baber/WOPTO huggingface dataset:
Patent GB-1006667-A (GB)
Title: Device for use in installing and removing supporting structures consisting of girder units
IPC: E04G17/16
Filed: 1962-04-27
Abstract: 1,006,667. Bridges; hangars; truss girders; shuttering for casting bridges. E. M. HUNNEBECK. April 27, 1962 [April 27, 1961], No. 16194/62. Headings E1G and E1S. An end bearing unit for facilitating the installation and removal of one or an assembly of straight or arched truss girders in bridges and hangars comprises an upper member pivotally connectible to the upper boom of the girder and secured to a bearing member adjustably spaced from the girder. As shown, Fig. 6, the upper member 13 of an end bearing unit is of adjustable length and is pivoted to the upper boom 4 of the end girder at 12. Rigidly secured to the other end of the member 13 is a rounded bearing member 22<SP>1</SP> connected to a bearing plate 25, mounted on an abutment 27, by a pin (not shown) passing through a slot in the member 22<SP>1</SP>, which is elongated in the longitudinal direction of the girder, and screwed to the plate 25. To raise or lower an end of the girder or girder assembly a turnbuckle 18 pivoted at 19 to the lower boom 7 and to a tensioned rod of an additional lower trussing if any and to the member 13 at 21 is shortened or lengthened respectively, the overall span of the girder(s) being shortened and the bearing member 22<SP>1</SP> pivoting and moving inwardly on the plate 25. An alternative form of bearing member 22<SP>11</SP>, Fig. 9, for use with steeply arched girders, has a slot 28<SP>1</SP> in its rounded bearing face which engages the shank of a headed member 30 secured to a bearing plate 25<SP>1</SP> which may be mounted on an abutment surface at an angle to the horizontal. If the girders are used as supports during the construction of reinforced concrete structures, e.g. bridges, the end bearing units enable the girders to be lowered and removed when the concrete has set.
Patent GB-1098494-A (GB)
Title: Mowing machine as side attachment for agricultural tractor
IPC: A01D34/06
Filed: 1965-04-15
Abstract: 1,098,494. Capacitors. TELEGRAPH CONDENSER CO. Ltd. April 13, 1965 [April 16, 1964], No. 15627/65. Heading H1M. An electrolytic capacitor (Fig. 1) comprises a pair of foils 11, 12 of valve metal, e.g. aluminium interposed with porous, e.g. paper spacers 13 convolutely wound with the respective electrodes protruding from opposite ends of the roll. The projecting convoluted edges are compressed into electrical contact and covered by conductive layers 14, 16 of e.g. sprayed aluminium, to which are attached metallic terminal studs 15, 17 encased in plastic plugs 21, 22. The capacitor is impregnated with a glycol borate or glycol formate electrolyte to saturate the spacers, after which the dielectric oxide film is formed on the anode foil by applying a direct voltage between anode and cathode. The capacitor is enclosed in a tubular metal casing (Fig. 3, not shown) which is crimped round the underside of each plug 21, 22 and swaged over resilient rings placed over the plugs. The foils may be preformed before winding, and the protruding foil turns may be welded, brazed, or soldered, or attached by conductive resin to the terminal studs either directly or over connector strips. Other valve metals may be used, the cathode may be connected to the metal casing, or terminal leads may be brought out at one end. The capacitor may be constructed as a feedthrough capacitor.
Patent GB-456226-A (GB)
Title: A device for increasing the speed of transmission of pressure-alteration impulses in pneumatic brake pipes
IPC: E01D15/02
Filed: 1935-06-05
Abstract: 456,226. Fluid-pressure brakes; valves; electric switches. KNORR-BREMSE AKT.-GES., 9, Neue Bahnhofstrasse, Lichtenberg, Berlin. June 5, 1935, No. 16327. Convention date, June 14, 1934. [Class 103 (i)] [See also Groups XXIX and XXXVII] In a device for increasing the speed of transmission of pressure-variation impulses in the brake pipe of pneumatic brake systems for vehicles comprising a brake-pipe venting valve at one end of the vehicle operated by a magnet which is energized by a switch disposed at the other end of the vehicle, the switch being operated by the pressure-variation impulse, a hydraulic or other transmission device is arranged between the magnet and the valve and is such as to give a greater movement to the valve for a given movement of the magnet armature. Each pneumatically operated switch comprises a fixed contact ring 13 and a contact ring 12 connected by rod 7 to a bellows 4 which is normally filled with compressed air from the brake pipe 1 through a restricted passage 6 so that the contacts are held apart by a spring s. The contact 12 has a valve disc 9 which is normally seated on a ring projecting from the casing 2 to form a chamber 10 connected to the atmosphere through a restricted passage 11. Each venting valve device comprises a magnet 14, the armature 15 of which opens the brake pipe venting valve 20 through a hydraulic transmission comprising a diaphragm 17 engaged by the armature and a bellows 19 engaging the valve whereby only a small movement of the armature is necessary to effect a large movement of the valve 20. The diaphragm 17 is normally subject to the pressure in the pipe 1 through a port 29 so that the valve 20 is loaded only by the spring 21 but in charging the system, as the port is restricted the valve is held firmly to its seat by the unbalanced pressure in pipe 1, The magnet circuit includes a switch 25 normally closed by spring 24 and operable by a piston 23 in a chamber 22 normally at atmospheric pressure through restricted port 30. When, in making a brake application, the pressure reduction in pipe 1 reaches a switch 2, the initial movement of the contact 12 is effected due to upward pressure on the bellows plate 5 becoming less than the downward pressure on the upper annular area of the valve disc 9 by reason of the restricted port 6 and as soon as the valve leaves its seat the whole of the upper surface is exposed to the higher pressure and the contacts 12, 13 are thus rapidly engaged. The magnet 14 at the other end of the vehicle being thus energized the valve 20 is opened, to vent the pipe 1 to chamber 22. The pressure temporarily established in this chamber opens the switch 25 thus avoiding the breaking of the circuit at contacts 12, 13 which separate slowly by pressure equalization through port 6. The circuit of magnet 14 may be closed independently of the switch 12, 13 to effect an emergency application of the brakes by a switch 31 arranged in each vehicle.
Patent GB-1098436-A (GB)
Title: Magnetic tape cartridge for a sound recording and reproducing apparatus
IPC: G11B23/093
Filed: 1966-03-28
Abstract: 1,098,436. Tape cartridge. LOEWE OPTA A.G. March 28, 1966 [April 3, 1965], No. 16330/66. Heading G5R. A magnetic tape cartridge for a tape recorder comprises a casing 1 containing a pair of coaxially superposed reels 6, 7, a pair of guide rollers 10, 11 with their axes disposed obliquely to the reel axis, between which the tape 12 passes. an aperture 13 in the casing which allows the record/reproduce head 14 and erase head 15 to engage the tape and a screening member 18 disposed between the reels and the tape between the rollers on which are mounted a pair of pressure pads 18, 22 for urging the tape into contact with the heads and a U-shaped tape guide member 20. The guide member is mounted on a V-shaped bend 19 in the screening member. Means are provided for coupling the reels to driving means and the cartridge includes a reel braking arrangement 16, 17 which is released when the cartridge is inserted into the recorder.
Patent GB-695208-A (GB)
Title: Improvements in and relating to releasable fastening devices
Inventor: KITSON JOSHUA WILSON
IPC: F16B37/04
Filed: 1950-06-30
Abstract: 695,208. Brackets. ENGLISH ELECTRIC CO., Ltd. June 29, 1951 [June 30, 1950], No. 16389/50. Class 52(v) [Also in Groups XIII and XXV] A bracket 1 for supporting a plate member 2a comprises a wedge-shaped part 1a adapted to take into an aperture 2b in the plate, and an abutment 1d positioned so as to prevent separation of the parts when the plate is turned to the position shown. The bracket is first secured to a support by a screw &c. passing through a fixing hole 1c and the plate is then inserted angularly into the bracket as shown at 2c in underside view in Fig. 3, are rotated so that the aperture 2b passes over the part 1a until further movement is restrained by the side piece 1e and the abutment 1d. The part 1a is bent up from the bracket and the abutment 1d is punched out from the part 1b. In a modification, the abutment ld is punched out of the edge of the part lb. The device may be used to secure the least accessible corner of the evaporator of a refrigerator to the ceiling of the food compartment. According to the Provisional Specification the aperture 2b may be replaced by a groove.
Patent GB-444051-A (GB)
Title: Improvements in light dividing optical systems for colour photography
IPC: G02B27/14
Filed: 1935-06-06
Abstract: 444,051. Colour photography. HUDELEY, V., 50 Boulevard Victor Hugo, Clichy, Seine, France. June 6, 1935, Nos. 16441 and 16442. Convention dates, Sept. 5, 1934 and April 13, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 9, 1935.] [Class 97 (i)] A light - dividing optical system for pro ducing three colourrecord images with out parallax consists of a prism K having a semi-reflecting surface m<1> and a silvered surface m<2> for dividing the light incident on the prism into twc parallel beams which are receved by objectives O<1>, O<2>, and a second prism K<1> in the path of one of the beams for dividing this beam into two parts, the prism K<1> being similar to the prism K but turned through 90‹ relatively thereto. The optical paths are equalized on the object side by offsetting the objectives along their axes in relation to each other, and those on the image side are equalized by means of glass blocks V, V<1>, so that the images are formed in the same plane. A modification is described in which the two dividing prisms are united to form a single piece of glass, and three objectives are disposed on the image side of the combined prisms. Specification 12181 /00, [Class 97], is referred to.
Patent GB-495630-A (GB)
Title: Improvements relating to adjustable seats
IPC: F16D21/06
Filed: 1937-10-07
Abstract: 495,630. Adjustable seats. SLEIGH, H. L., CHESTON, A. S., and OLDHAM, F.A.M. Oct. 7, 1937, Nos. 16640/38 (divided out of 491,628), [Group XXIV], and 17253/38 .(divided out of 488,659). [Class 52 (ii)] A vertically adjustable seat, particularly for vehicles, comprises a seat frame 2, Figs. 1 and 3, having rear guide members, e.g. lugs 8, 9 in conjunction with the side members of the frame 2, which engage with stationary guides 5, in combination with stop members 21 which normally limit the movement of the frame but which can be displaced or moved to inoperative position to permit vertical movement of the frame to a position in which it can be separated from the guides 5. For this purpose the flanges forming the guides are gapped at 20, Fig. 4, and stops 21 comprising inverted T-shaped members are pivoted to the frame 2 and normally engage lugs 23 on the guides 5. When the stops are swung forwardly, the lugs 9 may pass through the gaps 20 after the frame 2 has been raised to a suitable height. Vertical adjustment of the seat frame on the guides is effected by means of a vertical screw-threaded shaft 14 mounted in the frame and passing through a nut 17 which is loosely held within an open fronted housing 18 on a cross bar connecting the guide bars 5. The shaft 14 is rotated through bevel gears 12, 13 from a shaft 10 provided with a handle 11, Fig. 1. When the seat frame is detached from the guides the nut 17 is withdrawn from the housing 18. Modified forms of the stop members 21 are described.
Patent GB-438811-A (GB)
Title: Improvements in processes for obtaining motor spirit and lubricating oils from rubber, gutta percha and similar materials
IPC: B29B17/00
Filed: 1934-06-05
Abstract: Rubber is hydrogenated at 360--500 DEG  C. used in pressure of hydrogen and in presence of molybdenum sulphide as catalyst, a lubricating oil being obtained when the reaction temperature is maintained at 360--400 DEG  C. while at 400--500 DEG  C. the product is a motor spirit 150 parts cr<\>zepe rubber and 7,5 parts molybdenum oxide supported on 32,5 parts alumina together with 5 parts sulphur are heated with hydrogen for 2 hours at 450 DEG  C. and 100 atms.  A 50 per cent yield of a spiral boiling below 200 DEG  C. is obtained. Under similar conditions, except that the temperature is maintained at 350 DEG  C., a pale yellow fluorescent oil is obtained.  The rubber may be treated dissolved in the oil produced in the process as in other solvents.ALSO:Rubber, guttapercha, balata is hydrogenated at 360--500 DEG  C under pressure of hydrogen and in presence of molybdenum sulphide as catalyst, a lubricating oil being obtained when the reaction temperature is maintained between 360--400 DEG  C. while at 400--500 DEG  C. the product is a motor spirit.  150 parts cr<\>zepe rubber and 7,5 parts molybdenum oxide supported on 22,5 parts alumina together with 5 parts sulphur are heated with hydrogen under a pressure of 100 atmospheres for 2 hours at 450 DEG  C.  A 50 per cent yield of a spirit boiling below 200 DEG  C. is obtained. Under similar conditions except that the temperature is maintained at 375 DEG  C. a pale yellow fluorescent viscous oil is obtained.  The rubber may be treated dissolved in the oil obtained or in other solvents.
Patent GB-123936-A (GB)
Title: Improvements in or relating to Electrodes.
Inventor: NEWBERY EDGAR
IPC: G01V3/02
Filed: 1918-10-14
Abstract: 123,936. Newbery, E., and Gerrard, H. Oct. 14, 1918. Locating conductors.-Relates to electrodes used for the detection of objects submerged in chloride solutions such as sea water, and consists in making these electrodes of silver or with a coating of silver, the silver surface being preferably covered with silver chloride. The electrode may be in the form of a tube or braided wire, foil, or gauze on insulating material, and may be enclosed in porous materials such as canvas or flannelette.
Patent GB-515747-A (GB)
Title: Improvements in or relating to electrical fuses
IPC: H01H85/055
Filed: 1938-06-07
Abstract: 515,747. Fusible cut-outs. FIERI, C. June 7, 1938, No. 16953. Convention date, June 4, 1937. [Class 38 (i)] The main fusible element 3, Fig. 1, of a cut-out is ruptured before reaching its melting point by a spring-pressed wedge 7 that insulates the separated ends of the element 3. Arc extinction is assisted by the provision of a small fuse 4 having a high melting point and enclosed in arc extinguishing material. For heavier currents the first rupture may be effected by the operation of a link 15, Fig. 5, attached by solder of low melting point to bridge the conductors 14 and acted on by a spring-pressed plunger 7. A second fuse 3 is ruptured by a wedge 7a and a final break effected by a small fuse 4. The fusible element 3 may be housed in a support 6 having a slot the dimensions of which limit the size of the fuse that can be inserted.
Patent GB-561029-A (GB)
Title: Improvements relating to preformed floors, roofs, walls and the like
IPC: E04B5/26
Filed: 1942-11-30
Abstract: 561,029. Floors. MORTON, B. Nov. 30,1942, No. 16966. [Class 20 (iv)] Concrete beams 1 support blocks 13 engaging projections 2 which decrease in thickness outwardly to allow the engaging parts 8 of the blocks below the projections to increase in thickness inwardly. Parts of the projections are omitted to permit insertion of the blocks, and the ends of the beams are of T-section to afford flat surfaces resting on the end supports.
Patent GB-461346-A (GB)
Title: Improvements in automatic guns
IPC: F41A5/24
Filed: 1935-06-13
Abstract: 461,346. Automatic guns. WILLIAMS, D. M. June 13, 1935, No. 17038. [Classes 92 (ii) and 119] Relates to automatic guns having bolt-mechanism designed to operate with cartridges of normal calibre and explosive intensity and in which automatic operation is effected by a movable cartridge chamber or actuator in close proximity to the rear of the barrel at the time of firing. According to the invention, the movable chamber is adapted to receive explosion gases from a ball cartridge of lower than normal intensity and has a gas contact area so designed that the subnormal ammunition effects normal operation of the gun. The actuator and barrel are arranged to prevent the rearward escape of the gases at least until after the actuator has moved rearward a predetermined distance. The invention is applicable to machine guns, automatic pistols and automatic rifles and is particularly applicable to adapting such weapons for operation with sub-calibre ammunition. Fig. 4 shows a Browning machine gun adapted for operation by sub-calibre ammunition 58 which is fed into a chamber member or actuator 52 slidable over the rear end of a fixed sub-calibre barrel 59. The actuator is connected to the usual barrel extension member 32 which serves to operate the breech mechanism. After firing, the bullet 58b leaves the cartridge case as shown, and the gases acting on the surface 56 force the actuator rearwards, escape of gas being prevented by the packing ring 67 until longitudinal grooves 57 are uncovered, when the gases escape into a chamber .66 open to the atmosphere. The rear end of the barrel is flared at 61 to equalize the pressure of gas round the projecting end 58a. of the cartridge case. Fig. 6 shows the position of the parts with the breech open. The cartridge-feed mechanism is that described in Specification 461,741. Fig. 15 shows a movable chamber or actuator 86 applied to a Colt automatic pistol of the kind described in U.S.A. Specifications 984,519 and 1,070,582. The usual large calibre movable barrel is replaced by a fixed sub-calibre barrel 82 and the movement of the actuator is limited by a projection 88 engaging a stop surface 84. Sub-calibre ammunition is fed by a magazine 100, the gun being otherwise of standard weight and construction, except for a modified ejector which is necessary for the shorter ammunition. Fig. 18 shows the application to an automatic rifle in which the actuator 110 has a loose screw-threaded engagement with the barrel 117 the movement of the actuator being limited by the tolerance of the threads.
Patent GB-185394-A (GB)
Title: Improvements in pneumatic machines for dislodging and collecting boll weevils and other insect pests from plants
IPC: A01M5/08
Filed: 1922-06-20
Abstract: 185,394. Weiss, P. B. Aug. 29, 1921, [Convention date]. Pneumatic collectors. - A machine for collecting, by scraping and suction, boll weevils from cotton plants comprises a frame 1 supported on wheels 2, 49 and carrying an engine 7 which drives a centrifugal fan 9. The suction pipe 15 is connected to a transverse pipe 16 having vertical sections 17 which are in the same planes as the wheels 2. The lower ends of the sections 17 are open at 23 and are connected, by means of flexible connections 19, to flanges 20 on groundengaging runners 21. These runners, attached to rods 26 sliding in brackets 33 and kept in engagement with the ground by springs 32, are raised from the ground by rods 31 and levers 30 keyed to a rocking shaft 29, while chains 48 ensure that forwardly extending and diverging ground-engaging fingers 36 and chains 39 carried by the runners are also raised from the ground. The machine straddles a row of cotton plants so that they are vibrated by weighted ropes 5 and the fingers 36 and chains 39 then scrape the boll weevils, which have been dislodged from the plants, to a point centrally of the path of the runner 21 so that the boll weevils are drawn through the fan 9 into the discharge pipes 41, and projected with force against the inner walls of the vertical portions 42 of the discharge pipes leading to the containers 44.
Patent GB-738700-A (GB)
Title: Process for the preparation of esters of sarmentogenin and derivatives hereof
IPC: C07J75/00
Filed: 1953-06-19
Abstract: The invention comprises 11-mono-esters of sarmentogenin and 3-dehydro-sarmentogenin, and a process for their preparation by careful hydrolysis of polyesters of glycosides of sarmentogenin to split off the sugar residue from the 3-position, leaving the 11-ester group intact, and if desired thereafter oxidizing the resulting 11-mono-ester to the corresponding 3-dehydro sarmentogenin derivative.  Specified esters which may be employed are those of the lower fatty acids, benzoyl, trifluoracetyl, carbomethyl, carbethyl and carbobenzyl.  Specified hydrolytic agents include mineral acids, alkali hydroxides, carbonates and bicarbonates, and as oxidizing agents chromium trioxide, permanganate, and aluminium alcoholate with excess of a carbonyl compound, are mentioned.  In an example sarmentocymarin is acetylated to the diacetate, which is hydrolysed with aqueous-methanolic sulphuric acid under reflux to sarmentogenin-11-acetate, and the latter oxidized with chromium trioxide-acetic acid in the cold to yield 3-dehydro-sarmentogenin-11-acetate, whose structure is confirmed by formation of the semi-carbazone.  Specification 653,480 is referred to.
Patent GB-604272-A (GB)
Title: Improvements in and relating to electro-magnetic switches
IPC: H01H50/54
Filed: 1943-10-20
Abstract: 604,272. Two-part couplings with switches. BRITISH THOMSON-HOUSTON CO., Ltd. Oct 20, 1943, No. 17237. Convention date, Oct. 24, 1942. [Class 38 (i)] [Also in Group XXXVII] An electromagneticallyoperated switch has its moving contacts carried in a block removably attached to a base carrying the circuit terminals, the base and block having co-operating contacts in the magnet circuit so arranged that this circuit is opened to release the main switch contacts when the block is being detached from the base. The moving contacts 12, 19 of the main and magnet circuits respectively are mounted independently on a slide 15 in the block 33 and the slide biassed by springs 34 to circuit opening position. The fixed main switch contacts are integral with coupling contacts 35, the enlarged ends of which pass through keyhole slots 39 in the base member 26 into engagement with terminal contacts 36, 37. As the block is moved downwards, the spring- pressed contacts 19 of the magnet circuit engage contacts 20, 21 on the base, and projections 151 on the slide 15 drop behind the forked end of a lever 29 pivoted at 30 and connected to the armature 18 of the magnet 16. Remote start and stop switches, respectively in parallel and in series with the switch 19 ... 21, serve first to energize the magnet circuit which is then maintained by closure of the switch 19 ... 21 until the stop-switch is opened. Upward movement of the block 33 disengages the contacts 20, 21, so opening the magnet circuit and allowing the springs 34 to move the slide 15 to open the main circuit ; it also disengages the slide 15 from the lever so that removal of the block is not prevented by faulty actuating mechanism. The switch is housed in a casing with hinged cover, after opening which the block 33 may be withdrawn.
Patent GB-753399-A (GB)
Title: Process of nuclear fission
IPC: G21C1/22
Filed: 1954-06-11
Abstract: 753,399. Nuclear reactors. STICHTING VOOR FUNDAMENTEEL ONDERZOEK DER MATERIE. June 11, 1954 [June 12, 1953], No. 17263/54. Drawings to Specification. Class 39 (4). In a nuclear fission process, nuclear fuel is applied in the form of a stable suspension of particles of fissile material in a carrier liquid, the particles having a maximum diameter that is smaller than 15 Á. A fraction of the suspension is continuously withdrawn from the circulating system and the carrier liquid separated out, purified and then returned to the main system.