baber/WOPTO huggingface dataset:
Patent GB-229310-A (GB)
IPC: F16F9/02
Filed: 1925-02-11
Abstract: 229,310. Davidescu, H. C. Feb. 11, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Pneumatic and hydraulic springs; piston packing. - A hydro-pneumatic shock-absorber for vehicles in which a relatively large downward movement due to shock results in a relatively small compression of the air, comprises a cylinder a telescoping into a liquid-containing cylinder 2 and communicating with a relatively large air chamber 1, the liquid level being normally situated at the upper end of the cylinder a, in Fig. 1. The lower end of the cylinder is sealed by rings 8, 9 and packing 11 carried by a member 3 screwed into the cylinder a, and the flow of liquid through the passage 12 is controlled by a perforated plate-valve 5. Shocks transversely of the vehicle are cushioned by a piston 24, Fig. 3, mounted in the cylinder 2 and provided with packing similar to that of the cylinder a except that the ring 8 is replaced by a cup-shaped member 15. Shocks longitudinally of the vehicle are absorbed by connecting the part 1 to a bracket 17, Fig. 5, carried by the vehicle frame, by links 18 pivoted to the bracket 17 and part 1 at 20, 19 respectively and swinging in longitudinal planes.
Patent GB-490672-A (GB)
Title: Improvements in and relating to low frequency amplifiers and the like
IPC: H03G7/04
Filed: 1937-02-09
Abstract: 490,672. Valve amplifying circuits. PYE, Ltd., (formerly PYE RADIO, Ltd.), and CALLENDAR, M. V. Feb. 9, 1937, No. 3856. [Class 40 (v)] In a low-frequency amplifier, voltage feedback to the input is caused to vary with the output by feeding back the voltage from a potential divider which is connected across the output, and which includes an element having a non-linear voltage-resistance characteristic, such as an electric incandescent lamp. In the Figure voltage is fed back from one diagonal of a bridge, the arms comprising the three linear resistances R5, R6, R7, and the filament of an incandescent lamp L, the load circuit LS being taken from a split secondary. The resistance R6 may be a further lamp. In Fig. 1 (not shown) resistances R6, R7 are omitted, and the elements R5, L are connected across the load circuit LS. The system may be used either for volume expansion or compression and may be. applied to a public address amplifier. Reference has been directed by the Comptroller to Specification 479,485.
Patent GB-348141-A (GB)
IPC: B05B7/08
Filed: 1930-02-05
Abstract: 348,141. Stencilling - apparatus. KRAUTZBERGER, A., 28, Bahnhofstrasse, Holzhausen, near Leipsic, Germany. Feb. 5, 1930, No. 3920. Convention date, Aug. 8, 1929. [Class 100 (ii).] The Specification as open to inspection under Sect. 91 (3) (a) describes a stencilling-apparatus comprising spray-producers 48 mounted above stencils 51 below which a web 50 is intermittently moved; the sprayers are fed from a tank 14 and supplied with compressed air through pipes 53. Cams K actuate rods 24 to regulate the supply to the sprayers. A modification is also described in which the sprayers are mounted directly on the liquid tank. This subject-matter does not appear in the Specification as accepted.
Patent GB-664759-A (GB)
Title: Valve for controlling hydraulically-operated chucks and feed mechanisms on lathes or like machine tools
IPC: B23B31/30
Filed: 1949-02-14
Abstract: 664,759. Interconnected valves. WARD & CO., Ltd., H. W., and HOOSON, G. C. Feb. 10, 1950 [Feb. 14, 1949], No. 3950/49. Class 135. A manually-operable valve for controlling the actuating mechanism of a chuck and the work-feeding mechanism comprises a body part a having passages b, c leading respectively from and to a fluid-supply pump, and passages d, e leading to the chuck-actuating and work-feeding mechanisms respectively, the valve also comprising a rotary cylindrical control member g having an axial bore h communicating with the passages b, c, and radial passages i and peripheral grooves j which can be moved into and out of communication with the various passages in the bodypart. A hand lever k is pivoted to the outer end of the member g, and in the bore h is a slidable cylindrical plug m controlling an adjacent radial outer passage leading to the passage c. The chuck is actuated to grip the work when the member g is in one of its limiting positions, determined by the engagement of a stop peg n with a segmental peripheral groove therein, and the passage c is closed by the plug m. To release the chuck, the hand lever is first moved about its pivot to cause the plug to open the passage c, and then the member g is turned to its other limiting position, whereupon the hand lever is moved about its pivot to cause the plug to re-close the passage c. Pressure fluid can now pass to the chuck-actuating mechanism for releasing the chuck, and also to the work-feeding mechanism for advancing the work through the chuck. On returning the hand lever to its initial position, the chuck is caused to regrip the work and the work-feeding mechanism is put out of action.
Patent GB-594633-A (GB)
Title: Improvements relating to the launching of flares and flash devices from aircraft
IPC: B64D1/02
Filed: 1945-06-06
Abstract: 594,633. Aircraft flares. ROE & CO., Ltd., A. V., and BEARDSHALL, G. June 6, 1945, No. 3986/47. Divided out of Complete Specification of 590,364. [Class 9 (ii)] [Also in Group XX] A photo-flash container z when launched out of a chute on the aircraft actuates, by means of a cable 4, a switch to put a camera in action, the return of the switch-operating mechanism being delayed by an inertia mechanism so that the camera is maintained in action for the desired length of time. The switch is operated by means of a stop 8 on the cable which engages a pin on a rack which operates the switch through a spring. The rack, by means of a ratchet and gearing drives a heavy fly-wheel which provides the inertia delay. Specification 590,364 is referred to.
Patent GB-641234-A (GB)
Title: Vehicle jack
IPC: B60S9/12
Filed: 1947-02-11
Abstract: 641,234. Cross heads. McCLURE, R. H. Feb. 11, 1947, No. 3987. Convention date, March 14, 1946. [Class 122(i)] [Also in Group XXX] A hydraulic jack adapted to be permanently secured to a vehicle near one of its road wheels has two cooperating cylinders 10, 15 arranged to extend relative to one another on the introduction of hydraulic pressure fluid therebetween, the fluid being retained by a sliding sleeve 16 secured to the cylinder 15. This cylinder 15 is fluted longitudinally to form guideways for lugs 20<SP>1</SP> on a plate 20 secured to the cylinder 10. Secured to, and sealing the lower end of, the cylinder 15 is a ground engaging foot 25 so shaped that when in operation it will not contact the deflated tyre 30.
Patent GB-110102-A (GB)
Title: Improvements in Acetylene Gas Generators.
Inventor: MARGRETH JOSEPH
IPC: C10H9/00
Filed: 1917-03-19
Abstract: 110,102. Margreth, J. March 19, 1917. Regulating head of liquid directly; solid in separate charges in generator.-A gasbell b in which is fitted a generator c is adapted normally to rest on the base of the tank a, and to float only when excessive production of gas takes place. The feed of water to the generator is independent of the movement of the gas-bell. The generator c, supported by a bar c<1> in the bell b, comprises a series of trays f, and has a water inlet d behind a partition e which leads the water to the bottom. The accumulation of gas in the bell b causes the level of water to be forced below the inlet d before the bell floats. The upper part of the generator projects into a domed extension b<1> of the bell to prevent water passing over the upper edge. The generator may be fitted into a second bell either rigidly connected with the gas-bell b at the upper end by a pipe union, or sliding into an open ended tube supported in the cover of the gas-bell. The inner bell may be surrounded by a second bell which receives after-make of gas and passes it into the main gas-bell.
Patent GB-510884-A (GB)
Title: Process for the production of silver halide emulsions for colour photographic purposes
IPC: G03C7/388
Filed: 1938-02-09
Abstract: 510,884. Photographic silver halide emulsions. GASPAR, B. Feb. 9, 1938, No. 4010. Convention date, Feb. 20, 1937. [Class 98 (ii)] Insoluble or slightly soluble dyestuff components are incorporated in photographic silver halide emulsions or in the materials from which the emulsions are formed, in the form of soluble derivatives which are split up by hydrolysis in the emulsion prior to exposure. Suitable derivatives are the bisulphite and aldehydebisulphite addition products, the #-sulphonic acid salts of amino compounds and the acid esters of phenolic coupling components. Precipitating agents for the dyes may be included in the emulsion. Amines, such as benzidine, #- naphthylamine, toluidine, or dianisidine may be used in the form of methyl sulphonic acid salts e.g. benzidine dimethyl disulphonic acid or as sulphaminic acid salts e.g. #-naphthylamine sulphaminic acid. Phenol, a- and #- naphthol and alphadinaphthol may be used in the form of sulphonic acid salts or as esters of dibasic organic acids, e.g., thymol-succinic acid. Acetoacetic acid esters may be used in the form of bisulphite addition compounds. Other examples given are the bisulphite compound of 3-nitrobenzaldehyde which yields a red dye with dihydrazine-stilbene-disulphonic acid, and the dimethyl-di-w-sulphonic acid sodium salt of Diazo Light Yellow. The splitting up may be effected with dilute alkali, if desired in the presence of a wetting agent such as sulphonated castor oil soaps, fatty acid sulphonates, salts of cholic acid, lignon-sulphonic acid salts, naphthalene sulphonic acid salts, and sapamines. Specifications 15055/12, 298,979, [both in Class 98 (ii)], 416,566, 416,660 and 496,559 are referred to.
Patent GB-864191-A (GB)
Title: Improvements in and relating to fifth wheel couplings
IPC: B62D53/12
Filed: 1958-02-07
Abstract: 864,191. Fifth wheel vehicle couplings. DAVIES MAGNET WORKS Ltd., and DAVIES, P. M. Feb. 6, 1959 [Feb. 7, 1958], No. 4157/58. Class 103(5). A fifth wheel coupling comprising a plate 1 mounting king pin jaws 2 pivoted at 3 and a spring pressed plunger 6 adapted to enter narrowing recesses 5 in the jaws 2, is provided with means for locking the plunger 6 in the operative position. An arm 10 pivoted at 11 to the plate 1 is pin connected at 12 to the plunger 6 which is provided with a lock engaging boss 21, and a lug or recess 6b engageable when the plunger is raised by a nose 6c on a' pivoted spring loaded lever 6d. A bridge 13 on the plate 1 provides an angled guideway 15 for a slidable locking bar 16 which may be pulled outwardly by a handle 17 against a spring 18. The boss 21 on the plunger 6 may be engaged in the locked and unlocked positions by the end 22 of the locking bar 16 as shown in Figs. 1 and 2 respectively. To unlock the coupling from the Fig. 1 position the lever 17 is first pulled to withdraw the bar 16 and engage a stop 16a thereon with a nose 23 on a pivoted bell crank lever 24. The arm 10 is then pivoted clockwise until the lug 6b and the plunger 6 are held against the spring 7 by the pivoted lever 6d. As the arm 10 is so moved a pin 27 thereon contacts the other arm 26 of the bell crank 24 to pivot the lever and release the stop 16a from the recess 23. The released bar 16 then moves on the guide 15 until its end face 28 abuts the side 29 of the boss 21 on the plunger 6. When the king pin leaves the now unlocked jaws, the jaws pivot to an open position and rotate the lever 6d which releases the, plunger and allows it to move downwardly and abut the end faces 5b of the jaws as in Fig. 2. When recoupling takes place the king pin abuts the jaw surfaces 4a, pivots the jaws to a closed position and permits the plunger to enter the recesses 5, the boss 21 moving downwardly so that the bar 16 may snap into locking position above it as in Fig. 1.
Patent GB-607739-A (GB)
Title: Improvements in oil purifying plants for internal combustion engines, gas or steam turbines and the like
IPC: C10M175/00
Filed: 1946-02-11
Abstract: <PICT:0607739/III/1> In an oil purifying plant for internal-combustion engines &c. wherein the lubricating oil is freed from water &c. by means of a centrifugal separator, a collecting vessel or tank is provided for collecting the heavier components discharged from the centrifuge and is adapted to return any oil, which may have collected therein, to the inlet side of the centrifuge or to an oil tank arranged in front of the centrifuge.  The oil is therefore prevented from leaving the system, thus avoiding the draining of the engine's oil tank with the lubricating system which may occur when the water seal of the centrifugal separator disappears for any reason, the oil then discharging through the water outlet thereof.  The tank for collecting the separated oil, in the embodiments described, is the same as the engine's oil tank, the systems being continuously operating.  In one such embodiment, the impure oil from the lower part of the oil tank 1 is fed through a pipe 2 to the centrifuge 3, and the treated oil is returned through the outlet 4 and pipe 6 to the upper part of the oil tank 1.  Water &c. and any oil discharged through the outlet 5 is collected in a vessel 7 where it stratifies, the oil overflowing through outlet 9 to the oil tank 1 and the water being periodically drained off through valve 8.  In a modified embodiment, the valve 8 is automatically operated by a float which is influenced only by the heavier component.  In a further modification, the bottom outlet is closed by a liquid seal of the heavier component formed by a dividing wall in the vessel 7 spaced from the bottom thereof.
Patent GB-746302-A (GB)
Title: Improvements in or relating to electric vulcanising outfits
IPC: B29C35/00
Filed: 1954-02-13
Abstract: 746,302. Electrically heated vulcanizers. DUPONT, R. Feb. 13, 1954, No. 4287/54. Class 39(3). [Also in Group V] An electric vulcanizer comprises an arm 12 slidingly mounted on a rod 10 secured in a pivoted shaft 8, the arm being urged upwardly by a coil spring 11 into engagement with a handwheel 13. The front end of the arm carries a heating unit 22 comprising a resistance 26 mounted between an insulating member 27 and a flanged disc 24, the unit being arranged to have limited rocking movement. The rear end of the arm is guided by a pair of vertical parallel flanges formed on the main supporting member 1 which also has an integral plate 4 carrying a rubber disc 5. A U-shaped resilient frame 36 for holding the article being treated in position on the disc 5 moves downwardly at its closed end and is provided with a guide member 38. The arm 12 and unit 22 are shown in their operative positions, the rear end of the arm 12 bearing on a rockable stop member 30. To swing the heating unit clear of the rubber disc 5, after unscrewing the handwheel one or two turns, the stop 30 and the arm 12 are pivoted rearwardly. An article to be vulcanized is accurately positioned by the semi-circular portion 39 of the guide 38 which is then swung clear of the heating unit and disc 5.
Patent GB-1453226-A (GB)
Title: Apparatus for the treatment or processing of histological and other specimens or apparatus
IPC: B05C3/02
Filed: 1974-01-30
Abstract: 1453226 Coating apparatus NEWMANHOWELLS ASSOCIATES Ltd 15 Jan 1975 [30 Jan 1974] 04307/74 Heading B2L [Also in Division G2] An automatic immersion apparatus (Fig. 1) comprises stacks of receptacles 1, 2, 3, 4 for holding e.g. staining solutions; a holder 9 for the object (e.g. slide) to be immersed; means for moving the receptacles out of the stacks and means for advancing the holder 9 towards and away from a receptacle moved out of the stacks, whereby the object may be immersed for a predetermined time in liquids carried by the receptacles. A wash bath 10 may be provided. In one form (Fig. 8) a 6 by 4 array of tanks 13 are provided, any tank being movable out of the array by means of an electromagnet which is moved by a screw 30 and nut mechanism powered by motor 33. The slide carrier 38 is moved along the rows by a screw and nut mechanism 22, 23 powered by motor 21 and is moved vertically by motor 27 via chains 28.
Patent GB-764779-A (GB)
Title: Improvements in or relating to rotary furnaces
Inventor: BORGNON JEAN
IPC: F27B5/04
Filed: 1955-02-14
Abstract: 764,779. Coating with metals. DIFFUSION ALLOYS, Ltd. Feb. 14, 1955, No. 4331/55. Class 82(2) [Also in Group XII] A rotary retort furnace for the heat treatment of small or medium size metal objects, e.g. for cementation, white annealing, nitriding or chromizing, comprises a refractory brick chamber 1 enclosing a cylindrical rotary retort 3, and a removable chamber 7 which is slid axially into the retort, the chamber 7 being closed by a cover 11 screwed against a fluidtight packing 12 resting on a flange 10. A hollow driving strait 5 attached to the retort 3, which is seated on rollers 4, forms a housing for a temperature measuring instrument, and engages a recess 9 formed in the chamber 7. A sheath 18 formed with openings 19 is welded to the recess 9 and engages a tube 15 formed in a hollow chamber of considerable length l attached to the cover 11, the said tube being opened or closed by a valve 16. A further tube 20 for the supply of atmosphere gas, e.g. a reducing or halogenated gas, extends through the valve 16, the tube 15, and the sheath 18 having an open end near the openings 19. The removable chamber 7 is made of good heat conducting material, e.g. metal or silicon carbide, and may be positively driven from the shaft 5 which may be of polygonal cross-section. 'The chamber is removed from the furnace for cooling purposes and is replaced by another charged container. In chromizing steel articles using the aforementioned furnace and the diffusion method disclosed in Specification 646,637, the articles may be packed in a mixture of 66 parts by weight of fine ferrochromium, 66 parts of chromium, 33 parts of alumina, and 0.2 part of ammonium iodide. The articles are treated at 900‹C. for 4 hours with the retort revolving at 3 revs./min. The sheath 18 and tube 20 are not required in this instance, the valve 16 being kept open while the air in the chamber 7 is partly expelled and closed during the heating and cooling process.
Patent GB-589100-A (GB)
Title: Improvements in or relating to smooth bearings for rotary shafts
IPC: F16C21/00
Filed: 1945-02-21
Abstract: 589,100. Bearings. TAREX SOC. ANON. Feb. 21, 1945, No. 4366. Convention date, May 26, 1944. [Class 12 (i)] A plain journal bearing with an intermediate bush rotated in the same direction as the journal by means of a transmission from the journal has one at least of the surfaces of such bush made of conical form and means are provided for axially adjusting such bush relative to its co-operating fixed bush. An epicyclic gear or the slower running cage of a ball bearing may be used for the drive transmission from the shaft to the bush. A hollow shaft 4 runs in an intermediate bush 5 having a conical exterior co-operating with an internally cored fixed bush 3 secured in the support housing 1 by a nut 2. The shaft is located axially by a collar 8 held between a ball thrust bearing 6 butting on the fixed bush 3 and a flanged sleeve nut 9 screwed on to fixed bush 3. The intermediate bush 5 has at the broader end a flange 22 which is apertured to act as a ball cage for the balls 21 which bear against the end of the fixed bush 3 and are caused to revolve around the same by a member 10 keyed on the shaft and having a spring- urged sleeve 17 to press on the balls 21. It will be appreciated that the ball cage formed by the flange of the intermediate bush will rotate at half the journal speed and accordingly a ball thrust bearing 7 is provided between the member 10 and the end face of the intermediate bush 5. Wear between the bushes is taken up by adjusting the member 10 axially by means of nut 11. A modification is described in which the intermediate bush is rotated by an epicyclic gear comprising pinions on the bush which roll around an internally toothed rim of the fixed outer bush. The shaft journal of this modification has a cone bush thereon and the intermediate rotated bush is therefore conical on both its interior and exterior Figs, 2 and 3 (not shown). The rotated bush 5 may be of bronze with the shaft 4 and fixed bush 3 of hardened steel.
Patent GB-657380-A (GB)
Title: Feeding means for scrap steel electro-magnets
IPC: H02K23/02
Filed: 1949-02-18
Abstract: 657,380. Control systems for electromagnets; exciting dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 18, 1949, No. 4458. Convention date, March 13, 1948. [Classes 35 and 38 (iv)] In a control system to operate lifting electro. magnets, each magnet 1 is supplied from a D.C- generator 2 having three field windings, viz., a shunt winding a, a series winding c in opposition to the shunt winding and a separately fed winding b helping the shunt winding, the magnetization and the demagnetization of the magnet 1 being attained by the switching " on " or " off " of the current in the winding b. The magnitude of the current fed to the magnet is maintained constant irrespective of the thermal condition of its winding by arranging the shunt winding a so that the resistance line coincides with the straight part of the magnetization curve of the generator. When a push-button 5 is actuated a resistance 6 is put in series with the winding b, the current in the magnet drops down with the result that scrap loosely attracted by the magnet will be dropped and when the switch 4 is open, so that no current flows in the winding b, the P.D. of the generator rapidly decreases because the M.M.F. of the winding c preponderates over that of the shunt winding a and will even cause a reversal of polarity causing immediate dropping of the remaining attracted scrap. With the switch 4 closed and the resistance 6 shorted by the push-button 5 the combined M.M.F.'s of winding a and b preponderate over that of c and a steady predetermined value of current flows to energize the magnet 1:
Patent GB-362243-A (GB)
Title: Improvements in or relating to radio and similar high frequency receivers
IPC: H04B1/16
Filed: 1931-02-12
Abstract: 362,243. Valve detecting circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Roberts, W. van B. ; 155, Hodge Road, Princeton, New Jersey, U.S.A.) Feb. 12, 1931, No. 4462. Convention date, Feb. 12, 1930. [Class 40 (v).] In order to prevent disturbances in the detector stage of a radio receiver, an indirectly-heated valve is employed the heater being energized by the anode current of the valves, derived from a source of smoothed pulsating direct current. The Figure shows a known receiving circuit, in which the equipotential cathode of the detector 12 is energized by rectified and smoothed alternating current from transformer T, rectifiers 2, 3 and circuit C1, C2, L, which constitutes the anode voltage supply for the set. The heater 20 is connected in the return lead 5 of the supply circuit; if the total current passing is excessive a variable resistance P<1> is shunted across the heater ; or if the current is insufficient, the load is increased by a potentiometer P which may be utilized for screen potentials for the valves 10, 11. Alternatively the heater may be designed for the normal current passed or for the full rectified supply voltage, in which case it is connected directly across the circuit 1, 5.