baber/WOPTO huggingface dataset:
Patent GB-1053724-A (GB)
IPC: H04L17/00
Abstract: 1,053,724. Telegraphy. SCM CORPORATION. March 18, 1963 [April 3, 1962], No. 29954/65. Divided out of 1,053,721. Heading H4P. The descriptive matter is equivalent to Specification 1,053,721. The claims relate to the relationship of the magnetic tape recorder with the associated read and write circuits.
Patent GB-1053910-A (GB)
IPC: C01B3/38
Abstract: 1,053,910. Reforming catalysts. BADISCHE ANILIN- & SODA-FABRIK A.G. Aug. 18, 1965 [Aug. 19, 1964], No. 35370/65. Heading B1E. [Also in Division C5] A calcined catalyst for use in the catlytic steam reforming of liquid hydrocarbons is made as follows:- 32.6 Kg of MgO is introduced into 100 Kg of nickel nitrate solution containing 13.4 Kg of nickel, which is thus precipitated as nickel hydroxide. The mass is dried and roasted at 700‹C., and 4 Kg of MgO and 13.4 Kg of gamma Al 2 O 3  added. The mass is mixed, first dry, then with water. and subsequently pelleted. The pellets are calcined at 1100‹C.
Patent GB-1226430-A (GB)
IPC: C09K23/00
Filed: 1968-06-17
Abstract: 1,226,430. Testing for flaws or cracks. MAGNAFLUX CORP. June 17 1968, No.28807/68. Heading G1S. [Also in Divisions B1 and C3] A test piece is tested for surface flaws by flooding with a liquid penetrant containing a visible or fluorescent colouring material, draining off excess and applying a novel emulsifier composition (see Division B1 or C3) which forms a film in static contact with the underlying film of penetrant. After some time the latter film is emulsified but not the portion of penetrant lodged in the flaws. The test piece is then washed and dried and dipped into a developer consisting of, for example, a dry mixture of silica aeroqel carrier and talc or other pigment. The non-adhering powder is blown off and the penetrant remaining in the flaws is rendered more visible. If a visible dye was used, inspection is under "white" light; with a fluorescent dye, inspection is under so-called "black" light.
Patent GB-1227068-A (GB)
IPC: C02F1/04
Filed: 1969-10-06
Abstract: 1,227,068. Distillation apparatus; electrically-heated type. HERAEUS-SCHOTT QUARZSCHMELZE G.m.b.H. 6 Oct., 1969 [4 Oct., 1968], No. 49039/69. Heading B1B. [Also in Division H5] A thermally-sensitive member 22 is arranged outside the evaporator vessel 1 of an electrically-heated distillation apparatus, but adjacent the heating element 3, such that it cuts off the current supply to the element 3 upon failure of either the supply of liquid 20 for distilling or of cooling water for the cooler 7, the infra-red radiations from the element 3 passing through the wall of the vessel 1, which is of opaque fused silica, transparent fused silica or glass. A second thermally-sensitive member 22' acts similarly on an upper heating element 3, if the apparatus is of the two-stage type. Members 22, 22', are of bimetal or other heat conducting material. Member 22 may alternatively be situated in the inlet tube 17 to vessel 1, below the connection of the overflow tube 21 and tube 17, Fig. 2, (not shown). Member 22 may be situated on the outer wall of evaporator vessel 1 or up to 5 cm away.
Patent GB-1227541-A (GB)
IPC: G06F11/08
Filed: 1968-04-16
Abstract: 1,227,541. Digital data transmission. MOHAWK DATA SCIENCES CORP. 16 April, 1968 [5 May, 1967], No. 17968/68. Heading H4P. In a digital data transceiver a store and a shift register are used both in transmission and reception, the register acting as a parallelserial or serial-parallel converter as required and being stepped by an oscillator which is synchronized by transitions in the received data. It is arranged that there can be no sequence of more than 4 like bits in the transmitted signal. Data from a keyboard is written in to a magnetic tape from which it passes to the store, e.g. a magnetic core store. The store passes parallelbit signals to the register. In the receive mode parallel-bit signals from the register pass to the store, the store feeding a tape memory. Data is transmitted in 8-bit serial code (alphabetic code) or 4-bit serial code (numeric code). The register is associated with circuitry which converts 6-bit parallel signals from the store to the required 8-bit form by placing in cells 3 and 7 of the register bits which are the inverse of those in cells 2 and 6, respectively. The circuitry also converts those 4-bit binary code signals read from the store, and which represent the decimal numbers 0-9, to 4-bit signals having less than 3 successive like bits. These conversions ensure that there is no sequence of more than 4 like bits. Inverse conversions are employed in the receive mode. Each transmitted byte contains only 8-bit signals or only 4-bit signals, and is preceded by a special 8-bit signal, repeated several times, which indicates which coding is to follow. If the receiver detects at least 3 such special signals it sends an acknowledgement to the remote transmitter. In response to this the transmitter sends a readying signal which enables the receiver to receive the byte of alphabetic or numeric code signals. At the end of the byte the transmitter sends a number indicating the number of 1-bits in the byte. This number is compared with the number of received 1-bits. The receiver also checks that there is no sequence of 3 like bits and no inadmissable code combination (decimal 10-15) in any numeric signal, and that bits 2 and 3 and bits 6 and 7, respectively, in each alphabetic signal are dissimilar. The signals undergo reconversion to 6-bit and 4-bit form and are then stored. If no error is detected the contents of the store is transferred to tape and the receiver stops sending to the remote transmitter a supervisory signal transmitted during reception. Thereupon the transmitter reads the next byte from the tape to the store. If, on the other hand, error is detected the supervisory signal does not stop and the transmitter repeats the last byte.
Patent GB-1231015-A (GB)
IPC: A61B1/005
Filed: 1968-07-22
Abstract: 1,231,015. Endoscopes. OLYMPUS OPTICAL CO., Ltd. 22 July, 1968 [21 July, 1967; 22 Sept., 1967], No. 34812/68. Heading A5R. An endoscope, particularly adapted for use in the bronchi, comprises a control housing, an elongated flexible tube, and a forward end portion containing a stiffening stay, a control mechanism controlling wires for movement of the forward end portion in a desired direction, and into a desired radius of curvature, being located in the control housing. The forward end portion is capable of curvature within the angle (A), Fig. 11, (not shown) by movements of the control mechanism effected through control wires 38, 39, Fig. 12, slidably fitting into non-contractable tubes 40, 41, the tubes being composed of tightly helically coiled wires and fixed at the control housing and the forward end portion. An elongated stay 37 prevents contracton of the forward end portion when curvature takes place. The forward end portion includes a lens barrel 30 containing a cover glass 31, an objective lens 32 opposedly related to an observational optical fibre bundle 34, and an illuminating optical fibre bundle (35). An alternative embodiment, Fig. 3, discloses a three control wire forward end portion control system, enabling the forward end portion to be curved in any direction. The wires 17, 18, 19 are connected to manually rotatable discs 20, 21 within the control housing and enclosed in non-contractible flexible tubes (25, 26, 27), Fig. 4, (not shown). A flexible stay (16) is also included to prevent contraction of the forward end portion. An observation optical fibre system is also includes comprising an objective lens 5, and an ocular 7, opposedly related to opposite ends of a fibre bundle 6. An illuminating optical fibre system 8 is also incorporated. In addition, a liquid injection tube :10 is included for introducing anaesthetic, for instance, into the bronchi, and a forceps introduction tube 9, from which the forceps may be withdrawn and a sucking device attached to remove phlegm &c from the bronchi. A coarsely helically wound steel strip (28), Fig. 7 (not shown) may be provided around the flexible part of the forward end of the tube 9 to prevent the tube closing when the forward end portion 3 of the endoscope is bent.
Patent GB-1231641-A (GB)
IPC: G01N27/82
Filed: 1968-02-13
Abstract: 1,231,641. 641. Electromagnetic flaw detector. S.T.D. SERVICES Ltd. May 13, 1969 [Feb. 13, 1968], No.7045/68. Heading G1N. In an eddy-current flaw detector the sample is simultaneously submitted to a permanent magnetic field greater than 800 oersted to reduce the permeability and increase the depth of penetration of the A. C. field. As shown a tube 14 is guided in sleeves 13 between the pole-pieces 11 of permanent magnets. An exciting winding 15 is arranged between the sleeves and may (or may not) include a separate detector winding connected e. g. in a bridge or balanced circuit.
Patent GB-1231707-A (GB)
IPC: C04B35/50
Filed: 1969-03-13
Abstract: 1,231,707. Piezoelectric ceramics. TOKYO SHIBAURA ELECTRIC CO. Ltd. 13 March, 1969 [15 March, 1968; 15 Aug., 1968; 23 Aug., 1968], No. 13377/69. Heading C1J. Piezoelectric ceramics consist of a solid solution of the components Pb(SbNb) 0 . 5 O 3 , PbTiO 3  and PbZrO 3  together with 0À1-3 wt. per cent of ThO 2  and/or CeO 2 , 0À01-2% Cr 2 O 3  or 0À1- 2À5% NiO and/or CoO.
Patent GB-1239460-A (GB)
IPC: B01D3/40
Filed: 1968-11-06
Abstract: 1,239,460. Acrylonitrile, separation from acetonitrile. NITTO CHEMICAL INDUSTRY CO. LTD. 6 Nov., 1968 [8 Nov., 1967; 30 April, 1968], No. 52639/68. Heading B1B. [Also in Division C2] Acrylonitrile is separated from an aqueous solution containing acrylonitrile and acetonitrile by submitting the solution A to extractive distillation in column 1' using water as extracting agent and withdrawing acrylonitrile (together with some water) as vapour B from the top of the column; the aqueous liquor withdrawn from the base of column 1' is introduced into stripping column 2', which is operated under elevated pressure e.g. 0.5 to 5 kg/cm<SP>2</SP> gauge, and the overhead vapours (a mixture of acetonitrile and water) are condensed in condenser 3' by heat-exchange with a cooling liquid which is thereby caused to boil and, at least partly, vaporize. In a preferred embodiment, as shown, the cooling liquid for condenser 3' is liquor withdrawn through pipe 10' from a middle section of column 2'. The vapours formed therefrom are introduced through pipe 11' into the lower section of column 1', and the non-vaporized liquid is returned to column 2' through pipe 12'. The aqueous liquor withdrawn from the base of column 2' is submitted to pressurereduction in vessel 4'; the vapours so formed are introduced through pipe 8' into the lower section of column 1', and the residual liquor is introduced through pipe 9' into the upper section of column 1'. In a modified system, the liquor from the base of column 2' is used as cooling liquid for condenser 3'. In another modification, some of the liquor withdrawn from the base of the extractive distillation column is used as cooling liquid for the condenser attached to the stripping column. The initial feed mixture may be derived from the catalytic ammoxidation of propylene or acrolein; and the residual cooling liquid from the condenser may be used to absorb the gases from the reaction zone.
Patent GB-1257985-A (GB)
IPC: F26B5/06
Filed: 1969-04-28
Abstract: 1,257,985. Freeze-drying apparatus. GENERAL FOODS CORP. 28 April, 1969 [26 April, 1968], No. 21631/69. Heading F4G. In a freeze-drying apparatus, vertical fixed heating elements 3, extending longitudinally of a vacuum chamber 1, are interleaved with movable receptacles 8 carrying the material to be dried. The receptacles 8 may be joined at the top by a portion 9 mounted on wheels 10 running on rails 11 above the heating elements 3. Alternatively the receptacles may be movable individually in troughs (18, 19, Fig. 3, not shown), or they may have wheels at each corner bearing against the plates containing the heating elements (Fig. 5, not shown). The receptacles preferably have perforations (13) to allow vapour to escape, or are made from meshed web. The receptacle has a trap-like bottom 17 to facilitate discharge of the dried material, which may be for example coffee, tea or small pieces of vegetable, meat or fruit. The heating elements may be electric heaters or tubes containing heated liquids or gases or steam, and they may extend the whole length of the chamber or there may be consecutive sets of adjacent elements producing different temperature zones along the chamber (Fig. 5).
Patent GB-1258248-A (GB)
IPC: A23L27/30
Filed: 1968-07-17
Abstract: 1,258,248. Artificial sweeteners. G. D. SEARLE & CO. 16 July, 1969 [17 July, 1968], No. 33971/68. Heading A2B. [Also in Division C2] Sweetening compositions contain the dipeptide where R is H, OH, or O Alkyl and Alkyl contains 7-7 C-atoms; optionally with other sweetening agents, e.g. saccharin and cyclamates. The dipeptides may be in DL-DL; L-L; DL-L; or L-DL forms.
Patent GB-1258385-A (GB)
IPC: G01V1/18
Filed: 1970-08-27
Abstract: 1258385 Diaphragm springs MANDREL INDUSTRIES Inc 27 Aug 1970 [24 Sept 1969] 41171/70 Headings H4J J7K J6A J5D and J5N A diaphragm spring 16, formed wholly of resilient material and flat when unloaded, consists of two support members 18 and 19, and between them two concentrically nested spaced annuli 21 and 22. The bridge 23 linking the member 18 to the annulus 21 is required to be diametrically opposite the bridge 24 linking the annulus 21 to the annulus 22, and this bridge is required to be diametrically opposite the bridge 26 linking the annulus 22 to the member 19. The members 18 and 19 may also be annular. The spring is formed from a disc of Be-Cu alloy by etching three concentric arcuate slots 27, 28 and 29 to give the required four annuli linked by three bridges. In Fig. 4 (not shown) the intermediate annula (21<SP>1</SP> and 22<SP>1</SP>) are each of varying width. There may be more than two intermediate annuli.
Patent GB-1258432-A (GB)
IPC: B23Q3/155
Filed: 1969-06-11
Abstract: 1,258,432. Tool changers. MAKING MILLING MACHINE CO. Ltd. 11 June, 1969 [18 June, 1968], No. 29613/69. Headings B3B and B3C. A machine tool includes a rotatable tool storage magazine 14 having tools mounted in cartridges 17 which are brought to a change position and lowered by a lead screw 38 to enable a tool to be removed or replaced by a toolchanging device 41. The device 41 comprises a triangular body casing 55 which can swivel to bring either of a pair of tool grips on slidable arms 78, 79 in alignment with a tool spindle 6 or a tool or empty socket in the cartridge 17. The casing 55 is also movable parallel to the spindle 6 to extract or engage a tool with the spindle 6 or cartridge 17. The two arms 78, 79 are moved simultaneously by a common drive constituted by a fluid pressure operated rack which drives a gear which meshes with two pinions connected with respective racks on the arms 78, 79 (Fig. 11, not shown). Both arms may be held stationary in a neutral mid-position of their stroke. The casing 55 which carries the arms 78, 79, is movable hydraulically parallel to the spindle 6 by means of a piston and cylinder, the cylinder being attached to a plate which is swivelled by a servomotor (Fig. 8, not shown). The swivelling is limited by adjustable end stops (Fig. 10, not shown). The machine tool comprises a bed 3 on which a work-table 1 is movable in " X " and " Y " axes, and a column 4 along which a spindle head 5 moves in the " Z " axis. The spindle head 5 carries the extendable tool spindle 6.
Patent GB-1258434-A (GB)
IPC: B23B31/19
Filed: 1969-06-12
Abstract: 1,258,434. Chucks. D. FISCHER, and R. KOHLERT. 12 June, 1969 [14 June, 1968], No. 29788/69. Heading B3B. An axially clamping chuck comprises jaw attachments 27 that move radially to centre a workpiece and axially to clamp the workpiece against a support 43. The jaw attachments may move to centre a workpiece externally or internally. The axial clamping is achieved by moving a draw rod 5 which moves a clamp plate 3 until it engages faces 22 on rings 24 of ball pins 20, further movement resulting in the ball pins 20 axially moving main jaws 15 upon which the jaw attachments 27 are adjustably mounted. The ball pins 20, rings 24 and the ball 7 of the draw rod 5 allow clamping of irregular workpieces. Radial centring movement of the jaws is achieved by mounting each of the main jaws 15 in a bush 16 which is slidable radially in apertures 14 of the main body 1. A centring disc 4 is rotated so that bushes 25 carried by the ball pins 20 and engaging cam slots in the disc 4 are moved radially. The disc 4 is spring biased in the direction to centre a workpiece and is rotated to release a workpiece when the clamp plate 3 is moved to unclamp a workpiece by wedge faces of engaging pins 31, 35, the pins 35 acting in further cam slots in the disc 4. The jaw attachments 27 are adjustably fixed on the main jaws 15 by screws 49. A pin and lug 36, 40 can hold the disc 4 at its extreme of movement to adjust the jaw attachment. Faces 27<SP>1</SP> may be machined to accurately centre a workpiece. The direction of centring is altered by rotating the pins 31 through 180 degrees and by moving a spring stack from one bore in the main body 1 to another.
Patent GB-1259474-A (GB)
IPC: A42B3/22
Filed: 1968-10-21
Abstract: 1,259,474. Driving dynamos. M. L. AVIATION CO. Ltd. 28 Nov., 1969 [21 Oct., 1968], No. 49773/68. Heading H2A. A generator 1 for igniting an explosive cartridge for operating a pivoted visor on an airman's helmet, has its armature shaft 2 connected through a uni-directional ratchet clutch to a shaft 9 coupled to a coiled spring 14, the shaft having lateral arms 21 engageable by a pin 22 to hold the spring in the stressed condition so that withdrawal of the pin allows the spring to drive the armature through the clutch, the latter permitting the armature to over-run when the spring is unwound. The shaft 9 has a slotted end 20 for insertion of a screw-driver by means of which the spring can be re-wound. The pin may be withdrawn by a cable 23 connected to the release handle of an aircraft ejector seat.
Patent GB-1264885-A (GB)
IPC: H02K3/22
Filed: 1969-06-04
Abstract: 1,264,885. Liquid cooling of electrical machine rotor windings. LICENTIA PATENTVERWALTUNGS G.m.b.H. 4 June, 1969 [8 June, 1968], No. 28301/69. Heading H2A. In an electrical machine, e.g. turbogenerator, rotor having a liquid cooled hollow field winding comprising a coil overhang which includes radially superimposed crossconductors 26 surrounding a shaft portion 11, at one end only of the rotor cooling liquid, e.g. water, admission and discharge chambers 15, 16 and 17, 18 in the form of part-annular sectors of substantially the same circumferential length are provided in the shaft portion in one and the same transverse plane I-I and follow one another alternately, whilst from the admission and. discharge chambers lead respective admission and discharge ducts 27, 31 to substantially similar respective proportions of the crossconductors on which admission- and discharge-duct connections 29, 30 follow one another alternately in the radial direction. Instead of every crossconductor, only every other crossconductor may have a dust connection. Slip ring leads 24, 25 on the pole plane + PP are also water cooled.
Patent GB-1265191-A (GB)
IPC: G01N33/497
Filed: 1969-03-05
Abstract: 1,265,191. Gas analysis. R. F. BORKENSTEIN. March 5, 1969 [March 6, 1968], No. 11702/69. Heading G1B. Breath sampling an analyzing apparatus for determination of alcohol therein comprises a casing containing a breath sample collecting cylinder 52 with a piston which after purging of the apparatus with air is movable from one end of the cylinder to the other by a subject blowing thereinto through an inlet tube (not shown), the sample subsequently being forced out of the cylinder by means of air pressure applied to the piston, through a delivery pipe 29 fitting 28 and bubbler pipe 27 to the interior of a glass ampoule 24 containing acidified potassium dichromate solution, the ampoule being disposed at one side of a lamp 36 in a photometer 34 also containing a reference ampoule 26 for comparison, the lamp 36 being movable manually in the directions of the arrows 37 to obtain a null reading from the photometer before and after passage of the breath sample through the ampoule 24, the movement of the lamp required after such passage being registered on a counter (not shown) reading directly in percent blood alcohol. The apparatus is supplied from the electric mains and the operation thereof is controlled by a rotating programme disc 38 rotated by an electric motor after initiation of a test cycle by the operater. Heating coils 53, 54 controlled by thermostat switches 56, 57 keep the temperature of the gas sample in the cylinder 52 constant and a test cannot be carried out until this temperature has reached the desired level. Cams such as 44 on the disc 38 provide for the control of various switches in the apparatus and the disc 38 also carries a series of air passages which connect with a valve part plate 61 to provide the desired connections at the various operational stages of the apparatus. An indicator disc 42 rotates with the disc 38 and indicates by differently coloured panels thereon which stage of operation has been reached. A flasher unit 66 also gives an audible indication of certain stages. Electrical circuitry for controlling the operation of the apparatus and for preventing the passage from one stage to the next until all the desired conditions have been satisfied e.g. the passing of the breath sample to the analyzer until the cylinder 52 is full, is described in detail in the Specification.
Patent GB-1266947-A (GB)
IPC: C08J9/00
Filed: 1969-10-02
Abstract: 1,266,947. Wet grinding. KNAPSACK A.G. 2 Oct., 1969 [3 Oct., 1968; 28 Aug., 1969], No. 48544/69. Heading B2A. [Also in Division C1] A ball mill 14 (Fig. 1) is provided with an agitator 13 and is filled with glass balls 1-2 mm in diameter. The mill has a sieve (not shown) at its outlet end above discharge pipe 15, and is connected upstream and downstream to agitated reservoirs 6 and 17 respectively. Pump 11 supplies an aqueous suspension of red phosphorus to the mill, which forms part of apparatus used to obtain finely-divided red phosphorus (see Division C1).
Patent GB-1289139-A (GB)
IPC: H03C1/36
Filed: 1969-12-01
Abstract: 1289139 Amplitude modulation TELEFUNKEN PATENTVERWERTUNGS GmbH 1 Dec 1969 [30 Nov 1968] 58521/69 Heading H3R In an amplitude modulator the signal to be modulated is applied to the base of a transistor 1, and the modulating signal to its emitter via a transistor 2 a modulated output being taken from the collector circuit across a parallel tuned circuit comprising inductor 3 together with circuit capacitances. The emitter of transistor 1 is earthed for the carrier frequency by a capacitor 8, and its base is earthed for the modulating frequency by means of a choke 5 and capacitor 6: a constant base bias potential is derived over a Zener diode 4. The carrier signal is applied over an impedance-matching network 13-16 and modulated carrier is derived from the collector circuit via a second impedance matching network 17-19. The base bias of transistor 2 may be adjusted by means of bias potentiometer 10. In a modification, the Zener diode is replaced by a resistor, a constant base bias for transistor I being derived by means of a pair of series-connected diodes (21, 22, Fig. 2, not shown) connecting the base to earth.