baber/WOPTO huggingface dataset:
Patent GB-1175597-A (GB)
Title: Improvements in or relating to Image Intensifiers
Inventor: MANLEY BRIAN WILLIAM
IPC: H01J31/50
Filed: 1967-06-16
Abstract: 1,175,597. Image tubes. MULLARD Ltd. 16 June, 1967, No. 27917/67. Heading HID. [Also in Division H4] An electronic imaging system comprises a first image intensifier stage of the type employing a first photo-cathode and a first luminescent screen separated by a vacuum space which does not contain any secondary emissive structure, an optical coupling element coupling the first stage to a second image intensifier stage which includes a second photo-cathode, a channel intensifier device and a second luminescent screen on the output side of the channel intensifier. By image intensifiers there is also included image converters in which a change of wavelength is produced. As shown, the first image intensifier stage has a rotationally symmetric electron-optical focusing system of the image inverting type located between photocathode P1 and screen S1, and a fibre optic plate F0, curved to conform to screen Sl, is used to couple the two stages. The second stage is of the " proximity type " in which the photo-cathode P2 is placed very near the channel intensifier I without intermediate electronoptical focusing, and screen S2 is adjacent the channel output electrode E2. The two stages may be within a single envelope, or in separate envelopes in which case the fibre optic plate is split at d. In a second embodiment, Fig. 2 (not shown), the elements P1 and S1 in the first stage are planar and placed very close together without an intermediate focusing system, i.e. " proximity type," to produce a very compact imaging system. If image inversion is required, this may be facilitated by a twisted bundle of optical fibres succeeding screen S2. In a third embodiment, Fig. 3 (not shown), the first stage again is of the " proximity type " and the second stage incorporates an electron-optical focusing system between photo-cathode P2 and the channel input electrode E1. The channel intensifier may, for example, be constructed as described in any of Specifications 1,064,073, 1,064,074, 1,064,075 and 1,090,406.
Patent GB-158703-A (GB)
Title: Improvements in concrete floors or roofs
IPC: E04B5/43
Filed: 1919-11-11
Abstract: 158,703. Jackson, W. J. Meliersh-, (Uni-Form Co.). Nov. 11, 1919. Reinforced-concrete floors; monolithic flooring. -The flooring is constructed without beams or girders but with longitudinal and transverse ribs 1, 2 respectively on the underside in which the reinforcements 4, 5, Fig. 2, are embedded. In the case of an oblong floor, the longitudinal ribs 1 are deeper than the transverse ribs 2. The depths of the longitudinal and transverse ribs and consequently the distances between the respective rods and the neutral plane of the floor are designed with regard to the respective spans. The flooring is supported on columns which may or may not be provided with panels on the top. A ceiling may be attached to the longitudinal ribs, thereby leaving spaces between it and the transverse ribs in which pipes or conduits may be placed. The flooring may be cast by means of removable forms described in Specification 123,696, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.]. Specification 158,397 also is referred to.
Patent GB-749129-A (GB)
Title: Improvements relating to apparatus for discharging coke from coke ovens
Inventor: ROBERTS LESLIE
IPC: C10B41/04
Filed: 1953-10-12
Abstract: 749,129. Inductive signalling and control systems. SIMON-CARVES, Ltd. Dec. 23, 1954 [Oct. 12, 1953], No. 27955/53. Class 40 (5). [Also in Group XII] In a system for ensuring the alignment of coke guide and coke ram machines in a battery of coke ovens, each oven 2 is provided with a solenoid 5 on the discharge side which is electrically connected to a solenoid 6 on the ram side. When the guide 3 is racked into the selected oven a limit switch 8 is operated to apply A.C. to the solenoid 4 carried by the guide, and when the ram 1 is opposite the same oven an E.M.F. is induced in the solenoid 7 on the ram, via solenoids 5, 6, on the oven, whereby a relay is operated to control the main contactor of the ram motor, and a warning light, to enable the operator to start the motor.
Patent GB-445180-A (GB)
Title: Improvements in or relating to steam boiler furnaces
IPC: F23M5/08
Filed: 1934-09-29
Abstract: 445,180. Furnace linings. BRAND WOOD, J., 2, Westbourne Road, Birkdale, Southport. Sept. 29, 1934, Nos. 27960/34 and 29778/35. [Class 51 (i)] A refractory lining for the flue of a boiler furnace of the Lancashire or Cornish type intended for burning pulverized or liquid fuel comprises separate spaced circular sections of refractory material, the width of the sections preferably being three times the width of the spaces 6 between the sections. Each section is composed of a number of arcuate tiles 5.
Patent GB-182421-A (GB)
Title: Improved fire or the like alarm
IPC: G01K3/12
Filed: 1921-10-21
Abstract: 182,421. Burnay, M. de O. July 1, 1921, [Convention date]. Alarms operated by expansion of liquids and gases; electric alarm systems.-An air-expansion alarm device is combined with an alarm thermometer connected in parallel therewith. Sudden expansion of the air in a chamber 1 causes dilation of a chamber 3, the upper wall of which then makes contact with a stud 7a to close an electricalarm circuit 14, 16, the chamber 3 being connected to the terminal 9 through the chamber 1, a base-plate 5, and one of the vertical frame rods 8, which are insulated from the upper plate 6. Normal slow variations of temperature are allowed for by a small opening or vent 4. In case of a slow rise to a predetermined maximum temperature, the alarm circuit 14, 16 is closed by a contact-thermometer 20, which is connected to the terminals 7, 9 by wires 23, 24, the thermometer having either a fixed or an adjustable upper contact. The Specification as open to inspection under Sect. 91 (3) (a) describes also a construction in which the thermometer is not employed. This construction is not included in the Specification as accepted.
Patent GB-324687-A (GB)
Title: Improvements in rotary piston compressors
IPC: F04C29/04
Filed: 1928-10-01
Abstract: 324,687. Steiner, H. Oct. 1, 1928. Cooling; draining.-Cooling fluid is admitted and discharged at one end of a hollow shaft of a rotary compressor and flows adjacent the shaft bearings to cool them from the inside. The fluid enters from a nozzle 15 into a tube 4 inserted in the shaft 3 and returns through the annular space 7 formed therebetween to a chamber having an exhaust pipe 9; a packing ring 16 in an annular recess 17 having a drain pipe 18 prevents leakage reaching the bearings.
Patent GB-376113-A (GB)
Title: Prevention of corrosion in apparatus containing circulating liquid applicable to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1931-10-09
Abstract: 376,113. Preventing corrosion. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm.) Oct. 9, 1931, No. 28078. Convention date, Oct. 20, 1930. Addition to 376,013. [Class 123 (i).] The reserve corrosion preventing substance of the apparatus described in the parent Specification consists of a chromate compound different from that originally added to the circulating liquid. Thus, the original substance may be sodium or potassium chromate or bichromate and the reserve substance ammonium chromate. In the case of an absorption refrigerating machine of the continuously-acting type using an inert gas, the reserve substance is stored in a vessel 12 connected at its upper end to a heat exchanger 5 disposed between the evaporator 6 and the absorber 7 and at its lower end to the bottom of the absorber. A part of the absorbent vapour in the inert gas returning from the absorber condensed in the heat exchanger flows through the vessel 12 to the absorber.
Patent GB-694798-A (GB)
Title: Improvements in or relating to credit sanction systems
Inventor: KING JOHN ARTHUR BARFIELD
IPC: H04M3/523
Filed: 1950-11-17
Abstract: 694,798. Credit sanction systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 16, 1951 [Nov. 17, 1950], No. 28191/50. Class 40 (iv). [Also in Group XVIII] In a credit sanction system, calls by salesmen to an authorization position take up queuing positions. When a salesman at position SP lifts his receiver, a free line finder LF hunts for and connects the calling line to a free group selector GS, which returns dialling tone to the salesman. The salesman dials the single digit 2-7 of the desired authorization position to raise the wipers of GS to the appropriate level, where they hunt for a free outlet to a level circuit such as 1 or a queuing circuit Q. If the authorization position is idle, circuit 1 operates a pilot relay in relay set 2 to call the authorization position AP, while if AP is busy, the Q circuit signals that another salesman is calling, lighting lamps for up to five calls. The authorization clerk operates her speak key to cause the position line finder PF to move to the position corresponding to AP, whereupon the selector finder SF is caused to hunt for and seize the outlet from GS on which the call has appeared and when the authorization clerk lifts her receiver the connection is established. If credit can be sanctioned, the clerk presses the sanction button to energize over a fourth wire the sanction magnet at the salesman's position, so perforating the bill. If the transaction cannot be permitted, the clerk informs the salesman verbally. At the end of the call both receivers are replaced but if a queue exists the clerk leaves her speak-key operated so as to establish connection with the next caller. The salesmen's positions are identified by 3 digits of which the first is 8. A salesman attempting to dial another salesman causes the group selector to close normal post spring NP (not shown) at the eighth level to return N.U. tone and energize a relay G (not shown) which prevents rotary stepping of GS. The authorization clerks, supervisors on levels 9 and 10 and certain selected salesmen can call any substation, the line circuits of these people being broken at a point X (not shown) to prevent operation of relay G, so that rotary stepping takes place in the normal manner. If all outlets of a level in GS are busy, busy tone is returned to the caller. If the caller continues to listen, " A " and " Z " pulses operate relays BZ and H (not shown) to release the connection. The authorization clerk can operate two positions together by throwing a pair key PC, Fig. 10 (not shown). She can also make an outgoing call while holding an incoming call over a temporary loop resistance R6, Fig. 8 (not shown), by operating a dial key. Queuing circuit. When a level circuit is seized, if busy tone is encountered, one of relays QA-QK, Fig. 12, pulls up, the contacts of these relays being arranged in a partial tree circuit so that earth is applied to lead QLA, QLB, QLC, &c., according to whether 1, 2, 3, &c. level circuits are seized.
Patent GB-408617-A (GB)
Title: Improvements in the manufacture of artificial sponges
IPC: B29C44/00
Filed: 1933-10-12
Abstract: <PICT:0408617/IV/1> Artificial sponges are produced from viscose, by pressing the usual sponge mass continuously through a tube which at its exit is heated to such a temperature that the coagulation is complete or has occurred to such an extent that the sponge mass preserves its shape.  In Fig. 1, the raw sponge mass 4 is forced by the worm 1 through the conical tube 6 into the heated tube 7 of iron, nickel, or rust-proof steel.  As the sponge mass contracts on coagulation, the transmission of heat to the mass is assisted by making the exit of the tube 7 of somewhat smaller cross-section than the entrance.  Alternatively, steam may be introduced into the tube at the point where contraction of the mass begins, as in Fig. 2 (not shown).  The worm 1 and conical portion 6 may be surrounded by jackets 8, 9 for cooling purposes.  In an example, a sponge mass is mixed and forced at a temperature not above 20 DEG  C. into a tube heated to 150--200 DEG  C., at a speed of 1 metre in 10 minutes. If a lower temperature is used (100--120 DEG  C.), the formed mass requires to be subjected to an after-coagulation in a hot salt solution.  Specifications 245,049, 308,838, [both in Class 2 (ii)], 369,082, and 379,235 are referred to.
Patent GB-473733-A (GB)
Title: Improvements relating to the ready stowing and presenting for access of such articles as typewriters, sewing machines or other apparatus
IPC: A47B21/02
Filed: 1936-10-17
Abstract: 473,733. Cabinets. COLEMAN, A. M., BA1ER, C. C., and LEE, G. A. Oct. 17, 1936, No. 28315. [Class 52 (i)] A typewriter or like article is carried by a platform 12 which can slide horizontally into a casing 10 and when fully withdrawn; freeing rearward rollers 19 from rails 20 can be raised vertically to the position of use by the aid of a spring or other counterbalancing means, rearward motion being prevented by a catch which is freed when the platform is again fully depressed. In the preferred form the torque from a spring 22 is applied through a fusee-cam 23 and cable 24 to a parallel linkage 25, 26 and the device is held in the fully raised position by a catch 33 operated by a handle 38, there being interposed in the operating linkage a feeler arm 37 which prevents release if any portion of the machine projects beyond the platform.
Patent GB-464339-A (GB)
Title: Improved front feed device for calculating machines and similar accounting machines
IPC: B41J11/48
Filed: 1935-10-15
Abstract: 464,339. Typewriters &c. NATIONAL CASH REGISTER CO. Oct. 15, 1935, No. 28458. Convention date, Dec. 11, 1934. [Class 100 (iv)] Sheet feeding and guiding arrangements.- A calculating or like machine having a carriage supporting a platen which can be rocked to provide a front-feed throat is provided with-resilient straps for holding a front-fed card or sheet, the free ends of the straps being connected by a rod or other means for holding the straps in released position when the platen is in open-throat position. The arrangement shown in openthroat position in the Figure comprises a rocking front-feed guide 22, and a rocking frame supporting a platen 14 and rear and front feed paper-tables 13, 40. The platen is now associated with resilient straps 19 which are secured to the table 13 and are connected at the front by a rod 20. The straps hold a front-fed ledger-card and a rear-fed journal-sheet 11 in engagement with the platen. When the platen is moved into open-throat position, and the rod 20 is engaged with notches 21 in the guide 22, a ledgercard can be inserted or removed from the front, the journal-sheet being retained by means of rollers 15. A statement sheet 25 can be front-fed over the guide. 22 and table 40 when the platen is in open-throat position.
Patent GB-825652-A (GB)
Title: Improvements in landing devices for aircraft which take-off and land vertically
Inventor: HABERKORN ERICH
IPC: B64F1/12
Filed: 1956-09-18
Abstract: 825,652. Aircraft undercarriages. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 18, 1956 [Sept. 19, 1955; Aug. 1, 1956], No. 28482/56. Class 4. A vertical take-off aircraft landing gear comprises a plurality of hollow feet projecting to the rear of the aircraft, each foot supporting a tubular section extending fore-and-aft and accommodating a rod which projects rearwardly from the section, is resiliently urged rearwardly, and carries a base member at its rear end, flaps pivoted to and radiating from the base member being connected with the section through hinged linkages. In the arrangement shown, a cylinder 1 is secured to the aircraft and to a concentric cylinder 15. A further cylinder 2 slides on a seal 16 between cylinders 1 and 15, and is fast with an inner cylinder 10 formed with a piston head 14 working in cylinder 15, and forming part of a conventional oleo-pneumatic shock absorber. A rod 9 slides in cylinder 10 and is urged outwardly by a spring 11 extending between a partition 12 and a base plate 3 on rod 9. The base plate is rectangular, and four flaps 5 (two shown) are pivoted to its edges at 4. Links 6 extend between the flaps and ribs 13 on cylinder 10, whereby when the plate 3 contacts the ground, it compresses spring 9 and unfolds the flaps outwardly. In flight, the spring extends and the flaps 5 fold inwardly and continue the shape of cylinder 2 in a faired manner. In Fig. 4, (not shown) the base member carries a wheel, and rod 9 is freely rotatable so that the wheel may castor. Alternatively, the wheels may be controlled by a human or automatic pilot, and brakes on the wheels may be operated individually or collectively.
Patent GB-533254-A (GB)
Title: Improvements in or relating to thermionic amplifiers with negative feedback and volume control
IPC: H03G9/08
Filed: 1939-10-23
Abstract: 533,254. Valve circuits for wireless reception. PHILIPS LAMPS, Ltd. Oct. 23, 1939, No. 28510. Convention date, Oct. 26, 1938. [Class 40 (v)] A radio receiver is arranged so that the amount of negative feed-back is reduced as the volume control is moved towards the position of maximum amplification, in which position, the negative feed-back is zero. The high frequency oscillations are fed from tuned circuit 2, 3 to a diode anode 9 and to a cathode 5 by way of resistances 11, 12 and coil 14. The rectified signal is taken from a slide contact 13 to grid 6 where after amplification, it passes by way of transformer 17, 18 to loudspeaker 20. Resistance 13 and coil 14 form the arms of a Wheatstone bridge the other two arms of which are formed by coil 15 and resistance 16, the ratio of the impedances being such that there is no potential difference between the point of junction of 12, 16 and the point of potential of 14, 15, due to the negative feed-back junction which is developed across 14, 15 and fed to grid 6 from movable contact 13. Thus as point 13 moves upwards to the point of maximum amplification, the amount of feed-back is reduced to zero. A tone filter 26-28 may be switched across the other diagonal of the bridge to give tone control which varies with volume control. Reference has been directed by the Comptroller to Specification 497,319.
Patent GB-410739-A (GB)
Title: Improved method and process for the purification of water for household or industrial uses
IPC: C02F1/28
Filed: 1932-10-13
Abstract: 410,739. Purifying water ; filters. FERGUSON, H., Mandala, Upper Arthur's Road, Sea Point, Cape Town, South Africa. Oct. 13, 1932, No. 28539. [Class 46.] Water, particularly peaty water, is purified and decolourized by contact with a substantially insoluble mild acid-neutralizing agent, such as calcium carbonate or magnesium carbonate, and a colloidal adsorptive agent comprising aluminium hydroxide or a phosphate such as phosphate of calcium or aluminium. The adsorptive agent preferably takes the form of a film or coating covering each particle of an inert comminuted material. Fig. 1 shows an upward flow filter having a bed 3 of granular calcium carbonate and a bed 4 of sand, which has been intimately mixed with colloidal aluminium hydroxide and dried at a temperature not exceeding 40‹ C. The flow through the filter from a supply main 7 is throttled by a device 6<a>, shown in detail in Fig. 2. The device 6<a> comprises a double-coned nipple 12 with a small aperture 13, which constitutes a replaceable connecting means for adjacent ends of two parts of a pipe 6. Powdered pumice stone may be used instead of sand. Water may be first treated with calcium carbonate and then mixed with colloidal aluminium hydroxide, which is subsequently removed by filtration. The Provisional Specification refers to the use of phosphate of manganese as adsorptive agent and states that the colloidal alumina may be precipitated on calcium carbonate.
Patent GB-1353401-A (GB)
Title: Methods of manufacturing shell moulds for lost-pattern precision casting
IPC: B22C13/08
Filed: 1971-06-17
Abstract: 1353401 Moulding shell moulds REGIE NATIONALE DES USINES RENAULT 17 June 1971 [3 July 1970] 28548/71 Heading B5A In a method of manufacturing shell moulds in which a pattern or a pattern cluster 8 is immersed in succession in a number of vessels 3, 4 containing, alternately, a liquid refractory slip and a fluidized suspension of refractory grains, the central holder 9 of each pattern or pattern cluster is detachably received by a head 1 held by a support 6 on a turntable 2 whereby the head is brought, by intermittent rotation of the turntable, above each of the vessels in turn. Each pattern or cluster is rotated about the axis of its holder and when it is positioned above a vessel it is pivoted about a horizontal axis 14, Fig. 2, perpendicular to the holder axis and offset relative thereto whereby the pattern or cluster is immersed in the material of that vessel. On removal, the pattern is held with its axis obliquely upward. Specification 1,353,402 is referred to.
Patent GB-1170555-A (GB)
Title: Heat-Exchanger
IPC: F16L55/05
Filed: 1968-06-14
Abstract: 1,170,555. Tubular heat exchangers. CARLZEISS - STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN]. 14 June, 1968 [21 June, 1967], No. 28555/68. Heading F4S. A heat exchanger for liquids, gases and vapours or mixtures thereof comprises a tube through which the fluid passes over tubular coils 6, 8 of glass, ceramic or like brittle material which are supplied with coolant water or other medium from a pipe 1 via a gas chamber 2. Air or gas forms a cushion in the upper part of the chamber 2 to take up surges in the coolant e.g. on closing down, and the lower part of the chamber is filled with the coolant to the level 4. The glass coils partially surround the gas chamber and are united at 7 to allow flow of coolant to a common discharge 9 and drain 10.
Patent GB-1480014-A (GB)
Title: Manufacture of extruded structural profiles
IPC: C22C1/04
Filed: 1975-07-09
Abstract: 1480014 Making extruded profiles from consolidated scrap RIKEN KEIKINZOKU KOGYO KK 9 July 1975 [10 Dec 1974] 28850/75 Headings B3A B3H and B3P A method of making extruded structural profiles from aluminium based scraps 1 comprises breaking up the scraps into chips 6, charging the chips into a press housing 29, compacting them into a substantially cylindrical body 24, heating the body and placing it in an extruder housing 44, exhausting air from the housing and extruding the body into a structural profile. The scraps 1 are rolled into plate form 3 and then broken into chips 6 in a crusher 5. The chips are washed at a station 12 in, e.g. in trichlorethylene vapour or nitric acid followed by a water rinse. The washed chips are dried at a station 13 by infra-red lamps 14 and they are subsequently fed to a heating station 15. The chips are heated in a rotary cylinder 18 to above 300 C. and then compacted at a shaping station 21. The press housing 29 is evacuated via a bore 28 by a vacuum device 23 with a punch 22 sealing the bore of the housing. When the desired vacuum level is reached a plunger 26 is raised to close the bore 28 and the punch is driven downwardly to compact the chips into the cylindrical body 24. The housing 29 is provided with an internal heating device and the body 24 is ejected from it by the plunger 26. In an alternative construction, Fig. 3 (not shown), the bore of a press (33) is evacuated through its bottom surface and the housing and ram (39) of the press are both reciprocable so that after compaction the housing is raised by hydraulic means (38) while the ram remains stationary thereby facilitating removal of the body from the press. The extruder housing 44 is exhausted by vacuum means 23 and the heated body 24 is extruded by a ram 45 through an extruder die (47), Fig. 2 (not shown) while air is exhausted through passage 48.