baber/WOPTO huggingface dataset:
Patent GB-385582-A (GB)
Title: Improvements in and relating to methods of coating metal with insulating varnishes
IPC: B05D7/14
Filed: 1931-03-23
Abstract: In the process of insulating metal plates, wires &c. by coating with varnish and stoving at about 300 DEG  C., the metal is first treated to produce a coating which is more readily wetted by fatty oils than is the pure metal.  The coating may be an oxide produced by heating the metal to be varnished or by oxidation in an aqueous solution; or a sulphide coating; or an oxide or sulphide of a different metal, e.g. an iron surface may be coated with copper oxide.ALSO:Metal plates, wires, &c. are coated with a compound of the same or of another metal before applying an insulating lacquer.  The coating may be an oxide produced by heating the metal or by oxidation in an aqueous solution; or a sulphide coating; or an oxide or sulphide of a different metal, e.g. an iron surface may be coated with copper oxide.
Patent GB-1211661-A (GB)
Title: Memory device
Inventor: OHWADA ATSUSHI
IPC: G11C11/403
Filed: 1969-02-19
Abstract: 1,211,661. Integrated circuits. TOKYO SHIBAURA ELECTRIC CO. Ltd. 19 Feb., 1969 [22 Feb., 1968; 2 March, 1968], No 8900/69. Heading H1K. [Also in Division H3] A capacitive storage device (see Division H3) comprising an enhancement mode M.O.S. field effect transistor having a diode in series with the gate is formed as an integrated unit. In Fig. 3 an N<SP>+</SP> silicon substrate 20 is coated with a silicon oxide film by exposure to hot wet oxgen gas. Selected parts are removed by a photo-resist and boron is diffused into the substrate to form P layer 21. N<SP>+</SP> diffusion of POCl 3  then forms source region 22, drain region 23 and a diode cathode region 24. After a further silicon oxide layer has been added and parts removed, aluminium is vacuum deposited to form source electrode 26, drain electrode 27, cathode electrode 28, anode electrode 29 and gate electrode 30. A terminal 31 is connected to the source and the cathode is connected to the gate by aluminium films or by wire bonding. In Fig. 4 (not shown), the anode layer (40) is formed in a diffused cathode layer (24) and in Fig. 5 (not shown), the diode is formed in a separate P region (21b).
Patent GB-859895-A (GB)
Title: Improvements in or relating to apparatus for photographic printing
Inventor: ELPHICK GEORGE STANLEY
IPC: G03B27/72
Filed: 1958-03-20
Abstract: 859,895. Copying-by-scanning. RANK CINTEL Ltd. March 20, 1959 [March 20, 1958], No. 8916/58. Drawings to Specification. Class 40(3). In an arrangement for copying a photographic . transparency by directing light from a flying-spot cathode-ray scanning tube through the transparency on to photographically sensitive material and thence on to a photo-electric cell the signals produced by which control the intensity of the tube scanning beam in a negative sense to effect a marking control, a timing device is employed to ensure that a desired integral number of complete scanning cycles of the tube are effected for each copying operation. In this manner under exposure of part of the copy image which would result if the scanning terminated during part of a complete cycle is prevented. The timing device may comprise an adjustable sawtooth generator which controls the scanning tube sawtooth generator which operates at the lower of the two co-ordinate deflection rates, the arrangement being such that, at the termination of a desired integral number of cycles of the scanning generator, a pulse initiated by the adjustable sawtooth generator either suppresses the tube beam or closes an electromagnetically released shutter in the optical path between the tube screen and the transparency..
Patent GB-992262-A (GB)
Title: Apparatus for dispensing ice cream and the like
Inventor: KLACKAN LIONEL HENRY
IPC: A23G9/28
Filed: 1962-03-08
Abstract: 992,262. Dispensing liquids. NIELSONS GAIETY Ltd. June 4, 1963 [March 8, 1962], No. 8977/62. Heading A4T. [Also in Division F1] Ice cream is forced from a container 10 by fluid pressure introduced below a piston 20, through an outlet 17 controlled by a valve 18. The container has a removable cover 15 and is filled from a can by interducting air pressure into the can. Two containers 10 may be enclosed in a refrigerated insulated compartment 22 above a counter forming an insulated store for a plurality of the cans for filling the containers. The valve 18 may be replaced by a metering valve.
Patent GB-122575-A (GB)
Title: Improvements in and relating to Chucks.
Inventor: WALKER DURWARD GEORGE MALCOLM
IPC: B23B31/20
Filed: 1918-05-31
Abstract: 122,575. Walker, D. G. M. May 31,1918. Chucks.-The jaws b of a bevelclosing chuck are forced into the bevel-mouthed ring a by conicalended studs c bearing on a conical washer b<2> which again bears on the conical end of the part carrying the jaws b. The studs may bear directly on the part carrying the jaws. The studs are forced inwards to close the chuck by a bevelled ring d which rotates within a ring e pivoted at e<1> to an outer ring f. This ring has, at one side, a pin f<1> passing through a, pin f<3> mounted to rotate in a support g carried by a plate on the machine-bed, and at the other a toothed sector f<2> gearing with a pinion h which also gears with a toothed sector on the operating lever k.
Patent GB-603161-A (GB)
Title: A drawing system for mule spinning machines for scribbled wool or carded waste
IPC: D01H3/08
Filed: 1945-04-11
Abstract: 603,161. Spinning mules. TAINE, R. April 11, 1945, No. 9029. Convention date, April 10, 1943. [Class 120(ii)] A drawing system, preferably for a mule of the woollen or "condenser" type, of the kind having two pairs of drafting rollers and in which the second pair includes means for intermittently releasing the nip of the rollers on the roving so that twist may run back from the spindle point to the drafting area, has a notched regulating bar to control the feed and twist of the roving. In the preferred embodiment, an upper roller 6' is grooved to nip the roving 3 intermittently. The rollers 6, 6' may, alternatively, be separated by cams, or other means. at suitable intervals. The notched regulating bar 7 is placed near to the rollers 6, 6' in the drafting area; it may be oscillated to regulate the degree of twist running back and reciprocated to guide the slubbing away from the grooves in the roller 6<SP>1</SP> during the backing-off and winding-on periods.
Patent GB-662972-A (GB)
Title: Improvements relating to combined drying and grinding plants
IPC: F26B1/00
Filed: 1949-04-04
Abstract: 662,972. Dry grinding mills. TEMPLEWOOD ENGINEERING CO., Ltd., MARTIN, E. J. March 3, 1950. [April 4. 1949] No. 9103/49. Class 59. [Also in Groups XXIX, XXX and XXXV] In a combined drying and grinding plant including a drier A with a power driven conveyer D feeding material to a power driven dry grinding mill B, the speed of the conveyer is automatically regulated in accordance with the power absorbed by the dry grinding mill so as to correct for overloading or underloading of the mill due to the presence of too much or too little moisture in the material being treated. The mill B, Fig. 1 is driven by an electric motor 3 and the conveyer D also may be driven by an electric motor through a variable speed transmission such as the relatively adjustable belt driven cone pulleys 1, 2. The pulley 1 is adjustable to vary the speed of the conveyer through a lever 16 by a diaphragm motor 14 supplied through a line 12 with hydraulic or pneumatic pressure under the control of a valve 11. The latter is operated through a lever 7 by a bimetallic strip 5. Any variation in the load on the mill B is reflected in a change in current in the current leads 4 such current variations causing variable heating of the strip 5. In another form the mill B is driven by an internal combustion engine and the valve 11 is actuated by the engine speed governor. When the conveyer also is driven by an engine, the motive fluid supply of the engine is controlled by a direct mechanical coupling with the governor of the grinding mill engine. In Fig. 2, the conveyer D is driven by an endless belt 22 from an electric motor 20 the current controller 21 of which is operated under the control of a two-way switch 23 influenced by a solenoid 5a in the current leads 4 of the motor 3 driving the mill B. The arm 26 of the controller 21 adjusts a rheostat or the motor brush gear.
Patent GB-452877-A (GB)
Title: Improvements in or relating to amusement apparatus
IPC: G07F17/34
Filed: 1935-03-23
Abstract: 452,877. Games of chance. BRECKNELL, MUNRO, & ROGERS (1928), Ltd., Pennywell Road, Bristol, and HAWTIN, F., 19, Argyle Road, Blackpool. March 23, 1935, No. 9114. [Class 132 (ii)] [See also Group XVIII] Amusement apparatus of the type in which wheels 1, 2, 3 are set in motion after insertion of a coin and prizes are delivered if the wheels stop in winning positions is characterized by a hopper 9 to which coins, or a proportion of the inserted coins, are fed ready for delivery as prizes and by means 30, 34, 29, 27 operable by the player to release the coins in the hopper independently of the prize delivery mechanism 26. The wheels 1, 2, 3 are independently rotatable and are set in motion by a spring pawl 4 on slide 5 by operating a hand lever after a coin has been inserted. The coin, or coins, then pass to a shoot 6, deflector 7, shoot 8 and hopper 9. At predetermined times, (e.g. once every five actuations of the machine) deflection 7 is rocked clockwise so that the inserted coins pass from shoot 6 to a passage 32 and a receptacle where they are retained in the machine. Deflector 7 is rocked by pins 10 and ratchet 11 operated by pawl 14, lever 13 and rod 12, wheel 11 being turned one tooth each time the machine is operated. 15 are braking members for wheels 1, 2, 3 and are operated by the user or by a delay-action device which latter also, subsequently moves latch 20 to the left. Wheels 1, 2, 3 have holes 18 of various sizes which coact with steps 17 on a slide 16 raised vertically by spring 19 when released by latch 20. Steps 21 on slide 16 coact with a shoulder 22 on a horizontal slide 23 pulled right by a spring 24. A rack 241 on slide 23 rotates a wheel 25 rigid with a star 26 rotating past the open bottom of hopper 9, so that according to the amount of rise of slide 16, when released by latch 20, and therefore the travel of slide 23 and rotation given to star 26, a variable number of coins are removed horizontally, as prizes, from the bottom of hopper 9. Immediately below star 26 is a plate 27 normally blocking the downward movement of the coins. If a coin is inserted in shoot 30 it rocks a latch 34, 29 pivoted at 33 in falling and allows a spring 28 to pull the plate 27 to the right so that a hole 31 therein registers with the bottom of hopper 9, whereby all coins therein are delivered to the player. Movement of slide 5 to set the wheels 1, 2, 3, in motion is used to reset the delay mechanism, the slide 16, the catch 20 and slide 23 ; and when necessary the plate 27. If desired, means may be provided to close the shoot 30 and lock the plate 27 in the position shown. The coins passing down shoot 32 may then be fed to a jackpot and delivered to a player for a certain stopping position of the wheels.
Patent GB-759074-A (GB)
Title: Improvements in or relating to electrical engraving machines
IPC: B44B3/00
Filed: 1954-03-30
Abstract: 759,074. Engraving. HILL, J. W. June 29, 1955 [March 30, 1954], No. 9232/54. Class 100 (2). In an engraving machine in which the engraving is done by an electric arc between an electrode and the work, such as a small metal tool or engineering component, and wherein a master copy of a design or lettering is followed by a tracer and reproduced at a reduced or enlarged scale on the work, the tracer and electrode are vertically spaced, mounted on carriages permitting movement in spaced horizontal planes, and linked by a substantially vertical lever having a universal fulcrum at one end. The lever 13 is slidable in a ball 22 constituting the fulcrum and carried in a socket 20 vertically slidable, to adjust the reproduction ratio, in a spider 11 and clamped thereto by a screw. The lever is also slidable in a ball 23 in the electrode carriage 14, which is slidable on rods 29 themselves slidable on rods 30, and which carries the electrode 28 above and adjustable with respect to the work 19. The lever is secured to a ball 25 in the tracer carriage comprising a two-armed member 31 articulated at 32, carrying at one end the tracer 34 and pivoted at the other end at 33 to the machine frame. A holder 16 fixed to the machine base is grooved to receive blocks 18 bearing received characters. The tracer 34 is movable manually downwards by means of a finger-grip 40 against a spring into the grooves of the characters and when it moves upwards out of a groove it breaks contacts 36, 38 in the supply circuit for the electrode to avoid damage to the work. According to the Provisional Specification, the tracer carriage is of the same construction as the electrode carriage, and the lever 13 slides in a sleeve universally pivoted to the electrode carriage, while the lower end of the lever telescopes into a deep socket universally coupled to the train carriage.
Patent GB-375410-A (GB)
Title: Improvements in or relating to receiving apparatus for electric wave signals
IPC: H03D7/18
Filed: 1931-03-26
Abstract: 375,410. Wireless receiving apparatus. ROBINSON, J. and BRITISH RADIOSTAT CORPORATION, Ltd., 29, George Street, Hanover Square, London. March 26, 1931, No. 9290. [Class 40 (v).] In a super-heterodyne receiver, second channel interference is prevented by an auxiliary circuit the tuning element of which is ganged to the tuning element of the receiver. The receiver may use a low intermediate frequency as described in Specification 357,647 in order to obtain high selectivity. Fig. 1 shows a receiver including a rejector circuit 21 in the aerial circuit in series with the input circuit 10. In a modification, Figs. 6 and 7 (not shown), the auxiliary circuit is connected to the valve input in parallel with the tuned circuit and so arranged that second channel interference in the two circuits is of equal and opposite phase. Means may be provided for the separate adjustment of one of the tuned circuits to obtain an accurate balance. Fig. 2 shows the construction of the ganged condenser, the rotor 27 being insulated by the bearing 28 and the member 29. The condenser is enclosed in a screening casing 25.
Patent GB-1215771-A (GB)
Title: Control of sheet-fed printing presses
IPC: B65H9/20
Filed: 1969-02-20
Abstract: 1,215,771. Feeding sheets. SCHNELLPRESSENFABRIK KOENIG & BAUER A.G. 20 Feb., 1969 [15 March, 1968], No. 9290/69. Heading B8R. Each front stop 3 of a sheet-fed printing press is associated with two photo-cells 4 and 6 staggered by a distance 5 as shown. If the front edge 2 of a sheet 1 to be printed is not correctly positioned but not badly out of alignment, e.g. if the edge contacts one stop 3 and is one or two millimetres away from the other stop, the signal from photo-cells 4 does not trip the printing press as is usual, but allows printing to continue, the arrangement being such that the position of the mis-fed sheet is marked by a strip of paper (Fig. 2, not shown) so that after delivery from the press it can be removed from the stack of otherwise correctly printed sheets. If, however, sheet 2 is so badly positioned that it would cause the printing press to jam if fed-in to be printed, this mis-alignment is detected by the photo-cells 6 which produce a signal to stop the press.
Patent GB-401950-A (GB)
Title: Improvements relating to the conversion of ferro-phosphorus into phosphate products
IPC: C01B25/30
Filed: 1933-03-28
Abstract: In the production of alkali metal phosphates, ferrophosphorus, preferably in a comminuted state, is admixed with an alkali metal carbonate or other equivalent alkali metal compound such as the sulphate or hydroxide or mixtures thereof, the mixture is heated to reaction temperature, and the reaction product is leached with an alkaline solution, the alkalinity of which is such that the alkalinity of the resulting solution is greater than that of a normal tri-alkali phosphate solution.  The alkalinity of the leaching liquor is preferably obtained by the addition of caustic soda, this being employed in such amount that the liquor obtained on leaching preferably contains 1--2 per cent of caustic soda in excess of that contained in a solution of trisodium phosphate of the same P2O5 content.  The alkalinity of the solution is also expressed in terms of an "alkalinity factor."  Operating conditions are otherwise similar to those disclosed in Specification 398,437.  Thus, the reaction mixture may be initially moistened with say 10--15 per cent of a dilute alkali metal phosphate solution obtained subsequently in the process. Water as the moistening agent is, however, also specified. Roasting may be effected in an open hearth or rotary furnace at 900--1100 DEG  C. or at a suitable higher temperature. The hot reaction mixture should be discharged directly into the leaching liquid, which is obtained by adding alkali to water, or preferably, to the alkali phosphate solution obtained by mixing liquor from the crystallization of the phosphate with that from the first washing of the black iron oxide residue.  The phosphate liquor is drawn off from the residue, passed through a centrifugal clarifier, filtered and crystallized.  The iron oxide residue is washed with water, or with liquor derived from a second washing, the wash liquor being employed as above.  The liquor from the second washing is employed to moisten the mixture to be roasted. Reference is made to the production of sodium and potassium phosphates.
Patent GB-1120177-A (GB)
Title: Silo
Inventor: PIETSCH LEONHARD
IPC: B65D88/32
Filed: 1967-02-28
Abstract: 1,120,177. Hopper or silo. MUHLENBAU DRESDEN VEB. 28 Feb., 1967, No. 9363/67. Heading B8S. Silo apparatus comprises silos 1, 2 of which the central silo 1 is formed with a central element 7 and a pair of steps 5, each step being such that distance 10 is less than distance 12. This shape facilitates the discharge of material through the outlets 6 and 16 of both the respective silos 1, 2.
Patent GB-582219-A (GB)
Title: Improvements in or relating to variable speed gears of the expanding pulley type
IPC: F16H9/12
Filed: 1944-05-16
Abstract: 582,219. Expanding - pulley belt - gearing. FRASER & SONS, Ltd., D., and BROWN, J. S. May 16, 1944, No. 9404. [Class 80 (ii)] Opposed pairs of conical flanges H, K, and H', K' of a multiple expanding pulley, are oppositely adjusted by differential screw-threads C, E of the same hand but different pitch on an adjusting-sleeve A, of which the fine thread C is internal and the coarse thread E, of twice the pitch, is external. The pulley-flanges are all slidably keyed to a sleeve N, fixed to a driving (or driven) shaft R and adjustment is effected by turning a hand-wheel B of threadadjusting-sleeve A, which is connected to the flanges H, H' by a thrust-bearing and bolts G, and screws with is fine thread C on a fixed, non-rotating spindle D, which carries slidably and non-rotatably a sleeve F, connected to the opposite pulley-flanges K, K<1> by a thrust-bearing and bolts J, and screwing on the coarse thread E of the adjusting-sleeve A. The fixed spindle D is supported externally of the handwheel B, which carries a sprocket M for chainconnection to a similar follower pulley for simultaneous adjustment.
Patent GB-528447-A (GB)
Title: Improved process for hardening gelatine
IPC: G03C1/30
Filed: 1939-03-27
Abstract: 528,447. Hardening photographic gelatine layers. KODAK, Ltd., and MARRIAGE, A. March 27, 1939, No. 9478. [Class 98 (ii)] [Also in Group V] A gelatine layer containing a latent or visible photographic image is hardened by treatment with a processing bath, preferably strongly acid, containing a soluble compound of one of the elements of Group IV B of the Periodic Table in which the element is in the tetravalent state, for example, titanium, zirconium, or thorium. The nitrates may be used. The gelatine may have been previously hardened in a partially neutralized aluminium sulphate bath. In an example, a bath for removing the first developed silver image in the reversal process comprises potassium permanganate, sulphuric acid, thorium nitrate, and water. The compounds may also be incorporated in rehalogenizing baths and baths for the removal of colloidal silver from gelatine layers forming part of colour photographic material. The concentration of the compounds may be of the order of decinormal. The layers to be treated may be filter, antihalation, intermediate, or silver halide emulsion layers. In multilayer material only one or two of the layers may be hardened. The Provisional Specification refers also to the use of alkali titanates.
Patent GB-526867-A (GB)
Title: Improvements in or relating to parallel cylinder engine mechanisms
IPC: F01B3/02
Filed: 1939-03-27
Abstract: 526,867. Reciprocating pumps for liquids. HALL, E. S. March 27, 1939, No. 9572. Drawings to Specification. [Class 102 (i)] [Also in Groups XXVI and XXVII] In a swash plate or like fluid pressure engine or pump, especially a Diesel engine, comprising two facing sets of parallel cylinders having common double ended pistons and disposed about a main shaft which carries the driving mechanism in the space between the two sets of cylinders, the mass of the pistons is so determined for the required speed, that the peaks of the resultant thrust on the mechanism are about half as heavy and twice as numerous as the peaks of the fluid pressure.
Patent GB-945516-A (GB)
Title: Process for the preparation of diallylic esters of phthalic acids
IPC: C07C69/83
Filed: 1961-03-16
Abstract: Diallylic phthalates are prepared by simultaneously reacting a phthalic acid or anhydride thereof with sodium carbonate and an allylic halide in the molar ratio 1:1:2 in the presence of a tertiary amine or a quaternary ammonium salt as catalyst and under substantially anhydrous conditions. In an example a mixture of phthalic anhydride, sodium carbonate, methallyl chloride and triethylamine is refluxed for 15 hours, cooled, filtered to remove sodium chloride, heated to remove unreacted methallyl chloride and finally distilled to give dimethallyl phthalate. Diallyl phthalate and diallyl isophthalate are prepared in further examples the further reactants and catalysts specified being isophthalic acid; allyl chloride; methyldiethylamine, allyltriethylammonium chloride, dodecyltrimethylammonium bromide and cetylbenzyldimethylammonium chloride.  Hydroquinone (antioxidant) and 2,21-methylenebis (4-methyl -6-tert-butylphenol) (polymerisation inhibitor) are also present in the reaction mixture in some examples.
Patent GB-494400-A (GB)
Title: Improvements in wrapping machines
IPC: B65B11/12
Filed: 1938-03-30
Abstract: <PICT:0494400/III/1> A device for applying adhesive or solvent to a flap on a packet comprises a container 110 mounted on spindles 111 for oscillation into and out of the applying position.  A wick 113, of chamois leather, is doubled over a support 113a in the nozzle 112, the ends lying in the adhesive.