baber/WOPTO huggingface dataset:
Patent GB-487452-A (GB)
Title: Improvements relating to oil circuit breakers
IPC: H01H33/14
Filed: 1937-04-19
Abstract: 487,452. Oil-blast switches. DAVIES, D. R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. April 19, 1937, No. 11161. [Class 38 (v)] A circuit-breaker has two (or more) pairs of mating contacts arranged in parallel, the moving contacts 1, 2 being arranged for simultaneous operation by the insulating cross-bar 9 and rod 10, and the breaks between them and their corresponding fixed contacts 3, 4 being either in the same explosion chamber or, as shown, in separate explosion chambers 7, 8, the explosion spaces whereof intercommunicate. The chambers shown are of the crossjet type, and contact 2 is slightly longer than contact 1, so that arcing is mainly confined to contacts 2, 4, but any arc that may occur between 1, 3 will be extinguished by the chamber 7 assisted by the pressure set up in chamber 8. In the closed position, both contact-pairs carry the load. Contacts 3, 4 are supported on a common base 5 supported on an insulator 6 projecting through the container-base. Contacts 1, 2 are guided in sleeves 11, 12 which are mounted on a support 13 and serve with 13 as current-connections. The container may be either cylindrical or, with two pairs of contacts as shown, of elliptic cross-section, and the connections may be led into and out of the container in the manner disclosed in Specification 395,088.
Patent GB-496456-A (GB)
Title: Means for attaching buttons, press studs, club badges or like articles to fabric or the like
IPC: A44B1/40
Filed: 1938-04-12
Abstract: 496,456. Affixing buttons, press studs, &c. ZELLWEGER, R., and MEZZADRI, E. April 12, 1938, No. 11188. [Class 43] [Also in Group XXV] Buttons, press-stud parts, &c. are detachably affixed to garments &c. by means of an undulated spiral or circular pin. The pin 6 is preferably attached to a base 1 of the same diameter as the convolutions of the pin, and having a neck 2 to accommodate a buttonhole. The button, badge, &c. 5, is attached to the base 1. The face of the base may be shaped to fit the undulations of the pin as at 1<1>, Fig. 4. To prevent the button turning and thereby becoming detached, it may be provided on its periphery, with a slidable wire ring 20. Alternatively, the button may be attached to its base through corrugated clutchlike members 21, 22, so that the button is normally free to rotate, but can be gripped rigidly for attachment or detachment.
Patent GB-670553-A (GB)
Title: Improvements relating to speed control systems of propeller driven craft
IPC: B64C11/44
Filed: 1945-05-02
Abstract: 670,553. Gas turbines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and ADAMS, H. F. T. March 28, 1946. [May 2, 1945] No. 11189/45. Divided out of 670,552. Drawings to Specification. Class 110(iii). [Also in Groups XXVII, XXIX. XXXIII, XXXV and XXXVIII] The subject-matter described is the same as that in Specification 670,552 but the claims differ.
Patent GB-829111-A (GB)
Title: Control system
IPC: G05D1/00
Filed: 1956-04-13
Abstract: 829,111. Automatic aircraft control systems. BENDIX AVIATION CORPORATION. April 13, 1956 [April 21, 1955], No. 11355/56. Class 38 (4). A motor displacing an object through a transmission is controlled by a control signal, a negative feed-back signal dependent on displacement of the object or a point of the transmission near the object, and a positive feed-back signal dependent on displacement of the motor or a point of the transmission substantially nearer the motor than the first point. As shown, deviations in the pitch attitude of an aircraft are detected by a vertical gyro 10, signals from the inductive pick-off 13 of which are applied through an amplifier 16 to operate a reversible servomotor 17 correcting pitch by controlling elevators 33 through actuating- mechanism 31, 32. A positional follow-up signal is fed back to the input of amplifier 16 from an inductive device 50 operated with the elevators and the system is damped by rate feed-back from an A.C. generator 18 operated by servomotor 17. Further negative feed-back from an inductive device 21 operated by servomotor 17 is normally exactly or approximately cancelled by positive feed-back from a further inductive device 40 operated by the servomotor so that when a switch 25 is opened to deenergize an electromagnetic clutch 30 and thereby disengage automatic control, inductive device 21 provides the positional follow-up necessary to maintain a null input to amplifier 16 in readiness for re-engagement of automatic control without shock at any time. While the automatic control is disengaged the elevators may be controlled by a manually-operated lever 61. The opening of switch 25 also de-energizes electromagnetic clutches 26 and 28 to uncouple inductive devices 40 and 50. Specification 662,831 is referred to.
Patent GB-240087-A (GB)
Title: Improvements in the manufacture and production of formamide
IPC: C07C233/01
Filed: 1925-05-01
Abstract: Formamide is made by the action of ammonia on an alkyl formate at a pressure exceeding atmospheric pressure.  Liquid ammonia is preferably used, but gaseous ammonia or a strong aqueous ammonia may be employed; in the latter case more or less ammonium formate is formed at the same time.  When the pressure is released the heat of the reaction serves to evaporate the alcohol formed, leaving a residue of nearly pure formamide.  Methyl formate, which may be obtained by the action of carbon monoxide on methyl alcohol or as a bye-product in the catalytic hydrogenation of oxides of carbon to methyl alcohol, is the alkyl formate preferably employed.  The alkyl formate may be produced in the same reaction chamber as the formamide by the action of carbon monoxide on methyl alcohol in the presence of an alkali metal or alcoholate; the ammonia required for the production of formamide being introduced at the same time or subsequently.
Patent GB-1454094-A (GB)
Title: Magnetic separator
IPC: B65G47/92
Filed: 1973-03-09
Abstract: 1454094 Magnetic separation BRITISH STEEL CORP and LAMBERTON & CO Ltd 8 March 1974 [9 March 1973] 11442/73 Heading B2J [Also in Division H1] Apparatus for unscrambling a group of lengths 21 of ferromagnetic material, e.g. steel blooms or billets, into an ordered arrangement comprises a rotable support 10 carrying at least two magnetic poles 15, 16; discs 12 attached to and rotatable with the support 10 means such as a pusher 22, a sloping ramp, a walking beam bed or chain slings, for urging the lengths 21 laterally towards and against the discs 12; a motor for rotating the support 10 whereby a length 30 magnetically attracted against the surface 12 is lifted and carried from the group of lengths 21 to the other side of the support; means 27, e.g. a rigid abutment, for disengaging the length 30 from the magnet poles; and a roller conveyor 25 for transporting the separated lengths 31. The magnetic poles may be those of a permanent magnet or of an electromagnet. The disengaging means may comprise a resistance or circuit breaker to interrupt or reduce the energisation of the electromagnets or, may include an auxiliary coil energisable to produce an opposing magnetic field if the magnets are of the permanent type. Limit switches such as 32 may be provided to ensure that only one length is lifted simultaneously.
Patent GB-438569-A (GB)
Title: Collapsible box
IPC: B65D6/16
Filed: 1935-04-13
Abstract: 438,569. Boxes. CARTER, W. H., 5, Addington Drive, North Finchley, London. April 13, 1935, No. 11457. [Class 18] A collapsable box having separate end and side walls has right angled metal lugs a<3> attached to the bottom, lugs b<1> attached to the side walls and so arranged that adjacent lugs a<3>, bl are in contact, lugs b<2> or right angle strips b<3> attached to the side walls so as to embrace the end walls and lugs c<1> attached to the end walls so as to engage beneath the bottom. Lugs a<4> engaging the end walls are also provided upon the bottom.
Patent GB-217385-A (GB)
Title: Improvements in easy chairs, lounges, settees and the like
IPC: A47C7/14
Filed: 1923-04-27
Abstract: .217,385. Boliston, G. C. April 27, 1923. Frames for easy chairs. The sea frame 1 is provided at the front witl short Jegs which are hinged to correspond ing legs 6 on the underframe 7, anc is supported at the rear by vertically disposed helica springs 12 Interposed between adjacent horizontal rails 10, 11 on the seat and underframe respectively.
Patent GB-775001-A (GB)
Title: Improvements in or relating to shower baths
Inventor: GRAHAM THOMAS WALTER WEIR BROW
IPC: A47K3/28
Filed: 1953-04-28
Abstract: 775,001. Shower baths. GRAHAM & SONS, Ltd., T. May 28, 1954 [April 28, 1953], No. 11651/53. Class 26.  A shower bath comprises a base 11 for receiving the water, a cubicle 10 rigidly connected to the base, a seat 17 within the cubicle, a spray device 21 mounted within the cubicle and a thermostat 24 controlling the water temperature and accessible from the seat. The spray device 21 includes a swivel rose 28, and a handle 29 is provided, thus making the bath particularly suitable for aged and infirm persons.
Patent GB-1412274-A (GB)
Title: Radioactive determination of serum thyroxine
IPC: G01N33/78
Filed: 1973-03-15
Abstract: 1412274 Estimation of serum thyroxine BIO-RAD LABORATORIES 15 March 1974 [29 May 1973] 11758/74 Heading G1B Serum thyroxine (T-4) is estimated by separating T-4 from blood serum by contacting with sufficient montmorillonite clay under acid conditions to adsorb the T-4, separating the clay and eluting the T-4 therefrom (e.g. by elution under alkaline conditions) and competitively binding the eluted T-4 with a thyroxine binding material (e.g. pooled human serum) in the presence of radio-active T-4. Thereafter, the T-4 may be estimated by measuring the residual radio-activity in the bound or unbound fractions after these have been separated. A preferred clay is bentonite and the elution of adsorbed T-4 and competitive binding steps may be performed concurrently.  Separation of bound and unbound T-4 may be achieved by use of an appropriate column of ion-  exchange resin e.g. a styrene-divinyl benzene anion exchanger or an ion retardation resin containing paired anion and cation exchange sites.
Patent GB-455608-A (GB)
Title: Improvements in golf clubs
IPC: A63B49/08
Filed: 1935-04-17
Abstract: 455,608. Golf clubs. ROBERTSON, J. F., 19, North St. Andrew Street, Edinburgh. April 17, 1935, No. 11800. [Class 132 (ii)] A tubular golf club shaft is provided with a detachable closure member at the upper end thereof comprising a screw threaded plug 3, Fig. 1, engaging with an internal screw thread 2. The plug 3 has a cap 31 provided with a shoulder 4 abutting the top of the shaft, the cap being formed on top of the screw head as shown in Fig. 1, and made of rubber or other resilient material or the resilient cap 8 may be secured over the head of the screw as shown in Fig. 4. Caps may be made in different colours or coloured rings may be inserted between the screw top and the end of the shaft. The screw thread on the shaft may be formed by pressing and may be strengthened by longitudinal ribs 17, Figs. 2 and 3, extending the length of the threaded portion. Reference has been directed by the Comptroller to Specification 194,823, [Class 123 (ii)].
Patent GB-1293183-A (GB)
Title: Improvements relating to friction welding and other machines
Inventor: WOODALL ALAN
IPC: B23K20/12
Filed: 1969-03-06
Abstract: 1293183 Welding by pressure JOHN THOMPSON (PIPEWORK & ORDNANCE DIVISION) Ltd 6 March 1970 [6 March 1969] 11845/69 Heading B3R In a friction welding machine the reaction load resulting from pressure contact of the workpieces 12, 16 is borne by a member 20 which passes through the machine bed 17 below the support surface thereof, the member 20 being arranged so as to be able to deflect without transmitting any significant bending load to the machine bed 17. Thus correct alignment of the parts 12, 16 is maintained.
Patent GB-817664-A (GB)
Title: Improvements in or relating to sheet registering apparatus
IPC: B41F21/05
Filed: 1957-04-11
Abstract: 817,664. Feeding sheets. SCHNELLPRESSENFABRIK AKTIENGESELLSCHAFT HEIDELBERG. April 11, 1957 [Dec. 7, 1956], No. 11865/57. Class 100(1) In apparatus for feeding sheets 5 from a feed-board 4 to the impression cylinder 1 of a printing-machine, employing sheetgrippers 2 carried by a cross-bar 6 secured to arms 11, 11a which oscillate with a shaft 12, the sheets are registered at the front on the feed-board 4 by a slight backward movement imparted to front stops 3 in two distinct stages substantially in the line of the feed direction, the stops being then oscillated in a plane approximately at right angles thereto to clear the sheets. The stops are carried on a shaft 16 which is supported by arms 15, 15a rotatably mounted on the oscillating shaft 12 for movement independently of the grippers 2. Each gripper 2 is held in closed position by a compression spring 7, and is opened in known manner by a lever 8 mounted on a shaft 9 journalled in the gripper bar 6. The arms 15, 15a are rotatably mounted on the ends of bearing bushes for the shaft 12. Rocking movements are imparted to the shaft 16 and stops 3 relatively to the supporting arms 15, 15a by a fixed cam disc 25 which acts on an arm 23, fixed to a rotatable pin 22 in the machine frame 13a, to rock a lever 21 having a machined cam face in engagement with a roller on an arm 19 secured on the shaft 16. The shaft 16 has an arm 26 secured thereto which engages a stop on the arm 15 whereby the register stops 3 can be adjusted higher or lower relatively to the feed-board 4 to suit the thickness of the sheets 5. The first slight backward movement of the stops 3 to register the sheets 5 is affected by giving a swinging movement, about the shaft 12, of the arms 15, 15a carrying the stop arrangement. To this end, links 35, 35a pivoted to the arms 15, 15a, respectively, are pivoted to arms 33, 33a secured to a shaft 32 which is rocked from a fixed cam disc 29 through a roller 31 and lever 30. An additional backward movement is imparted bodily to the stops 3 by the gripper bar 6 which, in the final stages of its movement towards the feed-board 4 with its grippers 2 still open, engages the shaft. 16 by means of stop-screws 37, 37a, so that the grippers and stops move together as one unit just before the grippers close on a sheet. When grippers have closed, the stops 3 swing to a higher position, and remain there until the sheet has cleared the feed-board 4.
Patent GB-737217-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F9/22
Filed: 1953-04-30
Abstract: 737,217. Heating air for combustion. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. April 30, 1953 [April 30, 1952], No. 11976/53. Class 64 (1). In a heat exchanger comprising a plurality of adjacent chambers through which a fluid to be heated is directed over heating tubes, each chamber is subdivided by partition walls into individual channels, and the individual channels of adjacent chambers are so interconnected that the temperature gradient in each chamber is substantially constant. In the form shown, air is heated by passage through a plurality ot superimposed chambers, e.g. 3, 5, through which extend tubes 1 carrying a heating gas. Adjacent chambers inter-communicate through a channelled duct 4, the arrangement being such that heated air from the lower region of one chamber (e.g. the chamber 3) is passed by way of a channel 13a in the duct 4 into the lower region of the succeeding chamber 5 and air from the upper region of the chamber 3 is passed by way of other channels 12a, 12b in the duct 4 (see Fig. 3) to the upper region of the succeeding chamber, and so on, so that air which has been heated by the hottest gas in one chamber is again heated by the hottest gas in the next chamber and vice versa. Valves 19, 20 enable one set of interconnected channels to be isolated if necessary, for cleaning purposes and may be disposed at the entrance to the lowermost chamber 3 (as shown), or in the channels of the duct 4.
Patent GB-570042-A (GB)
Title: Improvements in or relating to the manufacture of lactonitrile
Filed: 1941-09-19
Abstract: Hydrocyanic acid is reacted with vinyl acetate in the presence of an alkaline catalyst to give lactonitrile acetate.  Preferably, acetaldehyde is also present.  Both organic and inorganic alkaline substances are mentioned as catalysts, e.g. alkali metal and alkaline earth metal hydroxides and cyanides and alkylamines having alkyl groups with 1-4 carbon atoms.  Diluents may be employed, and preferably lactonitrileacetate itself is used as the diluent.  In examples: (1) a vertical stainless steel coil is filled with lactonitrileacetate containing 1 per cent of powdered potassium cyanide and a mixture of vinylacetate, acetaldehyde and hydrocyanic acid is continuously fed into it from above; the reaction product passes into a reservoir which is provided with means for removing clear lactonitrile acetate from the top and with a pump at the bottom which returns the product containing suspended catalyst to the top of the coil; (2) the reaction is carried out as in example (1), but triethylamine is used as the catalyst, the catalyst removed with the product being replaced; (3) liquid hydrocyanic acid is added to a mixture of vinylacetate and potassium cyanide in a heated vessel provided with a stirrer and a reflux condenser; (4) vinylacetate, liquid hydrogencyanide and fused sodium acetate are heated in a sealed nickel pressure vessel.
Patent GB-527858-A (GB)
Title: Helical devices for moving a plurality of bars
IPC: B42F17/02
Filed: 1939-04-21
Abstract: 527,858. Displaying. SOC. D' FXPLOITATIONS DES BREVETS CODEL. April 21, 1939, No. 12068. Convention date, April 21, 1938. [Class 3 (i)] [Also in Group XXIV] Means for moving a number of parallel bars, for holding, e.g., records, indexes and the like, in the same plane and within a frame comprise a rotatable helical spring-like coil at each of two opposite sides of the frame and a projection at each end of the bars entering a space between adjacent coils. The frame 1, of channel iron, has two vertical sides of which one, la is shown. In each of these sides is a coil spring 4 centred at the top of a projection 5 and rotatable by a knob 6 at the bottom. Each bar 2 has at its ends a projection 2b which protrudes into a space between the coils, and a shoulder 2a at each end of each bar slides on the inner edges of the vertical walls which, at their upper ends, are formed with apertures 7 to enable the bars to be inserted. The actuating means for the coils may be geared together for equal and simultaneous movement.
Patent GB-272021-A (GB)
Title: Improvements in and relating to machine sieves used in the manufacture of paper
IPC: D03D25/00
Filed: 1926-05-10
Abstract: 272,021. Keller, W. May 10, 1926. Wire cloths. - The fabric used for machine sieves used for the manufacture of paper is so woven that the weft and warp threads are equally bent, as shown in Fig. 1, the highest points of the bent weft and warp threads each lying in the same plane. The paper thus rests equally on the warp and weft and these are equally worn. A loom for weaving the fabric is described.
Patent GB-927038-A (GB)
Title: A new and improved attachment for a power-operated lawn-mower
IPC: A01D34/62
Filed: 1961-04-05
Abstract: 927,038. Lawn-mowers. C. A. WILKEY. April 5, 1961 [Oct. 21, 1960], No. 12098/61. Class 6(2). A trailer for attachment to a power mower comprises a frame 10 mounted on a roller 20 and carrying a platform 16 on which the operator stands, the frame being coupled to the mower by means of a drawbar 11 connected through a universal joint 21 to the rear of the mower. A chain 37 attached to the frame and passing through rings on the mower handles engages a hook 35 incorporated in a bolt device 26 attached to the handles to tension the chain and raise the trailer clear of the ground, a hook 40 adjustably fixed to the drawbar engaging the mower handles to secure the trailer in its raised position. A vertically adjustable rake 46 is provided behind the roller.
Patent GB-1028674-A (GB)
Title: Copying material for use in the photomechanical preparation of printing plates
IPC: G03F7/021
Filed: 1963-03-27
Abstract: Diphenylamine-4-diazonium salts are condensed with aldehydes or ketones in an acid medium to produce a polyfunctional condensation product.  Specified aldehydes and ketones are acetaldehyde, benzaldehyde, cinnamaldehyde, naphthalene-1-aldehyde, pyridine-3-aldehyde, paraldehyde, quinoline-4-aldehyde, acetone, butanone, di-isobutyl ketone, acetophenone and pyroracemic acid. Specified diazonium compounds are the 4-diazonium sulphate, chloride or phosphate of diphenylamine and 3 - methoxy - diphenylamine - 4 - diazonium sulphate and the acid medium is sulphuric, phosphoric or hydrobromic acid.
Patent GB-252032-A (GB)
Title: Improvements in shoe insoles
IPC: A43B17/04
Filed: 1926-05-11
Abstract: 252,032. Kukirol-Fabrik K.. Krisp. May 11, 1925, [Convention date]. Void [Published under, Sect. 91 of the Acts]. Electric appliances.-An insole for a boot or shoe adapted to generate electric currents by moisture from the foot consists of a piece of wire gauze b formed of interlacing copper and zinc wires enclosed between two pieces of fabric such as flannel and cork. The parts are held together by an edging c. The gauze may extend over the whole or a part only of the insole. Each of the copper wires may consist of several fine wires twisted together.
Patent GB-774618-A (GB)
Title: Improvements in the production of photographic images
IPC: G03C1/35
Filed: 1955-04-29
Abstract: A compound probably 3-phenyl-2-thio-thiadiazoline-5-thiol is obtained as potassium salt by reacting phenyl hydrazine with potassium xanthate.
Patent GB-386193-A (GB)
Title: Improvements in or relating to sliding clasp fastenings
IPC: A44B19/36
Filed: 1932-04-29
Abstract: 386,193. Sliding-clasp fastenings. JORDAN, K. R., Ludenscheid, Westphalia, Germany. April 29, 1932, No. 12408. Convention date, Feb. 6. [Class 44.] A lock d, preferably of the kind employed for leather bags or cases and the like, is fixed to one stringer of a sliding-clasp fastening immediately adjacent to the interlocking fastening members thereon at the end of which the slider e is located when the fastening is in the closed position and a locking member b is fixed to the other stringer so as to engage the mouth or opening of the lock d. The members b, d may be mounted on supporting strips a, c, fixed to the stringers and the ends f of which may be tapered towards the interlocking members of the fastening so that the slider e can slide on the supporting strips thereby drawing the supporting members towards one another and guiding the locking member forcibly into the lock. The supporting strip c may be provided with a lug g which engages an opening or recess h in the other strip a so that the member b is brought into correct position with respect to the mouth or opening of the lock d. The lock d may be rigidly fixed to the strip c or pivoted thereto.
Patent GB-269740-A (GB)
Title: Improvements in combined caps and suspenders for brooms, brushes, mops and such likearticles
IPC: A47L13/512
Filed: 1926-05-14
Abstract: 269,740. Hodgson, F. May 14, 1926. Hanging up, means for; grip, facilitating. - A device for giving a better grip on the handle of a broom, brush, mop, &c., and for hanging it up when not in use consists of a cap A which may be crinkled, ribbed, or fluted, adapted to be forced on the end of the handle, and fitted with a pivoted suspension loop B.