baber/WOPTO huggingface dataset:
Patent GB-863828-A (GB)
Title: Improvements in or relating to pressure reducing devices
Inventor: FITT PETER WILLIAM
IPC: A62B9/02
Filed: 1958-06-04
Abstract: 863,828. Respiratory apparatus. NORMALAIR Ltd. June 4, 1959 [June 4, 1958], No. 17862/58. Class 81 (2). Oxygen supply pressure reducing apparatus for use at high altitudes comprises an oxygen inlet 2 communicating with an outlet chamber 9 through a demand valve 5 operated by a diaphragm 8 which is subjected to oxygen outlet pressure and the pressure in a control chamber 10, which control chamber communicates with the oxygen supply through a valve controlled restriction 13, the control chamber pressure being dependent upon a valve 19 through which it communicates with atmosphere unless a downstream valve 24 is closed so that a high-pressure pulse develops in the control and outlet chambers. At normal cabin pressures, e.g. up to 8000 ft. altitude, the demand valve 5 and a valve 14 controlling the restriction 13 are closed and the main control chamber 10 communicates with the cabin through the pressure-controlling valve 19, the downstream valve 24 and a chamber 23. At a lower cabin pressure, e.g. equivalent to a height of 10,000 feet, the restriction controlling valve 14 is opened by a bellows 16 located in a chamber 17 which is at cabin pressure, oxygen under pressure then flairing into the control chamber 10 which still communicates with the cabin and is thus maintained at a pressure of about 10 lbs. sq. inch. If the cabin pressure is further reduced, e.g. equivalent to a height of 14,000 feet, a valve 39, which controls the pressure in a pulse-controlling chamber 35 on one side of a second diaphragm 34, opens under the control of a bellows 43. This diaphragm permits the downstream valve to close under the action of a spring 25. The main controlchamber is this cut off from the cabin and its pressure rises so that the main diaphragm moves to open the demand valve 5, and oxygen is supplied to the outlet chamber 9 under sufficient pressure to present masks connected with the outlet chamber to the passengers and crew. After a period of time, the pressure on both sides of the second diaphragm 34 is equalized through a restriction 44 and the downstream valve opens. Communication between the control chamber and the cabin is thus re-established, the pressure in the control chamber being dependent upon the degree of closure of the pressure-controlling valve 19 which is operated by a bellows 27 and a spring 20 in combination. Oxygen may be admitted to the control chamber at any altitude by a manually-operable valve 46.
Patent GB-421726-A (GB)
Title: Improvements in apparatus for cashing treasury notes and the like
IPC: G07D11/00
Filed: 1933-06-23
Abstract: 421,726. Tills. LISTER, P., Victoria Factory, Gamble Street, Nottingham. June 23, 1933, No. 17894. [Class 116] [See also Group XXV] In a till each of a number of receptacles normally containing cash to the value of a Treasury note is provided with locking means and a key so constructed that the kev is retained in the lock after being used to unlock the receptacle and independently of any operation of the key. Each receptacle A is held in the closed position by the engagement of a projection on a spring C with a fixed catch D<1>. In the unlocking operation the forward surface H<3> of the key H engages the end G<1> of a detent which normally holds a releasing slide E from movement. After a notch H<1> of the key has passed the end of the detent, the forward end of the key moves the slide E so that an arm E disengages the projection on the spring C from the catch D', allowing the receptacle to open under the action of a spring F. After the unlocking operation the key H moves outwardly under the action of a spring E<9>, attached to the slide E, until a notch H<2> is engaged by the end G<1> of the detent G. After withdrawal of the cash, the receptacle is moved to the closed position in which it is held by the members C, D<1>. To unlock all the drawers and to permit withdrawal of all the keys a normally inaccessible lever K<2> disposed within the casing operates a slide J provided with openings J<2> having inclined slots. The movement of the slide to the right rocks the ends G<1> of the detent levers G out of engagement with the notches H<2> of the keys which are ejected by the slides under the action of their springs E<3>, whilst a projection J<1> on the slide J engages the projections on the members C to release the receptacles. A stop L in the key space co-operates with a slot H<5> in the key to prevent its use in such a manner that it is not retained after being used to effect the unlocking operation.
Patent GB-864090-A (GB)
Title: Improvements in and relating to continuous packaging machines
IPC: B65B9/04
Filed: 1959-05-26
Abstract: 864,090. Packaging-machines. GENERAL MOTORS CORPORATION. May 26, 1959 [June 23, 1958], No. 17900/59. Class 94(1). In a machine for packaging articles continuously, a strip of thermo-plastic material, which may be cellulose acetate, butyrate, polyethylene, or vinyle, is heated and article receiving pockets formed therein, the strip is cooled, filled with articles and a cover strip is heated and sealed on to the first strip and then the strips are slit longitudinally and transversely to separate individual packages. Gearing in pedestals 26, 28 drives the various parts of the machine and the pedestal 26 may house the driving motor which may be a fluid or electric motor. The first strip 36 on a roll 34 is driven by a roll 42, 44 by means of a gearbox 40. The strip is carried by a belt 54 beneath a radiant heater 56 and then to a rotating forming drum 58 where a moving head 86 forms the strip into two parallel series of recesses 130 by the application of a vacuum. The strip then passes to a refrigeration chamber 116 in which air is circulated. A feed hopper 126 fills each recess and a cover strip 140 is passed through a radiant heater 148 and round a roll 144 which presses it on to the filled recesses. The sealing is performed by feet 162, 164, 166, Fig. 5a, forming transverse seals and by sealing disks 156, 158, 160, Fig. 5a, forming longitudinal seals, a roll 168 acting as an indexing arrangement by engaging spaces between the recesses 130. A vertical band saw 230 cuts the strips into two longitudinal series and a horizontal saw 252 separates each package from the following one. Suitable cam mechanism within a housing 180 on the pedestal 26 responds to movement of the roll 168 as it follows the under surface of each recess 130 and causes movement of the horizontal saw 252 so that the saw moves with the strips for a short period of time while it cuts the strips transversely. After separation, each package passes down a shoot 318 to a conveyer 322.
Patent GB-219705-A (GB)
Title: Improvements in electron discharge devices and circuit arrangements therefor
IPC: H04B1/16
Filed: 1924-07-26
Abstract: 219,705. British Thomson-Houston Co., Ltd., (Assignees of Hull, A. W.). July 27, 1923, [Convention date]. Addition to 205,058. Thermionic amplifiers and detectors.- Electron discharge devices comprising a rectifying portion and an amplifying portion of the type described in the parent Specification are connected in cascade to produce successive amplification and are oppositely connected to an alternating current source in order to produce full-wave rectification. As applied to a wireless receiver, the rectifying portions 4, 5 of the devices 2, 3 are connected to opposite terminals of the supply transformer 9, from which the heating currents for the auxiliary cathodes 2 are tapped off as shown. The anodes 7 are connected through a. common resistance 10 to an intermediate point on the transformer 9. The main cathodes 5 are also connected to a, common point across condensers 11 which serve in combination with the resistance 10 to smooth out fluctuation in the current supplied to the anodes 7. The auxiliary cathode 4 of the device 1 serves merely to heat the main cathode 5, for which purpose only a comparatively small alternating voltage is supplied from the source, as shown, thereby minimizing disturbances in the detecting circuits. The rectified plate voltage for the valve 1 is supplied by a tapping from the rectifying portion of the valve 2. Instead of the coupling transformers 13, 14 between the valves 2, 3, a choke coil in series with a resistance shunted by a condenser may be used. Fig. 3 shows a duplex tube for securing full-wave rectification. Two auxiliary cathodes 25 are surrounded by one cylindrical main cathode 26 and are separated by a partition 27. There is a single control or grid electrode 28 and one anode 29. the circuit connections to the supply transformer 9 being identical with those shown in Fig. 1.
Patent GB-1601746-A (GB)
Title: Manufacture of 3,5-dihaloanilines
IPC: C07C/
Filed: 1978-05-05
Abstract: 3,5-dihaloanilines are prepared by reacting 1,3,5-trihalobenzenes with ammonia in the presence of a copper catalyst. The 3,5-dihaloanilines which can be prepared are valuable starting substances for the preparation of dyes and pesticides.
Patent GB-260549-A (GB)
Title: Improvements in railway rails and securing means therefor
IPC: E01B25/00
Filed: 1926-07-19
Abstract: 260,549. Perry, H. W. Nov. 2, 1925, [Convention date]. Portable railways; rails; tie-bars.-Tracks for flangeless wheels comprise pairs of angle-bars 1, 4 aligned by clips 5 cut from sheet metal, the clips being spaced by tie-bars 17 of angle-iron. The clips have flanges 12, 14 engaging the edges of the rails, and slotted tongues 15 engaged by projections 19 on the tie-bars 17.
Patent GB-110061-A (GB)
Title: Improvements in Typewriting and like Machines.
Inventor: JAMES REGINALD WILLIAM
IPC: B41J5/14
Filed: 1916-12-14
Abstract: 110,061. James, R. W., (Remington Typewriter Co.). Dec. 14, 1916. Type actions.-keylevers or other actionlevers are pivoted on a rod which is located in a channel formed between two rows of tongues struck up from a sheet-metal plate. As shown, alternate tongues 13, 14 on the plate 4 are offset in opposite directions to form a Y- shaped channel for the pivot-rod 16, and spaces 15 are left between adjacent tongues to receive the ends of the key-levers 2. The key-levers are held in engagement with the pivot-rod by returning-springs 18 which may be attached to the bar 19 described in Specification 109,181. Longitudinal movement of the pivot-rod is prevented by tongues 17 which engage the ends of the pivotrod. The frame 1 of the machine is provided with screws 7 which pass through apertures 6 in a flange 5 on the plate and carry nuts 11. The frame 1 is turned upside down preparatory to assembling the key-levers, the springs, and the pivot-rod.
Patent GB-889448-A (GB)
Title: Development of electrostatic images
IPC: G03G15/09
Filed: 1958-06-05
Abstract: 889,448. Electrophotographic processes. KOLB, O. K. (Haloid Co.). June 5, 1958, No. 18010/58. Class 98(2). In a magnetic brush for applying developing powder to a surface bearing an electrostatic latent image, the magnetic carrier particles adhere to a non-magnetic sheath surrounding the permanent or induced magnet and the sheath prevents any particles from reaching the magnet during withdrawal therefrom. In one form, (Fig. 1, not shown) a bar magnet is enclosed in an aluminium, brass or glass sheath of test-tube shape provided with a down-turned collar of sufficient capacity to accommodate the particles of the magnetic brush clinging to the lower end of the tube. Thus, when the magnet is withdrawn, the brush particles are all trapped in the collar. As shown, the brush particles 17 are carried on a cylindrical brass sheath 18 having non- magnetic end flanges 20 and are swept across the electrostatic latent image bearing surface of plate 16 by rotating shaft 4 carrying skew ferro magnetic toothed discs 7 which are magnetised by permanent Alnico magnets 8, 8<SP>1</SP> through soft iron pieces 10, 11, 11<SP>1</SP>, 12 and 12'. The plate 16 is simultaneously moved through the apparatus. In a modified form the discs 7 are not toothed and the cylinder 18 is arranged to be rotated with the discs. After removing bearing blocks 6, 12, the discs 7 can be removed endwise from the cylinder 18 and the magnetic particles are prevented from adhering to the discs by a flange 20.
Patent GB-237593-A (GB)
IPC: H01G4/06
Filed: 1925-07-14
Abstract: 237,593. Silbermann, S. July 22, 1924, [Convention date]. Condensers.-A condenser for high voltages is formed in lengths similar to conducting cables, and the core can be made of steel wire for purposes of strength.. One coating of the condenser U. Fig. 1, of the drawings as open to inspection under Sect. 91 (3) (a) of the Act, is formed by the metallic core or by a metallic coating of the core, while the other coating is a layer of metallic foil &c. V and is connected to the covering M. There can be intermediate layers connected in parallel so as to give a greater capacity. A three-phase delta-connected condenser is shown in Fig. 4, in which the three capacities are approximately equal, the three condenser coatings being U, U1, U2-V1, V2-and W1, W2. A star-connected condenser can be constructed in a similar manner. A higher capacity per unit volume is stated to be obtained by subdividing the capacity by intermediate layers. Fig. 5 shows such a subdivision applied to a singlephase condensers. The layers U, U1 being one pole and the layer V1 the other pole. These condensers can be mounted on drums or in special casings filled with oil. When used on low voltage circuits they may be connected to the secondary of a step-up transformer, either located in an adjacent casing or in the same casing. The Specification as accepted is accompanied by drawings slightly different from those open to inspection under Sect. 91 (3) (a) of the Act.
Patent GB-847170-A (GB)
Title: Reclining chairs
IPC: A47C1/0355
Filed: 1958-06-06
Abstract: 847,170. Seats. LORENZ, A. June 6, 1958 [June 19, 1957], No. 18105/58. Class 52(2) Relates to two linkages for supporting the seat 4 and back 5 of a reclining chair on support frame 1 in such manner that the seat and back can tilt as a unit from an upright to a tilted position and then the back can be tilted relative to the seat (which also moves further) to a full reclining position. As shown in Figs 1-3, the seat 4 has a rigid extension 7 pivoted at 8'to the back 5 and abutting a stop 9 thereon. The back is supported on the frame by a link 10 pivoted to the latter at 12 and to the former at 11 while the seat is supported by a link 16 pivoted thereto at 17 and pivoted at its lower end at 18 to a suspension link 19 pivoted at 20 to the frame 1. In the upright position (Fig. 1) the pivot 18 rests on a fixed frame member 2 and as the chair is moved to the tilted position (Fig. 2) links 16, 10 swing about pivots 18, 12 respectively and the seat and back move as a unit with extension 7 in contact with stop 9. The linkage is in effect a four bar linkage constituted by: 1, the frame 1 between pivots 18, 12; 2, the link 16; 3, the seat 4, extension 7 and the back between pivots 8, 11; and 4, the link 10. The tilted position is reached when movement of links 16, 10 about pivots 17, 12 is arrested by abutment with stops 15, 13. On movement to the reclining position of Fig. 3, the back 5 tilts about pivot 11 thus removing stop 9 from extension 7 and the seat is drawn rearwards causing link 19 to swing about pivot 20, the front part of the seat being thus raised. The linkage now acts as a different four bar linkage as follows: 1, the frame between pivots 20 and 10 and the link 10; 2, the link 19; 3, link 16, seat 4 and extension 7; and 4, the back 5 between pivots 8, 11. During movement to tipped and reclining positions, the back 5 projects a leg rest 6 through link 24, two-armed lever 21, link 27 and toggle 29, 32. Pivot 28 abuts link 16 in the position of Fig. 1 to prevent forward pivoting of links 16. In a modified form, Fig. 6, the seat 4 has a rigid depending part 40 pivoted to a suspending link 42. During movement to tilted position, extension 7 is in contact with abutment 9 and the back tilts about pivot 45 but during movement to reclining position, the back tilts about pivot 46. The leg rest 6 is extended by an actuating link 55 pivoted thereto, the leg rest being guided by a lever 59 pivoted to the seat and having a telescopic connection 61 with the rest, rollers 62 being provided.
Patent GB-256596-A (GB)
Title: Improvements in steam condensing apparatus
IPC: F28B1/00
Filed: 1926-07-20
Abstract: 256,596. Worthington Pump & Machinery Corporation, (Assignees of Lucke, C. E.). Aug. 5, 1925. [Convention date]. Straight tubes between headers; drip-interception devices.-A plurality of tube-banks D of substantially uniform flow-resistance in a condenser, are provided with an air chamber on the outlet face of each bank connected to a separate air offtake. In Fig. 1 the banks are superposed and the air chambers 1 and air offtakes 2 are formed by plates a extending over the upper surface of each bank. In Fig. 2 a double set of banks is provided. The Specification as open to inspection under Sect. 91 (3) (a) comprises also constructions in which a single air-offtake is used in connection with a plurality of tube banks. This subjectmatter does not appear in the Specification as accepted.
Patent GB-461811-A (GB)
Title: Improvements in and relating to apparatus for sterilising dairy utensils and the like
IPC: A61L2/07
Filed: 1936-06-25
Abstract: 461,811. Sterilizing-chambers. McCRAE, J. P., and JONES, E. H. June 25, 1936, No. 18252/35. [Class 81 (i)] A rectangular sterilizing-cabinet comprises an inner lining 10 and an outer casing 11 preferably of metal externally covered with asbestos, thus providing a space 12 through which the products of combustion from a gas burner 17 pass to a flue 13. The burner heats a well 16 in the bottom of the cabinet which is supplied with water from a tank 21. The level of the water in the tank 21 and therefore in the well 16 is maintained constant by means of a ball valve or the like 22. The tap controlling the gas supply to the burner and the tap controlling the flow of water from the tank to the pan overlap or are similarly connected so that the water tap must be turned on before the gas tap can be operated. The water tap is of a three-way type, the arrangement being such that when the supply from the tank is turned off the third passage allows the water in the well to drain away. A door of suitable heat-insulating construction is provided in the front of the cabinet. The burner may be pivotally mounted to be swung outwards or alternatively, a pilot jet may be provided. Specification 277,750, [Class 81 (i)], is referred to.
Patent GB-298507-A (GB)
Title: Improvements relating to furnaces
IPC: C21D9/70
Filed: 1927-07-09
Abstract: 298,507. Williams, D. July 9, 1927. Reverberatory furnaces. - In a furnace for heating steel bars of the kind comprising a firebox A and a heating chamber B separated by a bridge wall C, and in which the gases from the chamber B are exhausted to the stack through flues G arranged to heat substantially the whole floor area of the heating-chamber, a perorated or checkerwork partition D extending to the roof of the furnace is interposed between the firebox and the heating-chamber. As shown the partition D forms an upward extension of the bridge C. The heating-gases leave the chamber B through damper-controlled openings P, Q and pass to symmetrically arranged sinuous flues F, K, which unite in the outlet flue N. The wall M between the two sets of flues may be omitted. Doors R<1> - - R<5> are provided for inspection and cleaning, and air may be admitted to the upper part of the firebox through the damper-controlled opening W.
Patent GB-711231-A (GB)
Title: Improvements in or relating to pipe wrenches
Inventor: SHARMAN JOHN CHARLES
IPC: B25B13/12
Filed: 1951-08-02
Abstract: 711,231. Wrenches. GARR INGTONS, Ltd. July 30, 1952 [Aug. 2, 1951], No. 18287/51 Class 61 A pipe wrench as described in Specifications 711,228, 711,229 and 711,230 is provided with a detachable, tubular handle 14 having a cylindrical end part 35 adapted to slide over and engag closely with a spigot 13 on th wrench body, the handle being of such construction that bend ing occurs when excessive torqu is applied to the wrench. Th lower half 36 of the handle i flattened to provide a convenien hand grip. In a wrench mad of medium or high carbon steel the handle comprises a mild steel tube of relative smal wall thickness. On excessiv torque being applied to th wrench, the part 38 of th handle commences to bend.
Patent GB-569230-A (GB)
Title: Improvements in railway rail-joints
IPC: E01B11/40
Filed: 1943-11-04
Abstract: 569,230. Rail joints. OVSIOWITZ, J., and OVSIOWITZ, S. Nov. 4, 1943, No. 18317. [Class 104 (ii)] A rail joint comprises a tongue &c. b of web height on one rail and projecting into a recess g in the other, with upper and lower horizontal bearing surfaces k, l between tongue and recess. The flange e of the tongued rail may project beyond the head d to support the tongue, the flange j of the other rail being correspondingly cut away. In another form, both rail ends are recessed, and the tongue 5 is then welded &c. in one recess and slides in the other. The webs may be thickened where the tongue and recess are formed.
Patent GB-641051-A (GB)
Title: Improvements in or connected with decorticating machines
IPC: D01B1/42
Filed: 1948-07-08
Abstract: 641,051. Decorticating fibrous leaves. ROBEY & CO., Ltd., and LEES, P. W. Q. July 8, 1948. No. 18371. [Class 120(i)) A decorticating machine for the fibrous leaves of plants, particularly Mauritius hemp, incorporates crushing rollers adapted to crush the butt or bottom ends of the leaves, a pair of rotatable drums fitted with beaters, and means for gripping the crushed ends of the leaves and drawing the leaves upwards between the pair of beater drums which cooperate to decorticate both sides of the leaf simultaneously. As shown, leaves are placed transversely on conveyer 1 so that the butt ends are crushed between the rollers 5, 6. The crushed ends are then gripped between a rope or chain 26 and a grooved gripping wheel 11 which carry the leaves around and draw them upwards between a pair of revolving beater drums 27, 28 (not shown) so that the whole leaf, apart from the short butt end gripped between rope &c. 26 and wheel 11, is decorticated. When a leaf is released at the top of wheel 11 it slides down a delivery bar. Water may be discharged through jets onto the leaves during decortication by drums 27, 28. Rope &c. 26 is tensioned by a jockey pulley 21 and driven from a pulley 18. The undecorticated butt ends of the leaves may be cut off; alternatively, leaves may be passed from the delivery bar to a second gripping wheel and beater drums to decorticate the butt ends.