9 June 1975 24694/75 Heading H1K An array of light emitting elements is formed in a body comprising a P + type GaAs substrate 1, a P type Ga 1-x Al x As epitaxial layer 2 and an N type Ga 1-y Al y As epitaxial layer by ion implanting an acceptor dopant into selected areas of the N type layer through a photoresist mask, removing the photoresist mask and covering the entire surface of the upper layer with SiO 2 8, and then heating to cause the implanted acceptors to diffuse through the full thickness of the N type layer to form P type portions 10 separating residual N type zones 9 which define the light-emissive junctions with the underlying P type layer 2. The presence of the SiO 2  8 means that the diffusion can be carried out in an open furnace. In an embodiment the substrate 1 and layer 2 are both Zndoped, the N type layer is Te-doped, the two epitaxial layers are formed by liquid phase epitaxy and the ion implanted and redistributed dopant for portions 10 is Zn, Be or Cd. The two epitaxial layer compositions are defined by x=0À35; y=0À47-0À50. Specified Au/Ge, Au/Zn or Al electrodes may be employed.
Patent GB-956565-A (GB)
Title: Push button electric switch
IPC: H01H13/60
Filed: 1960-07-15
Abstract: 956,565. Press-button retraction switches; snap-action switches. ANSUL CHEMICAL CO. July 15, 1960[Dec. 14, 1959], No. 24702/60. Heading H2B. A press-button switch comprises fixed contacts 28 carried by a housing 22 and having recesses 26 for receiving a roller contact 30 mounted on a U-shaped carrier 34 rotatable about a pin 42 whose ends slide in slots 46 in the arms 35 of a member 36 pivoted about a fixed pin 38. The member 36 houses a compression spring 48 bearing on the base 44 of carrier 34, has stops 60 normally engaging the arms 58 of a torsion spring 56 on the pin 42, has cam. surfaces 54 engaging the ends of the roller axle 32 and carries pins 78 slidable in cam slots 76 formed in the arms 72 of a pushbutton 62, further slots 74 receiving the ends of the pin 38. When the button 62 is depressed against the spring 64 to pivot member 36 anti-clockwise, the roller 30 remains in contact with the left-hand recess 26 until lifted therefrom by the surfaces 54, during which time the carrier 34 rotates clockwise to increase the stress in springs 48, 56 by movement of the base 44, one edge of which engages a spring arm 58, Figs. 4 and 5 (not shown). When the roller 30 has left the recess 26 the carrier 34 is rotated anti-clockwise by the stressed springs 48, 56 to catch up with the member 36, further rotation of members 34, 36 enabling the roller 30 to engage the right-hand recess under the action of spring 48. Upon release, members 62, 72 are forced upwards by the spring 64 and the switch mechanism is restored to its original position by a reverse action to that described above. If desired, the spring 56 may be omitted. In a modification, Fig. 9, a notch 177 is formed in each cam slot 176 so that if the button 162 is released slowly after operation the pins 178 engage the notches 177 to lock the switch mechanism in the operated position, restoration being effected by pressing the button 162 and releasing it suddenly as in normal retractive operation. In another modification, Fig. 12 (not shown), the arms of the torsion spring extend into the coil of the compression spring through an aperture in the carrier base, the arms normally engaging the aperture edges and engaging respectively an edge and a side of the coil during switch operation. In a further modification, Figs. 13 and 14 (not shown), the button-biasing spring is omitted, restoration of the switch mechanism being effected by manually withdrawing the button. Specifications 837,432, 837,434, 837,435 and 956,566 are referred to.
Patent GB-339664-A (GB)
Title: Improvements in wireless direction finding systems
IPC: G01S1/02
Filed: 1929-08-13
Abstract: 339,664. Brown, Sir A. W. Aug. 13, 1929. Directive signalling. - Relates to means for determining the direction of an incoming wave by combining the rectified pick-up energy from a constantly-rotating frame aerial with an independently-generated reference current having the same frequency as that of the rotating aerial. By measuring the phase-difference between the two currents by means of a synchroscope, powerfactor-meter, oscillograph, or similar instrument, a direct and positive indication of the required bearing is obtained. According to the present invention, the search-coil 1 of a relatively-fixed directional aerial system is rotated at say 25 revolutions per second from a shaft 5 driven by a wind screw or any other available source of power. The signal energy is rectified at 9, and, after amplification by valves 10, 11, is fed to the phase indicating device 12. The aerial shaft 2 also drives the rotor of a small single or polyphase alternating generator 16 capable of generating current of variable frequency, according to its speed, without substantial change in wave form. The generator is fitted with means 18, 19 for rotating the stator so as to secure phaseadjustment. The output from the generator is applied to the lower terminals of the device 12, which thereupon indicates the required bearing. By taking two different bearings the precise location of the moving craft can be ascertained. Instead of the slip-rings 3, Fig. 1, capacity plates may be used to transfer the input from the frame aerial to the rectifier. The wave form of the rectified signal energy can be adjusted by varying the value of the coupling-elements between the rectifier valve 9 and the first valve amplifier 10.
Patent GB-1074642-A (GB)
Title: Improvements in or relating to trays for eggs and like ovate articles
Inventor: RUDD GERALD ARTHUR
IPC: B65D85/32
Filed: 1965-06-11
Abstract: 1,074,642. Egg trays. HARTMANN FIBRE Ltd. June 10, 1966 [June 11, 1965], No. 24801/65. Heading B8P. An egg or like tray with ribs (12) extending between the support posts (10) and encompassing the egg pockets (11) so that a land (13) extends from the top of each pocket to the base of each adjacent rib, is characterized in that the four lands associated with each pocket are disposed at different levels relative to the depth of the pocket. Preferably, two diametrically opposite lands are disposed at one level and the other two lands at another level, Figs. 4 and 5 (not shown).
Patent GB-1507005-A (GB)
Title: Restriction indicating wingnut for air cleaners
IPC: F02M35/024
Filed: 1976-09-16
Abstract: 1507005 Air filters DONALDSON CO INC 16 June 1976 [19 June 1975] 24833/76 Heading B1D An air cleaner 10 contains a principle filter 34, a safety filter 24 positioned downstream and spaced apart from the principle filter, and pressure - responsive means adapted to indicate when the pressure drop across the safety filter reaches a predetermined value. The two filters are both mounted on a bracket 21 extended by a threaded rod 22 and each held by a respective wing nut 50 or 32 onto the threaded rod. Wing nut 32 has a passage comprising bores 71, 72 the ends of the passage communicating respectively upstream and downstream of the safety filter 24. A slack diaphragm 73 everts to a second position shown in phantom lines when the filter 24 becomes choked. A spot 75 .in diaphragm 73 shows in translucent window 76 before eversion, and if not everted is observable when end cover 12 is removed to change principle filter 34, indicating that filter 24 need not be changed. Filter 34, may be pleated paper contained between perforated metal cylinders. Wing nut 50 may also be as wing nut 32. Air to be cleaned entering tube 20 impinges on a metal cap 42 protecting the principal filter and passes blades 47 which induce a cyclonic action separating heavy particles prior to filtration.
Patent GB-844706-A (GB)
Title: Improvements in or relating to the formation of ceramic shapes
Inventor: STRIVENS MAURICE ANDREW
IPC: C04B35/26
Filed: 1957-08-07
Abstract: A ceramic ring member, e.g. of ferrite, is cast from a slip comprising a ferrite dispersion and a moulding vehicle comprising a resin dissolved in an organic solvent.  In one example 90% by weight of ferrite is dispersed in methylated spirits and 9% by weight of cold hardening epoxy resin is dissolved in acetone, the ferrite dispersion added to the latter solution, the mixture stirred and evaporated to casting consistency.  1% by weight of a hardener is dissolved in a little acetone and added to the mixture which is then slip-cast in a rubber mould.  The casting is partially dried so that it may be removed and is then heat treated so that the resinous part is removed and the ferrite is caused to sinter without the formation of cracks.  In a further example the moulding vehicle comprises a resin, dissolved in acetone, and wax, dissolved in carbon tetrachloride.  Specification 730,703 is referred to.
Patent GB-1263214-A (GB)
Title: Door-closer for mounting in a door frame or a door
IPC: E05F3/10
Filed: 1970-05-22
Abstract: 1,263,214. Door closer. AMMUS-SYTYTIN OY. 22 May, 1970 [23 May, 1969], No. 24924/70. Heading E2M. A door closer recessable in a door frame or door comprises a return spring positioned by the side of a closing plunger moving axially inside a body, a brake plunger and an operating arm. In the figure, two return springs 12 are positioned (in tubes 1A, 1C) either side of tube 1B containing closing plunger 3, brake plunger 6 and operating arm 7. Opening the door extracts arm 7 causing springs 12 to compress by means of fastening head 5 and actuating plate 4. Oil from the closing plunger flows to the front part of the brake plunger via one-way valve 17. As the door closes, the oil is forced to the rear part of the brake plunger, thus restraining the closing action of the springs 12 and controlling the closing speed.
Patent GB-906623-A (GB)
Title: Improvements in electric resistors
IPC: H01C1/034
Filed: 1960-07-18
Abstract: 906,623. Fixed resistors. WILLIAMS, E. F. July 17, 1961 [July 18, 1960], No. 24950/60. Class 37. A method of manufacturing an electric resistor consists of forming by injection moulding a body 10 from synthetic thermoplastic material with terminal wires T moulded in position, winding resistance wire R on the body 10 and then encapsulating the assembly in thermoplastic material 12. Metal caps 14, which pass over the wires T, are forced on to the plastic material and the wires are soldered to the caps to seal the capsule.
Patent GB-503178-A (GB)
Title: Improvements in and relating to internal combustion engines having control pistons for controlling the inlet and exhaust
IPC: F02M69/00
Filed: 1938-08-26
Abstract: 503,178. Oil engines; valves ; cylinders. PORSCHE, F. Aug. 26, 1938, No. 25087. Convention date, Oct. 8, 1937. [Classes 7 (ii), 7 (iii), and 7 (vi)] In internal-combustion engines operating with liquid-fuel injection into the cylinders, inlet of air and exhaust are controlled by a piston 6 which is of smaller diameter than the working piston, the openings into the combustion chamber of the borings for the injection nozzle 12 and the ignition plug 13 are arranged in the same plane transverse to the cylinder axis. The combustion chamber 11 may be cylindrical and of the diameter of the control piston, or conical, as shown. The inlet and exhaust passages,14 are arranged at an inclination to facilitate the flow of gases.
Patent GB-142397-A (GB)
Title: Improvements in reservoir brushes
IPC: A46B11/00
Filed: 1919-10-14
Abstract: 142,397. McCardell, A. E. Oct. 14, 1919. Reservoir brushes.-In a reservoir brush for cleaning clothes, upholstery, &c., a sheet g of woven absorbent or non-absorbent fibrous material is located directly in contact with the roots of the bristles in the small chamber c between the base f of the reservoir and the upper face of the stock, in order to conduct the spirit evenly to the bristles. The perforations i in the base of the reservoir are arranged at one side, preferably the same as that on which the air-vent and filling valve b is placed, so that flow of the liquid is stopped when the brush is laid on the opposite side.
Patent GB-1423084-A (GB)
Title: Hinge with keeper
IPC: E05D11/10
Filed: 1974-06-06
Abstract: 1423084 Hinges PAUL HETTICH & CO 6 June 1974 [14 June 1973] 25135/74 Heading E2F A hinge comprises a spring biassed keeper 8 pivotally mounted in a housing 4 and a roller 17 on a hinge arm 5 which cooperates with the keeper 8 to provide a resistance to the initial opening of the hinge. The keeper may be biassed by a coil or leaf spring or a synthetic plastics block and may be pivoted on a spindle which is disposed at the base of the housing or adjacent the opening of the housing. Alternatively the pivot may consist of a flexible narrow portion in a plastics keeper.
Patent GB-654553-A (GB)
Title: Stop motion for drawing frames having sliver condensers
IPC: D01H13/16
Filed: 1948-09-27
Abstract: 654,553. Sliver-condensing rollers; stop motions. DOMINION TEXTILE CO., Ltd. Sept. 27, 1948, No. 25161. Convention date, Nov. 19, 1947. [Classes 120(i) and 120(ii)] [Also in Group VIII] Relates to a stop motion apparatus for a drawing frame having a sliver condenser comprising a pair of rotatably mounted shafts 10, 12 electrically insulated from one another and adapted for movement towards and away from each other, and at least one pair of condenser rollers 14, 16 mounted on the shafts, one roller 14 having a groove 24, Fig. 4, and the other roller 16 having a tongue 34 adapted to mate with groove 24, each of the shafts being adapted to carry a lead of an electric circuit. The grooved portion 22 of roller 16 is insulated from shaft 12 and from adjacent non-insulated ring members 28 by an insulating sleeve 26 and insulating collars 30, and portions 38 of roller 14 are adapted to contact the electroconductive members 28 to close the circuit and stop the drawing frame when there is no sliver between the mating tongue and groove of the rollers. Relative axial movement of the rollers resulting in contact between the sides of the tongue and groove thus does not cause stoppage of the machine. The rollers are urged together by clamps 18. Fig. 2, in which half bearings 44 engaging the shafts 10, 12 are slidable on insulating strips 46. One bearing 44 is insulated from the end frame member 42 of the clamp by an insulating member 60 while. the other bear-, ing 44 is engaged by a compression spring 48 the other end of which bears on an insulating seat 50 adjustable in the clamp frame by a set screw 52. To prevent lateral movement of the clamp relative to the shafts, bearings 44 seat in grooves in the shafts.
Patent GB-317729-A (GB)
Title: Device for maintaining the face of the brake block concentric to the wheel on vehicles running on rails
IPC: B61H1/00
Filed: 1929-08-19
Abstract: 317,729. Leggemann, W., and M³ller, W. Aug. 19, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 21, 1929]. Blocks and shoes. - A device for maintaining the face of the brake shoes of railway vehicles concentric to the wheels comprises, according to one construction, a plate a secured to the axle bush g and having a slot h concentric with the axle f. The end b of an arm c extending from the brake block e engages the slot h. The block is suspended as usual by the rod k and a transverse bar m. The length of the arm c is adjustable by a screw d. According to another construction, the arm c has a curved end or a curved slot in its end which rests upon or is engaged by a stud or pin carried by the axle-box above or below the axle. The arm is in this case secured to the block by screws passing through slots so that it may adjust itself angularly in relation to the block.
Patent GB-170999-A (GB)
Title: Improvements in pumps
IPC: F04B53/12
Filed: 1920-09-01
Abstract: 170,999. Nott, W. J. Sept. 1, 1920. Check hinged valves. -Relates mainly to buckets and foot-valves which are provided with oblique seats so that the liquid may have a straight way through. The foot-valve casing is threaded at E, Figs. 1, 4 and 5 to screw into a fitting on the lower end of the barrel A and has an oblique seating F on which fits an oval metal valve D having a soft metal &c. seating. The valve rocks on a shoulder at the bottom of the opening, and is notched at top and bottom to engage with projections K, L, on the casing. The bucket is of similar construction as regards the valve and its seating, and carries two leather packing-rings T, each of which is secured by a nut V screwed on the barrel.