baber/WOPTO huggingface dataset:
Patent GB-1363816-A (GB)
Title: Centrifuge and self positioning tube holder thereof
IPC: B04B5/02
Filed: 1972-11-06
Abstract: 1363816 Centrifugal separator AMERICAN HOSPITAL SUPPLY CORP 6 Nov 1972 [31 Jan 1972] 51064/72 Heading B2P In a centrifuge having a rotor 10, Fig. 1, which is selectively rotatable in clockwise and counterclockwise directions about a vertical axis 14 by a motor 13 and which is equipped with circumferentially - spaced holders 11  adapted to support, or formed integrally with, open-topped centrifuge containers 12, each of the holders is pivotable about a horizontal axis and is provided with a weight 21, Figs. 4 and 11, shiftable with respect to the holder between a first position A when the rotor rotates in one sense and a second position C when the rotor rotates in the opposite sense, the weight 21 when in position A urging the holder 11 to pivot the open top of its container 12 inwardly towards the axis 14, Fig. 11, and when in position C urging the holder to pivot the open top of the container outwardly away from the axis 14. Each container may be moulded from plastics or metal and is supported by a pin 16 within a recess 18 of the rotor. The containers or tubes 12 which may be formed of glass or plastics may be removably or permanently mounted in cavities in the holders or may be integral parts of the latter. The weight 21, which may consist of a solid sphere or of particulate material, or which may be a liquid, is movable in an internal J-shaped passage 20 in its respective holder. Instead of the connecting portion 20C between the legs 20A and 20B of the passage 20 being arcuate as shown, it may be of U- shaped or triangular configuration. When the rotor is stationary the weight is in the intermediate rest position B and the tube in the corresponding holder is generally vertical. When the weight is in position A and the tube 12 inclined inwardly as in Fig. 11, a sample of solid material mixed with a washing liquid may be automatically fed to the tube from a manifold chamber 23 in the rotor through a discharge nozzle 24. After filling and centrifuging the rotor 10 is brought to rest and the weight 21 returns to position B. To decant some or all of the liquid from the tube the rotor is rotated counterclockwise so that the weight occupies position C causing the holder to pivot clockwise about the axis of pivot pin 16 until it engages an adjustable stop 25, Fig. 11, and the tube occupies the decanting position shown in Fig. 13.
Patent GB-1449500-A (GB)
Title: Production of hollow bodies from thermoplastic synthetic  material by an estrusion and blow-moulding method
IPC: B29C49/04
Filed: 1973-11-06
Abstract: 1449500 Blow-moulding; severing extrudate S FISCHER 6 Nov 1973 [11 Nov 1972] 51406/73 Heading B5A In an extrusion-blow-moulding process where extrusion is continuous, tubular extrudate portions to be fed to the blow-mould are successively severed therefrom by an element of greater size than the succeeding extrudate crosssection to stop its forward motion and prevent it it contacting the parison and the element is then retracted clear of the path thereof. As shown in Fig. I, the tubular extrudate is extruded from nozzle 12 on head 11 of extruder 13. A jack 16 is connected by bracket 15 to extruder 13 and its piston rod 17 carries arm 18 with knife 19 thereon. Knife 19 is preferably flat and arrowhead shaped and is reciprocated by jack 16 so the arrow point thereof pentrates the tube diametrically. After severing, the succeeding extrudate engages the upper surface of knife 19 and is deformed thereby. The knife is retracted to clear the path for extrusion. The deformed parison section is not used.
Patent GB-1098530-A (GB)
Title: An improved fitting for a flexible conduit
IPC: F16C1/26
Filed: 1965-12-07
Abstract: 1,098,530. Clamps. TELEFLEX Inc. Dec. 7. 1965 [Dec. 18, 1964], No. 51791/65. Heading E2B. [Also in Division F2] In a fitting 10 for supporting a flexible conduit 30 having a penetratable casing 32, and a movable material-transmitting core element 26 movably disposed in the conduit, the fitting comprises a body member 12 mounted about a lengthwise portion of the conduit and includes gripping means in engagement with the conduit, the body member, including the gripping means, positively penetrating into the material of the conduit as a unit to prevent axial movement between the conduit and the fitting while maintaining the conduit substantially free of radial forces which would deform the conduit and interfere with movement of the core element. As shown, the fitting 10 comprises a split tubular portion 12 and flange portions 18, 20 having aligned soles 22, 24 for a clamping and supporting member (not shown). The interior surface of the portion 12 is provided with spikes 16 which in use bite into or project through the casing 32, which may be of plastics material. In another form Figs. 3, 4 (not shown) the tubular portion is resilient, with a single flange extending from the tubular portion diametrically opposite the split therein, a portion of the tubular member on one side of the split being thicker than the portion on the other side of the split. In a further form, Fig. 5 (not shown) for use as an end fitting, a tubular portion (36) is closed at one end except for a hole (54) for the core member 26 and includes a pair of apertured flanges (42) (44). In other forms, Figs. 9-11 (not shown), the tubular portion consists of two hinged or flexibly connected jaws (72), (74) one of which may be integral with or connected to a support member (90) through which the core element extends.
Patent GB-1172381-A (GB)
Title: Improvements in or relating to Musical Instruments
IPC: G05B19/12
Filed: 1966-11-22
Abstract: 1,172,381. Teaching music; keys; instruments. A. C. GILBERT CO. 22 Nov., 1966 [22 Nov., 1965], No. 52172/66. Headings G5J and G5X. A musical instrument has a sensing head which moves relative to an inserted tune card and illuminates indicators in accordance with the tune as read from the card. The card may have the tune coded on it by an arrangement of projections or holes, or may have conductive regions which are connected with contacts on the sensing head. In one form, a tune card 41 having integral projections 42 is inserted in a toy piano as shown. A carriage 50 having vertically aligned sensing pins 53 is moved horizontally across the card. The pins 53 sense the presence of the projections by deflecting spring contacts 51 into engagement with contact strips 49. The rate of traverse of the carriage is controlled by an escapement co-operating with a fixed rack. Depression of each key pivots a bail to increment the carriage. Lamps 28 located one beneath each key are selectively illuminated to indicate the next key to be depressed. The keys which are of plastics and have integral hammers strike sounding bars 21. A pin 83 projecting through a transverse slot is used to return the carriage.
Patent GB-1378657-A (GB)
Title: Light micro-image projection apparatus
IPC: G03B27/62
Filed: 1971-11-12
Abstract: 1378657 Optical projection apparatus MARCONI CO Ltd 3 Nov 1972 [12 Nov 1971] 52637/71 Heading G2J In a diascopic optical projector only a small area of the image bearing medium 7 in the projection station is firmly sandwiched between two transparent members 9, 10 so ensuring the part of the medium 7 being projected is accurately in focus. As shown one of the members 9 is attached to fixed lens mount 11. The other member 10 is held by ring 13 attached to plate 12 biased by springs 14 (only one shown) towards the medium 7. A screw limits the upward movement of the plate 12, and solenoid 16, when energized, draws the plate 12 down against the springs 14.
Patent GB-1369033-A (GB)
Title: Apparatus for deflashing moulded articles
IPC: B23P25/00
Filed: 1971-11-12
Abstract: 1369033 Abrading SOC GENERALE CONSEIL 12 Nov 1971 [12 Nov 1970] 52643/71 Heading B3D [Also in Division B5] Apparatus for deflashing moulded articles, especially of rubber, comprises a container which is preferably formed as two lobes each containing a rotating brush 2, 2<SP>1</SP> to act upon the articles to be deflashed, and a cooling system 6 to chill these articles so that the flash will be brittle and readily removed by the combination of the brushing action and the impact of collision with the container walls and of the articles with each other. Preferably the brushes have stiff bristles, e.g. of polyamide or metal monofilaments of a length such that their ends contact both the internal surface of the container and the bristles of the other brush, the bristles being arranged in either parallel, sinusoidal or helicoidal lines. The cooling means may be liquefied gas, e.g. nitrogen, or solid carbon dioxide fed into the container instead of the cooling coils 6 around the outside.
Patent GB-1235098-A (GB)
Title: Improvements in or relating to toys
Inventor: LEE FRANK WAI WAH
IPC: A63H23/10
Filed: 1969-10-28
Abstract: 1,235,098. Toy whale. COSMO TOYS MANUFACTORY Ltd. 5 Dec., 1969 [28 Oct., 1969], No. 52698/69. Heading A6S. Within the body 1 of a toy whale there is a centrifugal air impeller 4, driven by a battery-operated electric motor, having its outlet 2 connected to a blowhole 3. The body is carried on front wheels 6, mounted on a support 8 which can pivot freely on a vertical shaft 9, and rear wheels 7, which are not steerable. The front wheels 6 are connected to the vertical shaft 9 through a differential gear assembly including a crown wheel 13, the shaft 9 being coupled, through speed reduction gearing 10, to a second electric motor 11 also powered by batteries 12. A small ball 15 of light material is provided which can be supported by the current of air projected upwardly.
Patent GB-1255425-A (GB)
Title: Improvements in the discrete sampling of the values of at least two co-related variables
Inventor: KOLSRUD BJORN HENRIK
IPC: G05B1/08
Filed: 1969-10-28
Abstract: 1,255,425. Selective signalling. B. H. KOLSRUD, and C. O. OSTMAN. 28 Oct., 1969, No. 52824/69. Heading G4H.  In order to overcome the misleading impression obtained of the way in which a function, Fig. 1, varies, by sampling its value at equally spaced points x 1 , x 2 , a 3 , ... , (since the function may vary widely between successive sampling points) either additional samples can be taken whenever the value of the function crosses preset threshold levels y 1 , y 2 , y 3 , ... , these points being shown by circles in Fig. 2, or sample points can be determined successively, each from the preceding, by using each sample point (X r , Y r ) itself to establish a set of threshold levels X r  - #x, x r , x r  + #x and y r  - #y, y r , y r  + #y, as shown in Fig. 3. A block diagram is outlined (Fig. 4, not shown) in which as the function is traced out two series of equiweighted pulses representing x and y displacements are counted, and pairs of counts, representing points on the function, are recorded, e.g. on punched tape, at sampling points determined in accordance with one of the above methods.
Patent GB-1113022-A (GB)
Title: Improvements to pulse-doppler radars
IPC: G11C11/06
Filed: 1965-12-14
Abstract: 1,113,022. Pulse radar. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 14 Dec., 1965 [14 Dec., 1964], No. 52994/65. Heading H4D. Relates to a M.T.I. radar of the type having a receiver 1 including a coherent local oscillator and producing output pulses constant in amplitude from one repetition period to the next for fixed targets and varying at the doppler frequency for moving targets. The output of ,the receiver is fed to a coupler 2, where each repetition period (fr = 4000 c/s.) is divided into 1 Ásec. intervals or quanta. The resulting time quantized signal is passed to an amplitude coder 3, which turns the amplitude of each quantum into a p digit binary code. Two memories 4 are provided, one storing whilst the other is reading out and vice versa. Each memory comprises a matrix of ferrite cores arranged in p planes, one plane per binary digit, and each plane being arranged in n columns, where n is the number of time quanta used, and m lines, where m is the number of repetition periods over which the doppler frequency is to be detected. The first p digit code, i.e. that resulting from the nearest range increment in the first repetition period considered, is stored in the memory allocated to storing at a matrix position n = 1, m = 1. The next code is stored in position n = 2, m = 1, and so on, until the first repetition period has been stored. The codes from the next repetition period are then stored in the second line, with m = 2. The storage is at a rate of 1 million per second, the lines changing at the repetition frequency of 4000 c/s. When all the returns have been stored, the memory is read out along the columns commencing with the column n = 1. The read out, after decoding at 5 thus represents the variation of the amplitude of an increment of the receiver output over the number of repetition periods chosen. The decoded signals are fed via a plurality of doppler filters in parallel 6, and noise-rejecting threshold means 9, to an M.T.I. display, which may be A type, B type or P.P.I. The read out is done at a speed of nfr, so that all doppler signals are also multiplied n times. When the read-out switches from one column to the next, transients may be generated within the pass band of the doppler filters. The output of the decoder 5 is thus multiplied by a weighting factor of Gaussian shape, such that the beginning and end of a column read out is much attenuated. A timing means 12, shown in detail in Fig. 2 (not shown), synchronizes the various operations of the system, and details of the read in-read out devices of the memories 4 are shown in Fig. 3 (not shown).
Patent GB-1215230-A (GB)
Title: Battery charging apparatus
IPC: H02J7/02
Filed: 1968-11-08
Abstract: 1,215,230. Battery-charging systems. L'ECLAIRAGE DES VEHICULES SUR RAIL. 8 Nov., 1968 [9 Nov., 1967], No. 53163/68 Heading H2H. A system for charging a battery 1 in a unit such as an electrically driven vehicle, uses a winding 18 of an electric motor 13 as a smoothing choke. The motor may be a vehicle traction motor. In the device shown, a unit 7 controls a thyristor bridge 2 in order to adjust the charging current in dependence upon the voltage, current and gas pressure in the battery. The winding 18 may be the field winding of the motor, and a switching device may be employed to adjust the amount of inductance included in the charging circuit.
Patent GB-1196320-A (GB)
Title: Electrically Heated Lavatory Seat
IPC: A47K13/30
Filed: 1967-11-22
Abstract: 1,196,320. Electrically heated lavatory seats. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 22 Nov., 1967 [7 Dec., 19661, No. 53257/67. Heading H5H. [Also in Division E1] An electrically heated hollow lavatory seat includes a pair of flexible flat heating elements 16 secured to radially outwardly tapering ribs 18 on the grooved inner surface of the seat upper plate 14. The ribs or headings 18 enable the attachment of the heating elements 16 without wrinkling and reinforce the seat. Each element 16 comprises a woven fabric with the heater woven therein, and the fabric is sandwiched between plastics sheets 19 sealed together at the peripheries to form a waterproof heating element, Figs. 10, 11 (not shown). The seat lower plate 15 is adhesively secured to the channel-shaped upper plate 14. Lead wires 27 from the heating wires 21 of the heating elements 16 are connected to terminal plates 24, and terminal pins 30 are connected to a selector switch 32 with an auxiliary resistor 36 providing for selective control of heating, Figs. 1, 14 (not shown). The heater wire 12, Fig. 12, of stainless steel or brass, is coiled around a non-conductive core thread 20 and alternates with weft yarns 23 interwoven with warp yarns 22.
Patent GB-1183056-A (GB)
Title: Metering Process for Dispensing Measured Quantities of Liquefied Gas
Inventor: BARNES EDWARD
IPC: F17C13/02
Filed: 1966-11-29
Abstract: 1,183,056. Dispensing liquefied gas. B. P. CHEMICALS (U.K.) Ltd. Nov.9, 1967 [Nov.29, 1966], No.53290/66. Heading F1R. Measured quantities of liquefied gas are dispensed by charging a measuring chamber 1 with liquid from a reservoir 6 via a two-way valve 4 which is then reversed to allow the liquid in the chamber 1 to be discharged to an outlet 7 by pressure created above the liquid by evaporation. The chamber 1 is initially purged of air and gas by allowing outflow through a float valve 10. When the chamber is full of liquid a valve 12 is closed. The chamber 1 may be lagged or refrigerated.
Patent GB-1230718-A (GB)
IPC: C07C327/18
Filed: 1969-10-30
Abstract: 1,230,718. Thiolocarboxylic esters. J. R. GEIGY A.G. 30 Oct., 1969 [31 Oct., 1968], No. 53303/69. Heading C2C. [Also in Divisions C3 and C5] The invention comprises compounds of the formula where x is 1-6, y is 1-6, p is 1-4, A is alkyl or alkylene of 1-12 carbon atoms and the lower alkyl groups are non-vicinal and contain 1-6 carbon atoms. The compounds are prepared by reacting a compound of the formula with an equivalent amount of a dialkylhydroxyphenylalkanoyl chloride.
Patent GB-1132511-A (GB)
Title: Signal translating systems
Inventor: SIBILIA JOHN TALBOT
IPC: H01S3/101
Filed: 1965-12-16
Abstract: 1,132,511. Read-only memories. WESTERN ELECTRIC CO. Inc. 16 Dec., 1965 [24 Dec., 1964], No. 53377/65. Heading G4A. [Also in Division H4] To increase the signal to noise ratio in a system operable to route an input light beam along a selected one of a plurality of paths to one of a plurality of output positions e.g. a multistage digital beam deflector wherein each stage comprises a uniaxial birefringeat crystal and a polarization modulator, the light from the selected output position is directed along a path that is a reversal of the selected path before it is detected. As shown, Fig. 1, plane polarized light from source 11 is directed through optical circulator 15, beam deflector 12 and storage medium 13 and is reflected back through the arrangement by mirror 14 along the same path, circulator 15 directing the reflected light to photodetector 16. Circulator 15 comprises a tube filled with an optical medium which exhibits the Faraday rotation effect and terminated at each end with a birefringent crystal or a Wollaston prism, and is arranged to rotate the plane of polarization of the light beam by 45 degrees so that the reflected light beam is polarized at 90 degrees to the input light beam and is thus deflected by the birefringent crystal of the circulator to photodetector 16. Medium 13 may comprise a photographic plate having a plurality of opaque spots developed therein. A half-silvered mirror may be used instead of the circulator. Each stage of the deflector 12 may comprise a single calcite crystal or a Wollaston prism (see Bell System Technical Journal, Volume 43, page 1153, May 1964) and the modulator material may comprise electro-optic KTN. In a second embodiment, Fig. 3 (not shown), mirror 14 is replaced by a second beam deflector (12<SP>1</SP>) back to back with beam deflector (12), and in this embodiment circulator 15 is unnecessary. A polarizer may be used between deflector (12<SP>1</SP>) and detector (16) to permit passage of only that light polarized in the direction of that comprising the selected signal. The Specification includes a mathematical analysis of the system which shows that the signal (S) to noise (N) ratio is increased by the present arrangement from where a is the light intensity-transmitted along the selected path at each stage in the beam deflector, b is the light intensity transmitted along the unselected path at each stage and n the number of stages.
Patent GB-1496149-A (GB)
Title: Razor blade unit
IPC: B26B21/28
Filed: 1974-12-10
Abstract: 1496149 Razors GILLETTE CO 10 Dec 1974 [14 Jan 1974] 53437/74 Heading B4B A razor blade unit comprises a blade member 80, 82, 84 mounted on a platform 12 with its cutting edge adjacent a guard surface 46 and an adjusting mechanism 38, 132, 140 for changing the position of the blade relative to the guard surface. As shown, a pair of blades 80, 82 are separated by a spacer 84 and, together, clamped by a cap 110 against the platform 12 which is integrally moulded, in plastics, with a base 10; the platform is connected to the base member by a thin hinge section 70, Fig. 6. The base is formed with a wall 36 in which is provided a groove 38 and the cap 110 is provided with a slot 132. An actuating member 140 is slidable in the slot 132 and groove 38 so that, due to the inclined relationship of the latter, when the member 140 is moved from one end of the slot to the other, the shaving geometry of the blade in relation to the guard surface can be varied; indicia is provided on the cap to indicate the maximum and minimum settings. In the modification shown in Figs. 9 and 13, the platform 12<SP>1</SP> is formed as a separate part and is provided with a groove 198 which is adapted to cooperate with a ridge 204 on a separate base frame 200 thereby providing a pivotal connection. The adjustment is effected by an actuating member 140<SP>1</SP> in a similar manner to that described in relation to the previous embodiment.
Patent GB-1458674-A (GB)
Title: Wrapping the root-balls of plants
IPC: A01G23/04
Filed: 1973-11-19
Abstract: 1458674 Root ball wrapping H J BOURNE 19 Nov 1973 53672/73 Heading A1E [Also in Division B8] A method of wrapping a root ball of a plant V comprises placing a wrapping of a non- woven web of flexible material (e.g. polyamide, polyester, polyvinyl chloride or polyethylene) comprising a plurality of randomly distributed fibres bonded to one another at a multiplicity of contact points between the fibres, the wrapping conforming to the shape of the root ball with a peripheral zone of the wrapping surrounding the stem-base of the plant, and fixing the wrapping in place around the stem-base of the plant, e.g. by a flexible tie. The wrapping may either be removed before planting out or be disintegrable. As shown, a circular wrapping 1 comprises local reinforcement extending along radial lines and along lines c and a central circular zone 1a. The local reinforcements are formed by hardening a cross-linkable or otherwise polymerisable material, (e.g. vinyl acetate, acrylic polymer, phenolic resin or urea formaldehyde resin), spread along the lines and in the zone. A series of radial folds 1d impart the flexibility required for the wrapping to match the root-ball shape. The central zone 1a may have a spongy lining providing a moisture reserve. For Figure see next column
Patent GB-1184490-A (GB)
Title: Preparation of Esters.
Inventor: STANLEY ROBERT HOLROYD
IPC: C08F4/58
Filed: 1967-11-28
Abstract: 1,184,490. Esters. BRITISH TITAN PRODUCTS CO. Ltd. 14 Oct., 1968 [28 Nov., 1967], No. 53990/67. Heading C2C. Esters are prepared by transesterification in the presence of a catalyst comprising a reaction product of a dialkyl tin oxide (R 2 SnO) and a compound (MX # ) or M(R<SP>1</SP>) m X #-m  in which R represents an alkyl group, X a halogen atom or OR<SP>2</SP> radical where R<SP>2</SP> is hydrocarbon or halohydrocarbon radical, R<SP>1</SP> a hydrocarbon radical, M an atom of aluminium, silicon, boron, titanium or zirconium or a vanadyl radical, v is a valency of M and n is an integer between 1 and v-1 inclusive. Examples describe the preparation of ethylene dimethacrylate, dibutyl adipate, sebacate and phthalate, amyl methacrylate, and 2-ethoxy ethyl acrylate. Many catalysts are specified and the examples use compounds prepared by reacting dibutyl tin oxide and titanium tetraisopropoxide, tetra-n-butyl titanate, tetrakis (2-ethyl hexyl) titanate and tetra-npropyl titanate.