baber/WOPTO huggingface dataset:
Patent GB-556774-A (GB)
Title: Image suppression systems for radio receivers and the like
IPC: H03D7/18
Filed: 1942-03-19
Abstract: 556,774. Transformers. JOHNSON LABORATORIES, Inc. March 19, 1942, No. 3665. Convention date, May 13, 1941. [Class 38 (ii)] [Also in Group XL] In an arrangement for suppressing image frequencies in a superheterodyne radio receiver, the aerial circuit is coupled to the first tuned circuit by a transformer 3, 4 the windings of which are in series opposition and are grounded through a common condenser 7 such that at the image frequency the voltage due to mutual inductance is equal and opposite to that across the condenser, and this condition is maintained as the circuit is tuned over a range of frequencies. Tuning is effected by the movement of a powdered ferromagnetic core, as described in Specifications 366,475 and 455,573, [Group XXXVI], and in order to obtain the desired variation of mutual inductance the greater part of the primary winding 3 is concentrated at the end. of the secondary 4 remote from the core 10 and resonance to the lowest frequency is obtained before the core enters the concentrated part. The Specification gives an example of suitable dimensions for the transformer and for the condenser 7.
Patent GB-268498-A (GB)
Title: Improvements in parachute apparatus
IPC: B64D17/52
Filed: 1926-02-09
Abstract: 268,498. Holt, H. E. S. Feb. 9, 1926. Parachutes.- Parachute apparatus comprising pilot and main parachutes packed in a container, adapted to be fixed to the person of an aeronaut, and provided with fastening means released by a static cord attached to the aircraft, has multiplying gear between the static cord and the fastening to give the cord a mechanical advantage when releasing the fastening. A container a has flaps b secured by a loop e passed through eyelets iu some of the flaps and over a conical pin f on a plate g on the outermost flap, or fastenings as described in Specification 256,735 may be used. A wire h hinged at h<1> is normally held down over the end of the pin f by a pin i passing through pillars i<1> on the plate g. This pin can be withdrawn to release the fastening by a cord c passed through guides t, u on the container and shoulder strap to a fnger ring c<1>, or by a cord o passing through the guide t. The cord o is wound upon and secured to the smaller drum l, Fig. 3, of a compound drum k, l contained in a casing j on the parachute container, the static cord d from the aircraft being fastened to a wire cable d' secured to the larger drum k. The end of the cable d<1> has a head fitting within a recess k<1> in the drum so that it is automatically detached when the recess comes opposite a guide slot p in the casing. A stop r on the drum limits its rotation. The apparatus is set by turning the drum by a key applied to the end of a projecting spindle m until a coloured sector s shows beneath an opening in the cover. A pocket v is provided for the static cord d. Levers or lazytongs may be used instead of the compound drum.
Patent GB-510189-A (GB)
Title: Improvements in or relating to looms for weaving royal axminster carpets and like tufted pile fabrics
IPC: D03D39/02
Filed: 1938-02-07
Abstract: 510,189. Pile-fabric looms. PLATT BROS. & CO., Ltd., and AUSTIN, F. W. Feb. 7, 1938, No. 3726. [Class 142 (ii)] In a loom for weaving Royal Axminster carpets &c., two wefts are inserted by upper and lower needles A. a, Fig. 6, shaped to fit into the forwardly tapering upper and lower parts of the shed, and guided and supported solely by the warps. After passing through the shed, the needles pass between selvage cord containers D, d furnished with large pirns, pivoted fingers &c. f working over grooves d<3> in the container noses causing the weft to return over and under the containers and thus around respective selvage cords. The containers are supported by grooved jaws g<2> on outer and inner pairs of lever arms G, g, which are successively withdrawn from supporting position to allow for the passage of the weft loops. In operation, the lever arms allow the bottom weft to slip off the lower container, but retain the top weft temporarily on the upper container as shown at c', Fig. 3. The tube frame is then inserted between the front and rear parts c<2>, c<3> of the top weft, but behind both parts of the lower weft. The tube frame straightens up, the top weft is allowed to slip off the upper container, the tension pulling this weft tight against the selvage cord e' and moving the rear part c<3> forwards towards the tube' frame. This rises and dwells whilst the part c<3> is beaten up, and then rises further to draw off the correct length of tuft yarn. The lay then retires, the under reed turns up the tufts and the shed changes. The needles may have longitudinal flanges a<1>, a<2> and be each equipped with a permanently threaded eye and a slip eye. In addition, the lower needle has a guide on its underside. The needles may be tubular or have one or more longitudinal bearing ribs.
Patent GB-1510558-A (GB)
Title: Composite trim-strip for vehicles
IPC: B60R13/04
Filed: 1976-01-30
Abstract: 1510558 Moulded plastics-metal trim strips PEBRA GmbH PAUL BRAUN 30 Jan 1976 [1 Feb 1975] 03857/76 Heading B6G [Also in Division B5] A vehicle trim strip comprises an elongate shaped metal strip having at least one shaped plastics part applied to the outward face thereof by injection moulding and bonded thereto by a coating of heat-activated adhesive on the metal strip, said part extending lengthwise of the strip and including at least one integral end closure for the end of the strip. The inward face of the strip may bear a stud or similar element for securing the strip to the vehicle or a mounting into which an element of metal or harder plastics is embedded during moulding for securing the strip to the vehicle. The adhesive may be activated before or during moulding, e.g. by the heat of the injected plastics.
Patent GB-413984-A (GB)
Title: Improvements in dowels
IPC: B29C48/03
Filed: 1934-02-06
Abstract: 413,984. Dowels. LYSAGHT, F. DE S., 93, Chancery Lane, London.-(Clamp Nail Co. ; 4540, Palmer Street, Chicago, U.S.A.) Feb. 6, 1934, No. 3887. [Class 89 (ii).] A dowel for connecting the corner members of a wooden frame comprises a flat plate member 13 having a point 14 and a tail recess 15 and flanges 16 which are flared towards the tail. The flanges are provided with webs 17. In a modification these webs 17 are omitted.
Patent GB-564118-A (GB)
Title: Toilet and other appliances
IPC: A45D27/16
Filed: 1943-03-11
Abstract: 564,118. Shaving appliances. SNELL, T. S. March 11, 1943, No. 3998. [Class 131] A toilet article for use in shaving comprises a container charged with shaving soap or paste which may be caused to exude from the container to a limited extent and a bowl or like receptacle surrounding the container, the container being extended to above or about the level of the rim of the bowl. As shown, the article comprises a pedestal 2a, container 3, and a bowl 1, the whole being screwed to a base or stand 2. The soap is adapted to be fed upwards against a lip in the container by a plunger 4 for finger pressure. A cover 5 with cork lining 6 is provided to cover the soap when it is desired to clean the article. A bowl cover 7 may be provided. In a modification a hot water receptacle may be provided below the bowl &c.
Patent GB-635342-A (GB)
Title: Improvements in and relating to electric lamps and seals therefor
IPC: H01K3/16
Filed: 1946-02-08
Abstract: 635,342. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 8, 1946, No. 4033. Convention date, Feb. 16, 1945. [Class 39 (ii)] [Also in Group XXXVI] An electric lamp comprises a glass envelope 1 to which is sealed a flanged tubular metal cap 4 having sealed internally, near the junction of tube and flange, by fusion a flared tube 13 of glass, the side of the flare remote from the said junction diverging from the inner surface of the cap at an angle B, Fig. 3, which is not acute and is preferably obtuse, whereby the tendency to develop cracks is obviated. This is achieved by relative motion between tube and cap when the flare is being sealed to the shoulder 16. Fig. 1 shows a lamp with cap 4 attached and with a second flanged cap 3 with closed end. The exhausted lamp is sealed off at 14. A filament 7 is secured to lead-wires 8, 9, the upper one being welded to the inner surface of the flange 5 and the lower one passing through the fused end of the neck 2 and being, for example, spot welded to the lip 6 of the cap at 11. In a modification the lead-wire may pass through a slot in the lip. Specifications 514,264, 520,758 and 532,907, [both in Group XXXVI], are referred to.
Patent GB-1088625-A (GB)
Title: Improvements in or relating to a process for making a cationic thermosetting resin
Inventor: EARLE RALPH HERVEY
IPC: C08G71/02
Filed: 1966-01-28
Abstract: Cationic thermosetting resins are obtained by reacting urea or thiourea with a polyamine containing at least three amine groups, at least one of which is a tertiary amine group, in a mole ratio of the polyamine to the urea or thiourea from 0.7:1 to 1.5:1, to form a polyaminoureylene or a polyaminothiourelylene containing amine groups, at least 70% of which are tertiary amine groups, and then reacting the polyaminoureylene or polyaminothiourelylene with epichlorhydrin in a mole ratio of epichlorhydrin to amino groups of from 1.0:1 to 1.7:1.  The polyamine may be methyl bis - (2-aminopropyl) amine, methyl bis - (2-aminoethyl) amine, N-2-(aminoethyl) piperazine or 4,7-dimethyltriethylenetetramine. An example is given.ALSO:The wet-strength of paper is improved by incorporating therein 0.1% to 5.0% by weight of a cationic thermosetting resin obtained by reacting urea or thiourea with a polyamine containing at least three amine groups, at least one of which is a tertiary amine group, in a mole ratio of the polyamine to the urea or thiourea from 0.7:1 to 1.5:1, to form a polyaminoureylene or a polyaminothioureylene containing amino groups, at least 70% of which are tertiary amino groups, and then reacting the polyaminoureylene or polyaminothiourelylene with epichlorhydrin in a mole ratio of epichlorhydrin to amino groups of from 1.0:1 to 1.7:1. The polyamine may be methylbis(2-aminopropyl)amine, methylbis(2-aminoethyl)amine, N-2(aminoethyl) piperazine or 4,7-dimethyltriethylenetetramine.  An Example is given.
Patent GB-690773-A (GB)
Title: Leavening agents for the production of bread and pastry and process of manufacturing them
IPC: A21D8/04
Filed: 1951-02-19
Abstract: A leavening agent for the production of bread and pastry consists of a mixture of yeast and such an amount of lactic acid bacteria that there are more than one bacterium for each yeast cell, the mixture being of water content 70-80 per cent, and there being at least 15 parts of bacteria, dry weight, to 100 parts of yeast, dry weight. According to an example of the method of producing the leavening agent, a mash of water, rye bran and sugar or molasses prepared at 60 DEG  C. is cooled to 35 DEG  C. by addition of water, the diluted mash is inoculated with a culture on rye bran of lactic acid bacteria, is saturated with carbon dioxide, and is agitated for 15 hr. until the pH has fallen to 3.3; the liquid is then allowed to settle, the top liquid is filtered through coarse fabric and is centrifuged to separate the bacteria; the bacteria are washed by dispersion in isotonic sodium phosphate solution and again centrifuging the dispersion; the bacteria-containing mass so obtained, which has 20-30 per cent dry substance, is mixed with baker's yeast of like content of dry substance in the proportion 20 : 100, and the mixture is caked. In bread making there are used 12-14 g. of this leavening agent per kg. of dough.
Patent GB-200058-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B31/07
Filed: 1923-02-10
Abstract: 200,058. Witkowitzer Bergbau-und Eisenh³tten-Gewerkschaft. June 30, 1922, [Convention date]. Addition to 190,719. Rolling.-The staggered arrangement of bearings of the rolling mill described in the parent Specification is applied to a mill having rolls of ordinary pattern. As applied to the middle roll M of a three-high mill the wobbler portion is removed from the right hand roll journal Z' and a jcurnal Z' housed in a bearing casing e and provided with roller bearings L<2> and thrust bearing d'is secured by means of a sleeve h having a bevelled ring r to throw off cooling water.
Patent GB-888351-A (GB)
Title: Filter for filtering coffee, tea and like beverages
IPC: A47J31/08
Filed: 1960-02-04
Abstract: 888,351. Paper. TODEMANN, H. Feb. 4, 1960 [Feb. 6, 1959; May 30, 1959], No. 4064/60. Class 96. A filter for tea, coffee or other beverages incorporates vitamins. The filter may be of paper or may incorporate or consist of a fleece or fabric of natural, mineral or synthetic fibres. It may be impregnated or coated with the vitamins which in the case of paper, may be added to the paper pulp or finished paper. In the latter case, the additives may be applied only to a selected part of the area where it will be most effective during filtration. The filter may be formed as a tea bag. Vitamins B1, B2, C may be added as thiamine hydrochloride. riboflavin-5<SP>1</SP>-phosphate-sodium and sodium ascorbate. Other substances such as oxalic acid and soluble starch may be included to prevent deterioration of the vitamins. The filters are stored in airtight plastic containers, preferably dark in colour.
Patent GB-251943-A (GB)
Title: Device for delivering limited quantities of a liquid or a gas, with particular three-way valve
IPC: E03D3/10
Filed: 1926-02-12
Abstract: 251,943. Sanitair-Technische Bureau V/K Paff's Patenten. May 7, 1925, [Convention date]. Fixed-chamber apparatus, valve systems for.- A valve device for delivering fixed or limited quantities of a liquid or gas, and particularly applicable for flushing water closets, comprises a three-way plug cock adapted to work in cooperation with an open measuring vessel or air chamber. The plug 2 of the cock has an axial passage 15 and a single side port 21 and works in a casing 1 having an inlet port 8, an outlet port 10, and a chamber 9<1> closed by a cover 11 and connected by a passage 9 to the air chamber 22 or measuring vessel. The plug spindle 16 passes through a stuffing-box 5 and is secured by a screw 12 to an actuating-handle whereby the plug may be rotated to connect the closed air chamber or open vessel 22 either to the inlet 8 or the outlet 10. The effective area of the port 21 is controlled by a piston 18 adjusted in the axial passage by a screw 20 protected by a screwed plug 14. The piston may be replaced by a cone, or a groove may be formed in the wall of the passage. The inlet 34 to the passage 8 is controlled by a spring-loaded non-return valve 24 to prevent water in the chamber 22 flowing back into the main in the event of the main pressure being reduced. The valve 24 is arranged in a symmetrical passage so that the inlet may be arranged on the side more convenient.
Patent GB-159141-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D51/50
Filed: 1921-02-03
Abstract: 159,141. Soc. des AÚroplanes H. et M. Farman. Feb. 19, 1920, [Convention date]. Blocks acting on drums; forcetransmitting mechanism. - In brakes of the kind comprising brake segments adapted to be engaged with the interior of a brake drum by means of a cam, the connecting pivot of the segments is not anchored to the usual fixed disc or equivalent and the cam has the shape of an involute of a circle. As shown in Figs. 1 and 3 the brake shoes or arms 1, 3 have slotted ends 5, 13 which enbrace the spindle of the double cam 2 and are provided with pins 5<1>, 13<1> for engagement by the cam. As the pivot 12 of the arms is free, these arms tend to open and increase the braking action when the brake is applied irrespective of the direction of rotation of the drum. The cam is shaped as the involute of a circle whereby a constant braking action is ensured. The members 1, 3 are held in the disengaged position by a spring 6, 8. The spring 8 is attached to a fixed point 11 and holds the member 1 against a stop 9. In another construction, Fig. 5, the member 1 is pivoted upon the spindle 15 of the single cam 14 which is adapted to engage the end 16 of the member 3. The braking action is not exactly the sam,e for the two directions of rotation of the drum in this case.
Patent GB-1192861-A (GB)
Title: Improvements in Variable Speed Induction Motors
IPC: H02K17/24
Filed: 1968-01-26
Abstract: 1,192,861. Induction motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 26 Jan., 1968 [27 Jan., 1967], No. 4193/68. Heading H2A. In a change-speed induction motor, especially for washing machines, the speed range of rotor 4 is increased by the use of the sum and difference of two slightly different flux speeds. The flux speed of one member could be reduced by leaving some slots unwound. But preferably the flux speed of stator 1 is slightly reduced by removing some of the stator teeth at 24, see Fig. 2, and crowding the windings into the remaining slots so that the effective pole-pitch is reduced. The rotor 4 carries a normal primary winding, and the two field systems are linked by a freerunning squirrel-cage intermediate rotor 8. Thus the two flux speeds are 2700 R.P.M. and 3000 R.P.M. respectively, giving speeds of 5700 R.P.M. and 300 R.P.M., i.e. a ratio of 1: 19. The intermediate rotor preferably has two separate squirrel-cages 9, 10 and these support the rotor by means of end shields 11 and 12 which also act as fans. The brush-gear is fully encapsulated. The motor may be of shaded-pole or capacitor type and either or both primary winding may have 2:1 polechanging to extend the speed-range. Both primary windings may be energized together in series or parallel, and either may be D.C. excited through a rectifier (Fig. 4, not shown) to produce the effective speed of one or other primary flux. The capacitor may be used for resonant self-excitation of either member, the speed being controlled by resistors.
Patent GB-965654-A (GB)
Title: Improvements in windscreen wipers
Inventor: VICKERSON GEORGE ERNEST
IPC: B60S1/38
Filed: 1960-02-05
Abstract: 965,654. Windscreen wiper blades. TRICO-FOLBERTH Ltd. Feb. 6, 1961 [Feb. 5, 1960], No. 4203/60. Heading A4F. A windscreen wiper blade comprises a harness 10 backing strip 6 and a wiper rubber arranged so that the wiping lip on the rubber rocks during wiping about a rocking axis or neck 8, and the rubber is formed with lateral fins of rows of projections 2 which engage the windscreen substantially in a plane passing through the neck 8 and normal to the windscreen on the application of sufficient wiping pressure, thus limiting lay over of the wiping lip in conditions of exessive drag without the wiping lip losing contact with the windscreen. A bead 4 anchors the rubber in the backing strip 6 and flanges 14 prevent claws 9 holding the backing strip 6 on the harness 10, from touching the windscreen. The triangular enlargement 3 may be cut away at each pair of claws 9 as shown by dotted lines in Fig. 5 to improve the distribution of wiping pressure along the rubber. Specification 733,626 is referred to.
Patent GB-740100-A (GB)
Title: Improved air filter for internal combustion engines
IPC: F02M35/04
Filed: 1954-02-12
Abstract: 740,100. Treating charge; ventilating crankcases. TECALEMIT. Ltd. Feb. 12. 1954 [Oct. 8, 1953]. No. 4236/54. Class 7(2) An extension tube 3 of a crankcase oil filler 4 arranged in the upper part of an engine block, e.g. in a push-rod casing, extends through an outer casing 1 of an oil-bath filter, which casing 1 has a zone 12 connected to the engine air induction system and to the interior of the tube 3 as via an annular gap 11 between two sections thereof. Crankcase fumes, together with air entering via an inwardly flanged opening 2 in the casing 1, thus passes to a carburetter through the filter which, in addition to the oil bath. in the casing bottom, has filtering material 10 contained between metal gauze plates 8, 9.
Patent GB-876853-A (GB)
Title: Improvements in or relating to vapour vacuum pumps
Inventor: POWER BASIL DIXON
IPC: F04F9/00
Filed: 1957-02-07
Abstract: 876,853. Steam traps. EDWARDS HIGH VACUUM Ltd. Feb. 6, 1958 [Feb. 7, 1957], No. 4282/57. Class 64(2) [Also in Group XXVIII] In a diffusion pump, the return line for the condensed vapours flowing to the boiler is provided with a device to allow flow of the condensed vapours while preventing the flow of uncondensed vapours. A plug 1 provided with a piston head 2 is housed in a cylinder or well 3 which acts as a liquid reservoir, an O ring seal 4 being provided. The plug has a central duct 5 which communicates with a duct formed between the surfaces of the plug 1 and cylinder 3 by the stepped bottom 6 of the plug, this latter duct communicating by a drain passage 8, main body 7 and tube 10 with the pump boiler. When the pump is in operation condensed vapours from a condenser 9 flow through the duct 5 to the pump boiler and from the reservoir in the .well 3 between the duct 5 and drain passage 8 which prevents the flow of vapours. The duct 5 is tapped at 12 to facilitate removal of the plug for cleaning. The plug 1 may be in the form of a set screw, provided with a central axial hole, without threads on the major portion of its shank, but a few threads under its head, the plug being screwed into the cylinder and sealed by means of a flat washer.
Patent GB-1107737-A (GB)
Title: Hydrazino-substituted benzoic acid lactones which exhibit estrogenic activity
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107737/C2/1> wherein A is -CH2-CH2- or -CH=CH-, R is H, alkyl, aryl, bromoaryl, acyl or aralkyl, the R's being the same or different, and R1 is H, alkyl, carbamyl, aryl or nitroaryl, may be prepared from the compound <FORM:1107737/C2/2> by heating with the corresponding hydrazine derivative of formula H2NNHR1, where R1 is as defined above, in an acidic or neutral medium, with the optional steps of hydrogenation of the olefinic bond and/or etherification or acylation of the OH groups.  Therapeutic compositions having estrogenic and growth-promoting activity comprise a compound of the first formula given above, together with a suitable diluent, and may take the form of an animal feed, or an injection suspension in, e.g. peanut oil. Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-1495710-A (GB)
Title: Apparatus and method for producing branch passages from an elongate passage in a workpiece
IPC: B23H9/14
Filed: 1974-01-30
Abstract: 1495710 Electro-erosion ROLLS ROYCE Ltd 16 Jan 1975 [30 Jan 1974] 04333/74 Heading B3V [Also in Division C7] In a method of producing a branch passage 12 from an elongate passage 13 in a workpiece 10 by electrical discharge or electrochemical machining, a wire electrode 21 is fed through a hollow insulated guide 16 having a curved end 20 positioned within the elongate passage 13. A transverse passage 12 is produced between longitudinal cooling passages 13, 14 of a turbine blade 10 by feeding a copper electrode wire 2 through an insulated guide tube 16 which is held against the wall of the passage 13 by a spacer 19. The wire 21 is initially fed through the tube 16 by rollers 23, 24 mounted on a carriage 28 and is fed forward during machining by a hydraulic piston 27 moving the carriage 28 in response to the machining gap voltage. Kinking of the electrode 21, which is vibrated during machining, is prevented by surrounding it with a spring (42) (Fig. 5, not shown) positioned between the rear end of the guide 16 and the end of a groove (39) in the carriage 28. Break through of the electrode 21 is detected when it makes electrical contact with a rod 32.