baber/WOPTO huggingface dataset:
Patent GB-1328813-A (GB)
Title: Concerning intr-uterine contraceptive devices and fitting of same
IPC: A61F6/14
Filed: 1970-10-13
Abstract: 1328813 Intrauterine devices M H KNOCH 13 Oct 1970 [14 Odt 1969] 48692/70 Heading ASR An intrauterine contraceptive device, Fig. 1, is of planar form and comprises a ring 1 of elastic material joined to the centre of an elastic member 3, by gold thread 2, and a generally V-shaped elastic member 10 joined by gold threads 11 and 12 to ring 1, the members 3 and 10 defining a generally triangular outer configuration of the device. Ends of the legs 8, 9 of member 10 are formed as loops 15, 16 bound by gold threads 17, 18 and lying under looped ends 4, 5 of member 3, loops 4, 5 being bound by gold threads 6, 7. Members 1, 3 and 10 may each be formed of two or more threads of silkworm or of synthetic material or of metal. The device is introduced by a probe, Fig. 6, comprising an outer tubular member 50 provided with a depth scale and a handle 51 and slideable over a rod 41 conneotable to the device and having a handle 40 so that the device may be folded in its plane and enclosed in member 50. The rod 41 has a slot (42), Fig. 4 (not shown) engageable with the member 10 and releasably lockable thereon by means of a slide (43) moved by a knob (44). A probe, Fig. 3 (not shown), for determining the distance C, Fig. 1, from the ostium uteri externum 27 to the plane where the uterus has a given width D comprises two rods (30), (31) each having a depth scale and fixed alongside each other for relative rotation about their longitudinal axes. One end of each rod has a part (34), (35) inclined to the respective rod axis, the rods being rotatable so that parts (34), (35) lie together when the probe is inserted, whereafter they are moved so that they diverge from each other with their free ends separated by distance D. After measuring distance C and also the distance A from the ostium uteri externum to the fundus uteri and the distance B from the ostium uteri externum to a tubar corner, a device is manufactured, or selected from a range of sizes, according to the measured dimensions A, B, C so that in use the device lies free from the uterus walls along the top of two sides of the uterus with an average clearance of about 1-2 mm. between said walls and the device.
Patent GB-1498939-A (GB)
Title: Process monitoring
IPC: G06G7/52
Filed: 1973-10-19
Abstract: 1498939 Electric analogue calculating ASSOCIATED ENG Ltd 17 Jan 1975 [19 Oct 1973] 48932/73 Heading G4G An electric analogue system for monitoring a process measures a characteristic of a series of products and generates electrical signals representing the measured values which are then classified into those above, below and between two limits, the number in each group being counted and the totals are used in an empirical formula of polynomial form and peculiar to each process to derive signals representing the mean and standard deviation or quantities analogous to those functions of the measured values.
Patent GB-1392922-A (GB)
Title: Forming photographic images in silver halide emulsions
IPC: G03C1/34
Filed: 1972-03-03
Abstract: 1392922 Developing silver halide emulsions FUJI PHOTO FILM CO Ltd 3 March 1972 [4 March 1971] 49014/74 Divided out of 1392461 Heading G2C A method of improving image sharpness by the 'adjacency effect' comprises developing an imagewise exposed silver halide emulsion layer in the presence of 1) an ethylene oxide polymer comprising a polyethylene glycol or a condensation product of an ethylene oxide with an active hydrogen-containing organic compound, the ethylene oxide chain of the polymer having a molecular weight of at least 300, and 2) a merocyanine dye of Formula:- wherein W is S, Se, O or a 7N-R<SP>3</SP> group, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each represent H, optionally substituted alkyl or optionally substituted aryl, and Z completes an optionally substituted heterocyclic nucleus comprising a 5- or 6- membered heterocyclic ring which contains the N atom shown. Examples of the polymer include N- methylmyristylamino polyethylene oxide, polyethylene oxide-oleyl ether,-monolaurate,- nonylphenyl ether and -sorbitan monolaurate. The compounds may be contained in an element comprising the emulsion layer, [or] in a developer solution, or in a processing solution used prior to development e.g. a hardening bath.
Patent GB-1196567-A (GB)
Title: Improvements in and relating to spools for photographic films
Inventor: KRAUSE OTTO W
IPC: G03D13/14
Filed: 1968-10-16
Abstract: 1,196,567. Developing spools. O. W. KRAUSE. Oct.16, 1968 [Oct.17, 1967], No.49165/68. Heading G2A. A developing spool having a spindle 13 and two spirally grooved discs 11, 12 mounted on the spindle has a retaining mechanism, for securing the ends of the film to the spindle comprising a flap 19 resiliently lockable in an open or closed position and which in the open position defines with the spindle a wedge-shaped gap for introducing the end of the film on to the spindle, in the vicinity of the flap there terminating a lead-in channel 28 of an ancillary device 25 which can be coupled to the spool, the channel guiding the film beneath the flap. The flap is mounted to swing on the spirally grooved discs and is locked by a projection (21) Fig. 2 (not shown), located on a free end of a radial web which functions as a resilient torque. A retaining pip 18 is provided on the spindle for anchoring the film, a recess 20 on the flap accommodating the pip in the closed position of the flap. A locking element 32 mounted on one of the discs orientates the channel with respect to the flap. After anchoring the film to the spindle, the spool is filled by being rotated the lead-in channel pivoting about a bearing 27. The film or a pair of films in back-to-back relation is held against the inner wall of the spiral grooves by guide elements 17 provided on the webs 14 interconnecting the turns of the spiral. The inlet end of the channel has a semi-circular orifice 35.
Patent GB-1446068-A (GB)
Title: Stabilization of quiescent collector potential of current-mode biased transistors-
IPC: H03F3/347
Filed: 1973-10-23
Abstract: 1446068 Transistor amplifying circuits RCA CORPORATION 23 Oct 1973 [1 Nov 1972] 49218/73 Heading H3T A biasing arrangement for a transistor 101, Fig. 1, operating as an amplifier with a collector load resistance 107 comprises a constant-current source 103 providing a base bias current I 1  and also a collector current I 2  wherein I 2 /I 1  is proportional to hfe the current gain of the transistor, so that no current flows through the load 107 in response to the base current I 1 . In a first embodiment, the base current is supplied from the collector of a transistor 207, Fig. 2, which derives base bias from a diodeconnected like transistor 205. Transistor 205 also biases a further like transistor 201, the collector circuit of which supplies the collector current I 2 , via the emitter to collector path of a common-base connected transistor 211. In a further embodiment the "transistor" 101, Fig. 3 comprises a Darlington multiple M, i.e. pair 301, 302; the base bias current 1 comprises the collector current of one transistor 333 and the collector current I 2  the collector current of the other transistor 334, of a long-tailed pair. If M is the number of transistors in the Darlington circuit, transistor 334 derives base bias from (M+1) diode-connected transistors 320, 321, 322 arranged in series with resistor 332, while transistor 333 derives base bias from transistor 310 and resistor 331, which is the same value as resistor 332: transistor 310 derives base bias from M diode-connected transistors 311, 312 in series. In yet another embodiment the transistors 333, 334, Fig. 4 which respectively provide base and collector currents have as common emitter impedance the emitter to collector path of a further transistor 435. Transistor 435 receives base bias from a diode-connected transistor 434 which forms the collector circuit impedance of transistor 432. The bases of transistors 431, 432, 433 are all connected to the same voltage bias point; transistor 431 provides, in conjunction with Darlington pair 410, 411 and diode-connected transistor 412 the base bias for transistor 333, while transistor 433 in conjunction with transistor 421 and diodeconnected transistors 420, 422 provides base bias for transistor 334.
Patent GB-1370399-A (GB)
Title: Magnetic tape head indexing assembly for cartridge type tape player
IPC: G11B5/55
Filed: 1972-10-25
Abstract: 1370399 Cartridge player MOTOROLA Inc 25 Oct 1972 [1 Dec 1971] 49264/72 Heading G5R In a cartridge player, head member 34 is moved along rods 38, 40 for track changing by a cam 52 and cam follower 58 operated by a solenoid 96 via a bi-stable spring assembly. In the arrangement shown in which the head member is moved to the next set of tracks by 90 degrees rotation of the cam 52, the movement is initiated by energization of the solenoid which pivots cam 82 clockwise away from its stop 92. The over-centre action of spring 81 then moves the arm into engagement with stop 94 and the movement of the spring moves a second arm 72 anticlockwise so that panel 62 mounted thereon acts on ratchet 66, which is fast with the cam, to move the latter through 45 degrees. The pivoting of the arm 72 moves it into the path of a pin 118 mounted on the flywheel of the tape capstan and this moves the arm 72 and via spring 81 the cam 8 back to their initial position. This restoration of the arm 72 acts via the pawl and ratchet to move the cam through the further 45 degrees.
Patent GB-1522562-A (GB)
Title: Mineral mining apparatus
IPC: E21C27/34
Filed: 1976-11-26
Abstract: 1522562 Mineral-mining installations GEWERKSCHAFT EISENHUTTE WESTFALIA 26 Nov 1976 [5 Dec 1975] 49420/76 Heading E1F [Also in Division B8] The means for moving a sprocket wheel 20 for adjusting the tension of the haulage chain of a mineral-mining machine involves a hydraulically actuated piston cylinder arrangement 22 and a locking device 30 for mechanically locking the sprocket wheel to an associated structural component of a mining installation of which the machine forms a part in one of a number of positions to which the sprocket wheel may be moved relative to the structural component by the piston cylinder unit. Preferably the wheel is mounted in a housing 18 slidably associated with a conveyor 10 and the piston cylinder arrangement involves two parallel, short stroke piston cylinder units mounted within the housing to act between the housing and the conveyor. A magnet may be mounted on the locking device for controlling an electromagnetically operated switch 34 in a safety circuit of the motor means driving the sprocket. The locking device can comprise a manually movable bolt 29 that can be engaged in holes 31 in a plate 16 secured to the side of the conveyor 10.
Patent GB-1391082-A (GB)
Title: Optically active amino benzophenones
IPC: C07D243/32
Filed: 1972-03-17
Abstract: 1391082 Amidobenzophenones CRC COMPAGNIA DI RICERCA CHIMICA SA 17 March 1972 [17 March 1971] 49556/74 Divided out of 1391081 Heading C2C S-Compounds of the general formula (R<SP>1</SP> = H, halogen, NO 2 : R<SP>2</SP> = H, C 1-4  alkyl; R<SP>3</SP> = C 1-4  alkyl, benzyl, substituted benzyl; A = protecting group) are prepared by acylating the corresponding 2-aminobenzophenone.
Patent GB-1170078-A (GB)
Title: Improvements in or relating to Valves for Centrifugal Pumps
IPC: F04D15/00
Filed: 1966-11-07
Abstract: 1,170,078. Centrifugal pumps. WERNER& PFLEIDERER. Nov.7, 1966 [Nov.25, 1965], No.49772/66. Heading F1C. [Also in Division F2] A non-return valve in the outlet of a centrifugal pump provides a small by-pass flow in closed position to protect the pump, and in open position this flow is shut off. In closed position as shown a plug-like part 12 of the valve member closes the valve inlet 13 and a lift closure part 6 seats on a seat 7, the valve being loaded by a spring 9. The small by-pass flow takes place through passages 25, 26 in the valve member, a spiral passage 22 formed by respective grooves in a stem 3 of the valve member and a sleeve 4, and by-pass passage 24. In open position the stem 3 seals against the sleeve 4 to stop the by-pass flow, and the main flow takes place round a flange-like part of the valve member as shown, on the outlet side of the seat 7, to outlet 8. The lift is limited by a stop pin 10 which also acts as a guide. Passages (16, Fig.2, not shown) connect chambers 15, 17 adjacent the respective closures 12, 6.
Patent GB-1191467-A (GB)
Title: Silica-Alumina Cracking Catalysts.
IPC: B01J21/16
Filed: 1967-11-02
Abstract: 1,191,467. SiO 2 -Al 2 O 3  cracking catalysts. W.R. GRACE & CO. 2 Nov., 1967 [2 Nov., 1966; (2) 3 Nov., 1966; 4 Nov., 1966], No. 49928/67: Heading B1E. SiO 2 -Al 2 O 3  cracking catalysts are made by (i) introducing into a mixing zone an alkali metal silicate solution containing 1-15%SiO 2 , (ii) simultaneously introducing into the mixing zone an aluminium sulphate solution having a concentration of 10-90 gms/litre, the temperature of each solution being 70-150‹F thereby forming a SiO 2 -Al 2 O 3  coprecipitate in the mixing zone as the two solutions mix, (iii) forming a slurry of the SiO 2 -Al 2 O 3 , (iv) adjusting the pH of the slurry to 6-9 and (v) filtering, washing and drying the catalyst product. Additionally the catalyst may contain clay e.g. kaolin or a zeolite e.g. in its rare earth form.
Patent GB-1172120-A (GB)
Title: Asphalt-Polybutene Mixtures
IPC: C08L95/00
Filed: 1967-11-08
Abstract: 1,172,120. Asphalt and butene polymer compositions. ETHYLENE-PLASTIQUE. 8 Nov., 1967 [16 Nov., 1966], No. 50776/67. Headings C3N and C3P. A composition comprises by weight 5-95% butene-1 polymer and 95-5% asphalt. The polymer may be a homo-polymer, and may have 50-95% isotacticity. Additionally there may be admixed up to 50 parts by weight of filler per 100 parts of the above composition. The filler may be, e.g., SiO 2 , CaCO 3 , talc, asbestos, mica, silicate of Al, Ca, or Mg, BaSO 4 , PbO, BaC0 3 , aluminium carbonate, MgCO 3 , Al 2 O 3 , or mixture thereof.
Patent GB-1345498-A (GB)
Title: Cheese vat
IPC: A01J25/06
Filed: 1972-11-03
Abstract: 1345498 Cheese vat GOLDEN VALE FOOD PRODUCTS Ltd 3 Nov 1972 [4 Nov 1971] 50839/72 Heading A2B A cheese vat comprises a cylindrical, preferably enclosed, vessel provided with a stirrer, the base portion of the vessel being in the form of an endless trough the lowermost portion of which is concentric with the centre of the base portion. Fig. 1 shows a suitable embodiment, the enclosed vessel 1 having a base formed by trough 4 and planetary stirrers 18. (For Figure see next column)
Patent GB-1320824-A (GB)
Title: Device for the clamping of diagram charts
IPC: G01D15/32
Filed: 1971-11-09
Abstract: 1320824 Recording-apparatus KIENZLE APPARATE GmbH 9 Nov 1971 [10 Nov 1970] 52067/71 Heading G1J Recording-apparatus has, in a housing 1, a support 6 with centering means 8 for a disc chart 4 and a clamp 15 on a cover 10 with rotatable means 16 spring urged perpendicularly towards the support 6 when the cover 10 is closed so as frictionally to engage the chart 4 and to turn therewith when driven by a clock 5. As shown, Fig.6, a bell 16, preferably transparent, has a bushing 20 receiving a shaft 17 and an annular flange 19 on which a spring 18 is supported. The bell 16 is secured on the shaft 17 by a spring washer 21 and the shaft 17 has a head 22 by which it is secured to the cover 10 e.g. by sticking. If the chart 4 is angularly located by an eccentric nose 9 on a centering bolt 8, the bell embraces the nose 9 and bolt 8; if it is located by a separate driving bolt the bell need only cover the centering bolt; and if the support 6 has a ring of pins, the bell is provided with an annular groove in its peripheral end-face to receive the pins.
Patent GB-1102193-A (GB)
Title: Improvements in and relating to bale winders
IPC: B30B9/30
Filed: 1964-08-14
Abstract: 1,102,193. Packaging by winding. E. THIEL. 3 Aug., 1965 [14 Aug., 1964], No. 52355/65. Divided out of 1,102,191. Heading B8C. Fleece sheared from a sheep is automatically wound into a bale by means of an endless conveyer 198 and a pair of rotatable ribbed discs 200 mounted on shafts 202. As the fleece is received in the enclosure formed by the conveyer some strands of it are drawn away and taken up by a spiked member provided on a rotatable disc 207 at the front of a pivotallymounted casing 205. As the fleece is rotated by the conveyer and the ribbed discs, the strands connected to the spiked member are twisted into a rope and as this rope becomes more tightly twisted, the casing 205 rocks towards the mass of fleece and eventually reaches a lowermost position by which time the rope has become wound round the mass of fleece by at least one complete turn. A fastening hook 209 provided at the front of the casing 205 is then swung about its pivot and as the disc 207 continues to rotate the end of the rope is taken up by the tip of the hook 209 and detached from the spiked member whereupon the hook swings back to draw the free end of the rope beneath the bight surrounding the bale thereby tying the bale. The shafts 202 are then withdrawn and the freed bale is lifted by the conveyer 198 and ribbed discs 200 into contact with a conveyer 210 which urges it upwards and discharges it.
Patent GB-1514870-A (GB)
Title: Imidazolyloxime ethers having antimycotic and bactericidal activity
IPC: C07D233/61
Filed: 1976-12-23
Abstract: 1514870 Imidazolyl-oxime SIEGFRIED AG 23 Dec 1976 [24 Dec 1975] 52951/76 Heading C2C Novel compounds of Formula I in the form of either of their possible geometric isomers or a mixture thereof in free base form or salt form as a result of reaction with an acid, in which general formula: "alk" denotes an alkylene chain containing from 1 to 4 carbon atoms, A denotes an aromatic or heteroaromatic ring system containing from 1 to 3 rings and which is optionally substituted by one or more radicals which is/are halogen, nitro, alkyl or alkoxy containing from 1 to 6 carbon atoms, cycloalkyl, phenyl or phenoxy, said cycloalkyl, phenyl or phenoxy radicals optionally being substituted in their turn by one or more radicals which is/are halogen, nitro or alkyl or alkoxy containing from 1 to 6 carbon atoms, and B denotes either a group of formula wherein R is a saturated or unsaturated aliphatic group containing up to 8 carbon atoms, A has the aforesaid meaning, Z is a direct chemical linkage or an oxygen atom and n is 0 or an integer corresponding to the number of groupings -Z-A substituting R, or a group of Formula A, wherein A has the aforesaid meaning are prepared by formation of the N = C or O-B linkage. Unsubstituted oximes are prepared as intermediates. Pharmaceutical compositions in conventional forms for oral, rectal, parenteral and topical administration and having antimyotic and bactericidal activity comprise an above novel compound and a carrier.
Patent GB-1206626-A (GB)
Title: Improved process for preparing cephalosporin antibiotics
IPC: C07D501/06
Filed: 1967-11-23
Abstract: 1,206,626. Acylation of 7-ACA. ELI LILLY & CO. 23 Nov., 1967 [23 Nov., 1966], No. 53320/67. Heading C2A. An improved process for acylating 7-ACA with an acyl halide, comprises contacting the 7-ACA with the acyl halide in the presence of (1) an organic liquid diluent (containing up to 5% by volume of water) that is a non-solvent for said 7-ACA, substantially chemically inert toward said acyl halide and a solvent for the cephalosporin acylation product, and (2) at least one member of the group consisting of urea, thiourea, biuret, dithiobiuret, phenylurea, 1,1-diphenylurea, and phenylthiourea, said component (2) being present in the reaction mixture in an amount ranging from about 0À5 to about 2À0 molar equivalents of said component (2) for each molar equivalent of the acyl halide. Specified organic diluents are dialkyl ketones having 1 to 2 carbon atoms in each alkyl group, e.g. acetone, alkyl esters of 2-7 carbon atoms, e.g. ethyl acetate and a dialkyl sulphoxide of 1-4 carbon atoms in each alkyl group, e.g. dimethyl sulphoxide, or mixtures thereof. For the preparation of sodium 7-(2<SP>1</SP>-thienylacetamido) cephalosporanic acid, diluent (1) is acetone, component (2) is urea, the 2-thienylacetyl chloride is added gradually over 0À5 to 1À5 hours and the sodium salt is formed by the addition of sodium in methanol to the organic liquid containing the free acid. A pharmaceutical composition comprises a cephalosporin prepared as above and a carrier.
Patent GB-1363297-A (GB)
Title: Flywheels for screw presses
IPC: F16H55/34
Filed: 1971-11-19
Abstract: 1363297 Friction gearing LINDEMANN MASCHINENFABRIK GmbH 19 Nov 1971 [28 Jan 1971] 53908/71 Heading F2Q [Also in Division B5] A friction drive wheel 3 (e.g. a flywheel of a screw press, Fig. 1) comprises a friction tyre 9, 9a ... 9c (which may be segmented) mounted in an undercut groove comprising a base 6 integral with one wall 7, and another wall 8 resiliently urged axially towards the other wall. The wall 8 may be integral with a resilient diaphragm 15 mounted on the wheel hub, either by a cap 10 keyed at 12 to the hub connected to the diaphragm (in circle IV) either by a friction ring or by teeth, or by a self-tightening thread 16 either on the hub itself or on a cap 19 keyed and bolted thereon.
Patent GB-540116-A (GB)
Abstract: 540,116. Composite sound effects. ELECTRICAL RESEARCH PRODUCTS, Inc. April 30, 1940, Nos. 7712 and 7713. Convention dates, May 13, 1939, and Dec. 1, 1939. Class 40 (iv)] The apparatus described in Specification 466,327 in which speech &c. is synthesized from currents derived from a harmonic generator, a gasfilled tube 60 connected as a relaxation oscillator in the present case, and a noise generator 41 in accordance with signals from a transmitting station indicative of the momentary fundamental frequency of the distant speech &c. and of the energy in each of a number of narrow bands into which it is divided is modified to enable various unnatural sound effects to be produced or recorded. For example, the signals indicating the energy level of the bands instead of controlling the energy in the same respective bands may control that in different bands as regards order, range or frequency value. By this means a word spoken as " yes " may be reproduced as " no " &c. The use of automatic switching in this connection is suggested but not described. In addition the fundamental frequency generated by the harmonic producer can be given various values for a given fundamental frequency in the voice by means of a slide 12. The currents from the harmonic generator may be replaced by currents representing natural or other sounds from a microphone 27 or pick-up 26. An adjustable proportion of these currents may be fed to the sound-producing or recording circuit over switch S3 as a background. The noise source which normally supplies the material for re-constituting unvoiced sounds may be connected up over switch 15 and an amplifier like SN1 may be arranged to suppress the output of microphone 27 &c. when unvoiced sounds are spoken into microphone M. In yet another arrangement the fundamental frequency of the harmonic generator is controlled by a voice speaking into or a musical instrument affecting a microphone P and the energy content of the various bands by a voice using microphone M. By this means a speech can be reproduced as a song, a soprano can be reproduced as a bass, and so on.