baber/WOPTO huggingface dataset:
Patent GB-447627-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/10
Filed: 1935-02-20
Abstract: 447,627. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., Chase Road, North Acton, London, and BOURN, L. E. A., 22, Stanwell Road, Ashford, Middlesex. Feb. 20, 1935, No. 5456. [Class 88 (ii)] In an electrical musical instrument the loudness of a note depends on the speed of the depression of the key or the like. The phonic ring electrode 1 of an electrostatic instrument such as is described in Specification 403,444 or 433,050 is charged to the desired potential on which the loudness depends, by a condenser 3 which is partially discharged during the period of the key-depression. The key 4 first disconnects the condenser from the source 5 by breaking contacts b, a and connects it through normally closed contacts e, d to a leak 6 by closing contacts b, c. Towards the end of the key movement contacts e, d are broken and contacts e, f made connecting the condenser to the electrode 1.
Patent GB-781614-A (GB)
Title: Improvements in or relating to electric branch connections
Inventor: THOMPSON HAROLD
IPC: H01R4/18
Filed: 1955-02-23
Abstract: 781,614. Jointing by forging. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 22, 1956 [Feb. 23, 1955], No. 5490/55. Class 83 (4). [Also in Group XXXVI] A branch connector comprises a pair of channelled T-shaped members 1 of malleable metal united at their head portions by a web 4 about which they are bent to form sleeves for main and branch conductors 8, 9. A sleeve 10 threaded on the branch conductor is then slid over the legs 3 of members 1 to hold them together whilst the ends of the head portions, and the sleeve, are compressed by dies to cause the members to grip the conductors. Specification 762,784 is referred to.
Patent GB-875354-A (GB)
Title: Improvements in or relating to the production of l-lysine
Inventor: GORTON BERT SORELLE
Filed: 1960-02-16
Abstract: D-Diaminopimelic acid is converted to L-lysine by racemizing said D-diaminopimelic acid by heating it in the presence of an aqueous solution of a non-oxidizing acid which forms salts of amino acids, and subjecting the racemized diaminopimelic acid to enzymatic monodecarboxylation.  The process may be applied to chemically synthesised diaminopimelic acid by first subjecting it to enzymatic monodecarboxylation in order to convert the L-isomer into L-lysine. D-Diaminopimelic acid remaining after each enzymatic monodecarboxylation stage may be subjected to a further racemization treatment.  Suitable nonoxidizing acids are hydrochloric, sulphuric and phosphoric acids and ion exchange resins in the acid form. Enzymes for the enzymatic decarboxylation may be derived from Aerobacter derogenes ATCC 12409 and 8724, Bacillus sphaericus ATCC 10208, Escherichia coli ATCC 12408, Sarcina lutea ATCC 1001 and Sarcina urea ATCC 6473. An example describes the preparation of a suitable enzyme by culturing Aerobacter aerogenes ATCC 12409 in a medium containing ammonium phosphate, glucose and cornsteep liquor, recovering the cells by centrifugation, treatment with acetone and air drying. Specification 875,353 is referred to.
Patent GB-398733-A (GB)
Title: Improvements in or relating to carpets or rugs
IPC: A47G27/02
Filed: 1933-02-23
Abstract: 398.733. Warp-pile carnets &c. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Bigelow-Sanford Carpet Co., Inc. ; Thompsonville, Connecticut, U.S.A.) Feb. 23, 1933, No. 5531. [Class 142 (iv).] A reversible carpet &c. has one tread surface comprising pile tufts which may be coloured to form a design, and an opposite tread surface comprising soft padding wefts 2, which may be printed or stencilled to form a design. The fabric has straight stuffer warps 4 passing above the wefts 2 and below the anchoring- wefts 5 for the tuft yarns and also below separating wefts 6 lying between the rows of tufts. The tuft yarn loops rest on the padding wefts, which are bound to the anchoring-wefts 6 by binder warps 7, whilst warps 8 bind the wefts 5, 6 together. The padding wefts are thereby held in contact with each other and conceal the interior structure of the fabric. They may be of soft spun cotton twisted to form ply yarns. Hard twisted wefts 9 are used therewith to resist the cutting action of the yarns 7.
Patent GB-106297-A (GB)
Title: Improvements in or relating to Lasting Machines.
IPC: A43D21/12
Filed: 1916-04-15
Abstract: 106,297. British United Shoe Machinery Co., (United Shoe Machinery Co.). April 15, 1916. Lasting.-In a lasting-machine, particularly of the type described in Specification 22,630/08, in which there is movement between the last and endembracing means in the direction of the height of the last to shape the upper to the opposite sides of the last, means are provided so as to produce, as an incident to this movement, a movement of the end-embracing means bodily in a direction transverse to the height of the last and also to the longitudinal line of the last. The invention is described as applied to a machine having the general organization of the machine described in Specifications 22,630/08 and 18,524/10, the toe-lasting head being supported on a plate 13 mounted above a plate 10, which is adjustable longitudinally of the machine in the usual manner for lasts of different lengths. The plate 13 has a tongue and groove connexion with the plate 10 and is extended at 131 to form a bearing in which is mounted a 'slotted block 60, angularly adjustable by means of a crank 64 and a screwed rod threaded through an extension 132 of the plate 13. An horizontal rod 62 fixed to the frame of the machine extends through the slot in the block 60, and, as the toe-lasting mechanism is raised, the action of the rod on the slot will move the lasting-head transversely of the machine. The block 60 is adjusted to change the direction of the inclination of its slot for rights and lefts, and in Fig. 2 a construction is shown for effecting this change automatically by swinging movement of the heel-lasting mechanism, this movement being permitted by a construction substantially similar to that described in Specification 22,630/08. A link 71a is pivoted to the swinging member of the heel-lasting mechanism and to a lever 80 pivoted between its ends at 81 to a bracket 76, which is fixed in a member 79 rotatable on a post 179; the short arm of the lover 80 carries a pin 83 in engagement with a notch in one end of a pivoted angle-lever 87, the other end of which is slotted to receive a block 91. This block is pivoted on a block 93 adjustably mounted on a screw 105 in a slot 95 formed in an arm 101 fixed on a rock-shaft 103, which is journaled in the member 79 and in a bracket 107 on the toe head, and is formed with flat sides to engage the slot in the block 60. The movement of the swinging member of the heel-lasting mechanism through the connexions described rocks the shaft 103 and automatically swings the block 60 for rights and lefts, the shaft then acting in a similar manner to the rod 62 to effect lateral movement of the lasting-wipers during their upward movement.
Patent GB-594012-A (GB)
Title: Improvements in or relating to cartridges for the projection of flame
IPC: F42B8/04
Filed: 1945-03-07
Abstract: 594,012. Cartridges. FLANDERS, J.. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 7, 1945, No. 5648. [Class 9 (i)] A blank cartridge adapted to project a stream of flaming matter about one foot long from a firearm comprises a metal cartridge case 1 having a percussion cap 9 and an inner metal tube 2 containing compressed flame composition 3, an igniter wick 4 leading from the percussion cap to the filling at the mouth of the tube 2 and a waterproof disc 7 closing the cartridge and locating the tube 2 endwise. The wick 4 passes through slots 5 in the mouth of the tube 2. The disc 7 is held by the turned-over edge 8 of the cartridge through the intermediary of a brass washer 6.
Patent GB-458299-A (GB)
Title: Improvements in filing systems for cards, sheets or other recording material
IPC: B42F17/02
Filed: 1936-02-25
Abstract: 458,299. Filing papers. ROSEN, N. I., 8, Skogsliden, Stooksund, Sweden. Feb. 25, 1936, No. 5665. [Class 146 (i)] In an improved filing system for cards, sheets, or other recording material, arranged vertically side by side on a support or superposed in the form of a book, in which separators are placed between and protrude outside the margin of the cards, the separators consisting of stiff members, e.g. of sheet steel, are swingably mounted in the bottom or back of the device beside and obliquely behind each other in rows. The separators 4 are hinged on wires 5 whose ends are engaged under the card-supporting fillets 1 on a base 3. Several separators may be pivoted on each wire 5 and are arranged to overlap each other; to prevent interference between their hinge portions 6 they are notched at 14. They are also notched at 15 at their free ends and may carry index characters. Alternatively, the index characters mav be carried fixedly or slidably on the transverse members 17 of partitions, arranged between each set of separators and either pivoted to the wires 5, or retained by engaging hookshaped ends of limbs 16 into undercut grooves in the fillets 1. The lower ends of the separators may be formed with bayonet slots to engage channel members arranged longitudinally on the base 3, or may be punched as at 7, Fig. 9, to engage lugs 9 on strips 8 arranged transversely of the base. The lugs 9 may be hinged to the strips 8 or mounted on angle brackets sliding between blank strips 8. Several blank strips 8 may be mounted between each pair carrying lugs. The separators may be arranged at an angle to their hinge-lines and may be resiliently clipped in groove members 12, Fig. 16, retained on the base by a rod 19 extending under the fillets 1. The members 12 may lie at an angle to the transverse direction of the base. The partitions 16 may be provided with cylindrical bases 18, Fig. 23, spaced by members 27 and retained beneath a resilient plate secured to one side of the base 3. The wires 5 carrying the separators, partitions, and rear cover may be clamped against tubes 31, Fig. 20, by rotatable square rods 29. One edge 30 of the rods 29 is chamfered and grooved or padded, and the rods are rotated by links actuated by a lever on an end wall support. The case may be provided with handles and the outermost of the partitions may be in the form of covers, one, at least, of which may be adjustable.
Patent GB-1369961-A (GB)
Title: Flight data display system
IPC: G05D1/06
Filed: 1973-02-05
Abstract: 1369961 Flight data display system THOMSON CSF 5 Feb 1973 [8 Feb 1972] 5670/73 Heading B7W  A flight data display system in an aircraft comprises means for displaying three luminous markers, a first marker (a) which is fixed and whose position indicates a reference angle of incidence α 0  for a given phase of flight, a marker (b) positioned to indicate the actual angle of incidence α, and means to select a slope angle γa for the said phase of flight and to actuate positioning means 6, Fig. 10, to position a third marker (c). The markers may be presented in headup display. The angle γa is selected by means of a rotary potentiometer 2 to produce a signal V f  whose sign is determined by an inverter switch 1. During cruise flight, with γa set to zero and α=αo the three markers are aligned, Fig. 5a (not shown). For landing a glide slope angle is selected by means of the potentiometer 2 and the marker (c) is displaced, Fig. 5b (not shown); this marker eventually becomes aligned with the runway threshold (E), Fig. 5c (not shown). The aircraft is then controlled to align the markers (a) and (b) with the threshold, Fig. 6a; if the approach is taking place correctly the marker (c) should become aligned with horizon marker H when positioned in accordance with - γaby using the inverter. For take-off the slope marker (c) is positioned in accordance with (# - γa) where # is the aircraft attitude and a signal Vo is provided by an inertial guidance device 9.
Patent GB-1056135-A (GB)
Title: Improvements in or relating to electrophotography
IPC: G03G5/00
Filed: 1964-02-11
Abstract: 1,056,135. Electrophotographic processes. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 11, 1964 [Feb. 11, 1963], No. 5696/64. Headings G2H and G2C. In a one-step electrophotographic process, a uniform electric field is established across an element comprising a layer 3 of electro-reactive material which is decomposable to produce a visible image, a contacting layer 5 of electrically conducting material which may either carry a photo-conductive layer 1 or may be transparent for use with a layer 3 which is also photo-conductive. The element is stable in normal light but on exposure to an actinic light pattern in the presence of the electric field produces an instantaneous permanent image in layer 3. ELECTRO-REACTIVE LAYER. The layer may be potassium azide dissolved in an ethanol solution of a polyamide resin applied to a conductive coating of stannous oxide on a Nesa glass plate. The contacting photo-conductive layer 1 may be polyvinyl carbazole or a Nesa glass plate 5 and is separable and re-usable. A voltage of 600-700 watts is applied and the light image is projected to produce localized conductive areas in layer 1 resulting in corresponding increases in the electric field which are sufficient to decompose the azide and produce a visible image. The light source is a 500 watt mercury lamp at one foot for 5 seconds. An acetate film base may be used for the layers instead of glass. Many examples of suitable electro-reactive substances are given and with each the light source wavelength is selected to give maximum reaction; filters may be used. PHOTO ELECTRO-REACTIVE LAYER. The layer 3 may be silver azide in a nylon solution mounted as above and assembled as in Fig. 2 with the photo-conductive layer 1 of selenium behind layer 3 on an aluminium electrode plate 4. Exposure is made for 1 second with a 100 watt mercury lamp, using an electrode voltage of 600-1000 volts. For a transparent photo-conductor such as anthracene, the layer system of Fig. 1 may be used. A gas liberating reactive material may be dispersed in a synthetic resin binder and coated on to resinous layer 2 in Figs. 4b and 4c (not shown). Micro-bubbles formed by decomposition of this material due to intensification of the electro field in the light struck areas by means of photo-conductor 5.
Patent GB-575588-A (GB)
Title: Improvements in diamond and like tools
IPC: B24D18/00
Filed: 1944-03-28
Abstract: 575,588. Diamond &c. tools. MOPPES, L. E. VAN, MOPPES, E. M. VAN, GODKIN, R., and SMITH, N. R. March 28, 1944, No. 5715. [Classes 60 and 124] [Also in Groups II, V and XXII] In a diamond or like tool, a diamond is partially surrounded by, or diamond particles are included in, a mass of two or more powdered metals with substantially differing melting points, which mass is heated to sinter the lower melting point metal, and simultaneously relative displacement is caused between the mass and a recessed stem or back plate to consolidate the mass and braze it to the surfaces of the recess. The higher melting point metal and the diamond or diamond particles may be coated with the lower melting point metal, or the latter may be in bar form and the heating continued to melt it so that it flows into the interstices of the higher melting point metal. The heat may be applied by gas burners, or electric resistance welding or high frequency heating may be used. The Fig. shows a diamond 3 in a hole 2 in a block 1, a moulding space 6 being formed by a removable sleeve 5 and a recess 8 in the end of a stem 7 which is pressed into the sleeve by means of a slide block 10. The interior surfaces of the recess 8 and sleeve 5 may be coated previously with flux and graphite, respectively. The application of the invention to a diamondimpregnated abrading wheel also is described and illustrated in the Specification.
Patent GB-306549-A (GB)
Title: Rolling stock of railways, tramways or road transport
IPC: B61F5/48
Filed: 1929-02-21
Abstract: 306,549. Algrain, P. Feb. 23, 1928, [Convention date]. Addition to 278,337, [Class 79 (v), Motor vehicles, Steering &c.]. Axle-trucks and bogies.-In a railway &c. vehicle according to the parent Specification in which each end Bissel " truck is rotated by a rod connected to a lever secured to a longibudinal shaft which is rotated by the lateral displacement of the central truck, mechanism is provided for the end trucks which is displaced under the action of a torque transmitted by the rod to the truck when displacing the latter but which is unaffected when the force is transmitted from the truck to the rod. The end truck 2 is pivoted at 64 and a member 15 is connected to, and is moved laterally by, its connection to the longitudinal rod 9 shown in the parent Specification. Spring-pressed pawls 62, 63 pivot on the pin 64 and engage racks 60, 61 provided with teeth and connected to the underframe of the vehicle. The pawls are provided with extensions which overlap and engage, by means of oppositely directed slots 62a, 63<a>, with a pin 15<b> in the member 15. When the member 15 is moved in the direction of the arrow X the pin 15b rocks the pawl 62 clear of the rack 60 and the end 62<b> abuts a side of the socket 66 in the frame of the bogie so that the bogie is rotated. The pawl 63 is ineffective and slips over the, teeth of its rack as the clearance in the member 15 allows the slot 63<a> in the stem of the pawl to work freely along the pin 15<b>. When the member is moved in the opposite direction the pawl 62 works freely and the pawl 63 is held out of engagement with its rack. When a shock is transmitted to the bogie in the direction of the arrow y the pawl 62 engages more firmly with the teeth of the rack 60, and, owing to the position of the pivot 64, little or no thrust is transmitted to the member 15 through the pin 15<b>. When the bogie moves in the opposite direction the pawl 63 prevents the shock from being transmitted to the member 15.
Patent GB-230111-A (GB)
IPC: C22B26/22
Filed: 1925-03-03
Abstract: 230,111. Anschutz & Co. March 3, 1924, [Convention date]. Order appatatus. - In signalling apparatus of the type wherein the position of a polyphase wound rotor in the alternating field of the transmitter determines the position of a receiver rotor, the rotor of the receiver is brought into its signalling position by an auxiliary electric motor. As shown in Fig. 2, the field produced by the currents flowing in the winding 11, 12, 13 of the receiver rotor induce in the winding of the stator 14, 15 currents which flow in the winding 17 of a two-phase induction motor 18, the other winding 19 of which is supplied from the source 1 of alternating current which supplies the transmitter stator. When the positions of the transmitter and receiver rotors are out of agreement, the currents in the winding 17, 19 of the motor are phase displaced and a rotating field is produced to cause the motor to rotate until the currents are in phase. Under these conditions, the receiver rotor stops in a position which coincides with that of the transmitter rotor. The motor 18 is mechanically coupled to the rotor 16 through speed reducing mechanism and may, in addition to effecting the operation of the receiver-rotor 16, actuate other apparatus such as the starting or regulating resistances of electric motors. In a modification, a transmitter 4, Fig. 4, actuates the motor 18, the second winding of which is not shown, and thereby 'adjusts the receiver rotor 16 and' also operates a second transmitter 23. This transmitter in turn actuates a motor 25 and' effects the displacement of a receiver 24. The apparatus may be used for signalling the positions of a water gauge, compass or ship's rudder. The Specification, as open to inspection under Sect. 91 (3) (a) describes an arrangement wherein the currents induced in the stator of the receiver are led to the input circuit of one or more thermionic valves. The output circuit supplies the phase 17 of the motor 18 either directly or through a transformer. This subject-matter does not appear in the Specification as accepted.
Patent GB-1179685-A (GB)
Title: Bistable Logic Circuit
Inventor: KARDASH JOHN JEROME
IPC: H03K3/289
Filed: 1967-02-07
Abstract: 1,179,685. Bi-stable circuits. SYLVANIA ELECTRIC PRODUCTS Inc. 7 Feb., 1967 [8 Feb., 1966], No. 5869/67. Heading H3T. A bi-stable circuit of the type comprising two elements cross-coupled so as to conduct alternatively, is triggered by capacitors, one associated with each element, which may be charged during a clock pulse if the circuit is not already in the state to which it is to be triggered, the charge being used at the end of the pulse to set the circuit and the capacitor being discharged in response to the triggering. The Figure shows a JK-type circuit comprising a bi-stable unit 10, 11, a triggering circuit 21 and a control and steering unit 20. The basic bi-stable circuit comprises transistors Q4, Q9 crosscoupled through pairs of transistors Q7, Q8 and Q6, Q5. If Q4 is conducting an input signal to transistor Q5 via a set terminal or control line 12 diverts its base current to the emitter, the base current of Q4 is thus removed and the collector current of this transistor is reduced. By regenerative action Q4 becomes non conducting and Q9 conducting. The output of the circuit is obtained through output amplifiers Q1-Q3 and Q10-Q12. Triggering is effected by applying a clock pulse from terminal 23 to the emitters of Q14 and Q15 to maintain them non conducting and concurrently charging one of capacitors C1 and C2. The end of the clock pulse lowers the voltage at the emitters of Q14 and Q15 so that the charge on C1 or C2 causes the collector of Q14 or Q15 to become conductive and so divert the base current of Q5 or Q8 from its collector to its emitter. This, as explained above, causes the associated transistor Q4 or Q9 to become non-conducting and so changes the state of the circuit. The output voltage of the non conducting transistor raises the potential at the emitter of Q3 or Q10 so making Q13 or Q16 conducting so removing any remaining discharge in the capacitor, the circuit producing sufficient delay to prevent a capacitor being discharged before triggering is completed. The control and steering circuits comprises inputs J and K duplicated at L and M. When all the inputs of one of the input transistors e.g. Q25 are " high " the base current of Q25 is diverted to the collector and when the clock pulse raises the emitter potential of Q21 this collector current flows to the collector of Q14 making Q17 conduct and charge capacitor C1. Similar charging can be effected by raising the emitters of Q26 and switching in the opposite direction is effected by raising the emitters of Q27 or Q28. One of the emitters of these transistors is fed from the output of the opposite side of the bi-stable circuit so that the triggering capacitors C1 and C2 are not charged if the bistable circuit is already in that state to which the capacitor can change it.
Patent GB-1124704-A (GB)
Title: Furnace charge preheating apparatus
Inventor: RICHARDS EDWIN ROBINSON
IPC: C21C5/56
Filed: 1967-02-07
Abstract: 1,124,704. Preheaters for scrap metal. KOPPERS CO. Inc. 7 Feb., 1967, No. 5881/67. Heading F4B. A preheater 11 for scrap metal, alloying elements, fluxes &c. to be charged into a steel making furnace comprises a frusto-conical shell 21 lined with refractory layers 23, 25 and formed with a bustle pipe 69 and tuyeres 81 for the supply of hot gases, a removable lid 33 with a ring 37 engaging a sand seal 29, segmental hinged leaves 61 forming a lower door, and a cylindrical skirt 53 dipping into a water trough 91. The skirt has serrations 55 to facilitate passage of water continuously supplied to trough 91, the water taking up different levels A and B inside and outside the skirt due to the pressure of the hot gases. The leaves have stiffening plates 63 secured thereto with openings 67 receiving a quickly releasable chain 65 holding said leaves closed. The leaves also dip into the water trough, which may be replaced by a sand trough, Fig. 4 (not shown). The preheaters are operated in pairs with a common chimney, each preheater having its own combustion chamber and associated fan, Fig. 1 (not shown).