baber/WOPTO huggingface dataset:
Patent GB-415355-A (GB)
Title: Improvements in and relating to the contact construction of electric lamps and thermionic valves
IPC: H01K1/46
Filed: 1934-04-20
Abstract: 415,355. Thermionic valve caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 20, 1934, No. 11972. Convention date, April 21, 1933. [Class 39 (i).] In a thermionic valve the contact terminals are formed by the leads 14, 15, which lie in slits 21 in an insulating disc 19 glued or cemented to the end of the bulb ; the ends of the leads are bent over the ends of the projecting wings 22, 23 of the disc. A central hole allows the evacuating tube 18 to project beyond the end of the bulb, this tube forming centring means for the holder 25, Fig. 4 ; the receiving clips 27 on this holder are formed of spring metal with inclined parts 30, 29, to (i) guide the contacts into the clips and (ii) to form stops when the contacts are in place. Any number of contact wings may be formed on each disc and the ends may receive binding clamps 34, Fig. 5. The holder has a central raised part 31 against which the lamp bulb bears. When a large number of contacts are provided on each disc the holder contacts may be in the form of simple spring grips 52, Fig. 9, integral with extensions 48 for lead connection. Specification 147,293, [Class 39 (ii)], is referred to.
Patent GB-496921-A (GB)
Title: Roll film cameras
IPC: G03B1/48
Filed: 1938-04-21
Abstract: 496,921. Roll-film cameras. VOIGTLANDER & SOHN AKT.-GES. April 21, 1938, No. 11975. Convention date, April 21, 1937. [Class 98 (i)] A camera casing 1 is provided with recesses 12, 22 for the film delivering and winding spools respectively. The delivering spool is mounted on a U-shaped bracket 5 fixed to the cover 3 and is retained by pins 8 and star-shaped springs 10, the latter exerting a braking action on the spool. Guide rollers 15, 16 for the film are rotatably mounted on a leaf spring 17 secured at 19 to the casing, so that when the cover 3 is closed, a plate 21 forces the guide rollers inwardly so that the film is held flat. Lugs 24, 25 are provided to set the plate 21 correctly in the focal plane of the lens. Cam surfaces 13 are provided on the casing to lock the bracket 5 and spool in position when the cover is closed.
Patent GB-1358592-A (GB)
Title: Supervisory arrangement
IPC: G05B23/02
Filed: 1971-04-28
Abstract: 1358592 Calculating mean values SIEMENS AG 28 April 1971 [29 April 1970] 12002/71 Heading G4G [Also in Division G1] A supervisory arrangement comprises a mean value former for a member of analogue inputs, means for comparising a chosen member of the inputs such that, upon the occurrence of a predetermined inconsistency in the inputs, one or more of the input channels are switched out and the remainder weighted in order to obtain an output from the mean value former which is independent of the inconsistency in the input signals. The circuit shown provides 2 out of 3 selection in case of a disturbed signal. When the three signals S 1 , S 2 , S 3  are undisturbed, they are coupled through the contacts a, b, c of relays A, B, C to a mean value former comprising an amplifier 17 with input resistances 3R and feedback resistance R. The signals are continuously compared in pairs by three-state switches 14, 15, 16 controlling respective relays A, B, C. Should one of the signals differ from the others by an excessive amount, the corresponding relay is operated and the disturbed channel is disconnected. At the same time, one of the remaining channels is connected to the input resistance 3R corresponding to the disturbed channel whereby the output of the mean value former remains unaffected. Two further series of contacts a, b, c of the relays A, B, C are respectively arranged to operate one of the warning devices L 1 , L 2 , L 3  in order to identify the disturbed channel and to operate a common warning device L. In a modification (Fig. 2, not shown), the feedback resistance R is replaced by two series resistances R and 0À5R, the latter being bridged by seriesconnected normally-closed contacts a, b, c of the relays A, B, C such that, in the undisturbed case, the resistance 0À5R is short-circuited and the normal output of the mean value former obtained. Disturbance of an input channel causes one of the contacts a, b, c to open, whereby 0À5R is connected in series with R and the output of the mean value former multiplied by the factor ¢. The specification discusses the case of a 3 out of 4 selection system (for which six relay switches are necessary) and the general case of u inputs is briefly discussed.
Patent GB-1147588-A (GB)
Title: A magnetic storage device
IPC: G11C11/14
Filed: 1968-03-12
Abstract: 1,147,588. Magnetic storage devices. NATIONAL CASH REGISTER CO. 12 March, 1968 [3 April, 1967], No. 12011/68. Heading H3B. [Also in Division H1] A storage device consists of a strip of thin magnetic film having a stable rippled magnetization pattern (Fig. 1a in which the width to thickness ratio of the strip is not greater than 1600 to 1. The pattern is formed by placing an anisotropic thin magnetic film strip, having its hard direction along the length of the film, in a magnetic field directed along the hard axis. Initially the field is above the critical switching field and it is then reduced below this threshold. If the film has a high anisotropy constant or is very thin a rippled pattern is formed. If notches or protrusions are provided alternately on opposite edges of the strip a constant periodicity of the ripple can be maintained. An alternative arrangement consists of a sheet of anisotropic film having a relatively low coercivity, on which are deposited strips of higher coercivity material. These strips prevent switching of the sheet in the regions which they cover, the regions between the strips being provided with the rippled pattern and having the above-mentioned width to thickness ratio. Fig. 4 shows an arrangement in which the flux path is closed, strip 14 being deposited on a substrate 16 which lies on support 19. Conductors 18, 20 are for coincident-current selection. This embodiment may also be modified by forming substrate 16 of low coercivity material and strips 14 of higher coercivity material, to define storage regions between adjacent strips.
Patent GB-969633-A (GB)
Title: Photoflash lamp
IPC: F21K5/08
Filed: 1961-04-04
Abstract: 969,633. Photo-flash lamps. SYLVANIA ELECTRIC PRODUCTS Inc. April 4, 1961 [April 27, 1960], No. 12027/61. Heading G2L. A photo-flash lamp has within its sealed envelope a quantity of filamentary zirconium and a gas filling above atmospheric pressure comprising a mixture of oxygen with between 1% and about 10% by volume of nitrogen. The light output against time diagram of Fig. 2 was obtained using about 30 mg of shredded zirconium foil having a crosssectional area between 0. 5 x 10<SP>-6</SP> sq. in. and 2. 0 x 10<SP>-6</SP>.sq. in. with a gas filling of about 95% oxygen and 5% nitrogen at a pressure of about six atmospheres, the foil and gas being present in substantially stoichiometric proportions. Variations in amount and composition of the usual electrically fired primer are stated to have little effect on the time taken to reach maximum light output.
Patent GB-254840-A (GB)
Title: Improvements relating to the supply of current to wireless apparatus
IPC: H02M1/14
Filed: 1925-05-09
Abstract: 254,840. Doughty, E. B. May 9, 1925. Converting pulsating currents into steady continuous currents. - In means for supplying steady direct current to the valve circuits of wireless apparatus from direct current mains in which a three-wire system is employed, the filter comprises series chokes a<1>, a<2>, b<1>, b<2>, shunt condensers c\ d<1>, and a number of bypass circuits to earth through condensers e<1>, g<1>, h<1>. A potentiometer j, k is provided across the output side of the filter, the anode circuits of the valves being connected to variable tappings m, l on the part j, the filament circuits being connected between the parts j, k and regulated by a resistance n, whilst grid bias is supplied by variable tappings o, p on the part k. Changeover switches r, u are provided respectively at opposite sides of the filter arrangements in order that the condenser e<1> may be brought on to the neutral side of the three-wire system and the part j of the potentiometer which supplies the anode circuits shall be on the positive side irrespective of which side of the three wire system the device is employed. According to the Provisional Specification radio frequency chokes, fuses, and in each circuit, a lamp may be provided.
Patent GB-261276-A (GB)
Title: Improvements in road vehicles propelled by manually actuated mechanism
IPC: B62M1/14
Filed: 1926-05-11
Abstract: 261,276. Curry, M. Jan, 9, 1926, [Convention date]. Steering-mechanism.-In a road vehicle of the kind in which propulsion is effected by an action similar to that of rowing, the front axles are steered by pedals 3 connected to sectors 16 operating the ends of a double armed lever 18 by flexible connections, a pulley on the axis 21 of the lever being connected to sectors 19 movable with the axles.
Patent GB-552440-A (GB)
Title: Operating mechanism for windows
IPC: E05F11/38
Filed: 1941-07-28
Abstract: 552,440. Pneumatic single-stroke apparatus. TRICO PRODUCTS CORPORATION. July 28, 1941, No. 12165/42. Convention date, Sept. 17, 1940. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 28. 1942.] [Class 8 (ii)] [Also in Groups X and XXIV] Motor vehicle windows are operated by suction from the intake manifold of the engine, the suction being communicated to a cylinder divided by a piston into two compartments each of which is normally under suction and means being provided to open either compartment to atmosphere to effect an operative pressure on one side of the piston to open or close the window. The device may be provided with means for locking the window against manual operation as described in Specification 552,417. The vertically sliding window carries an extension from a bracket 4 having rollers 7 which run on a fixed track 8, and prevent tilting of the window. The window motor comprises a cylinder 9, the piston rod 10 of which is connected by a bell crank lever 13, to the lower edge of the window, a fixed guide finger 20 working in a slot 21 in the cylinder head. The piston is self locking as described in Specification 552,417, and comprises a section 22 fixed to the piston rod 10, and a floating section 23. If these sections are urged apart by a pull on the piston rod due to manual opening of the window, rollers 43 urged apart by cam surfaces 42 press against inclined faces 41, and expand shoes 39, 40 against the cylinder wall, thereby locking the piston in the cylinder. Fluid pressure, causing the piston members to approach each other, releases the locking shoes. A light spring 44 urges the piston members apart so as to hold the window in the desired position. The opposite ends of the cylinder are connected by tubes 46, 47 through controls 48, 49 to the intake manifold of the engine, the controls venting the desired end of the cylinder to atmosphere. A vent 58 is provided to avoid pressure being maintained within the shoe chamber. A check valve prevents dissipation of the vacuum in the motor cylinder should the pressure from the engine manifold more closely approach atmospheric pressure.
Patent GB-505308-A (GB)
Title: Improvements relating to kerbs
IPC: E01F9/053
Filed: 1938-04-23
Abstract: 505,308. Illuminated kerbs. ROBINSON, G. C., and STANTON, S. G. April 23, 1938, No. 12221. [Class 107] [Also in Groups XI and XVIII] A kerb block 1 has a cavity 2 containing a light source 4, one or more passages 6 leading from the cavity to an aperture or apertures 7 formed in the front sloping face 13 of the kerb, and a detachable coverplate 12 for enabling the interior of the cavity to be inspected. The front to rear width of the passage is such as to minimize the danger of the light source being damaged by any external source and, as shown, the rear end of the cavity may be closed by a sheet 10 of glass. The face 13 extends from the upper surface of the kerb to adjacent the lower edge of the aperture and the latter may be bounded by inclined surfaces 71, 7<11>. The base of the cavity may be inclined so that any water tending to collect therein gravitates to a drainage aperture 16.
Patent GB-220059-A (GB)
Title: Improvements in or relating to apparatus for the concentration of ores and the like
IPC: B03D1/16
Filed: 1923-05-07
Abstract: 220,059. Jones, F. B., Bourke, B. L., and Minerals Separation, Ltd. May 7, 1923. Flotation apparatus.-In froth-flotation apparatus of the general type, described in Specification 15546/12, the agitators are confined in agitation boxes below diaphragms having apertures over the agitators, and the inlets to and outlets from the agitation boxes which communicate with the spitzkasten are disposed below the diaphragms. In the form shown, each agitation box 1 has a diaphragm 8 formed with an air inlet 9 beneath which is mounted an agitator 7 which may be of the kind described in Specification 22743/12, a space 12 being left between the agitator and the bottom of the box. Openings 10, 11, which may be adjustable, communicate with the bottoms of a series of spitzkasten 2 staggered with relation to the boxes 1. Openings 15 are formed in the partitions between the spitzkasten to ensure uniform pulp level. In some cases the partitions between the agitation 'boxes mav be omitted; or the whole of the walls above the diaphragms 8 may be dispensed with, vertical pipes of sufficient height being in the latter case placed over the openings 9. The discharge, of pulp from the last spitzkasten may be regulated by a valve near the bottom or preferably by an adjustable pivoted pipe open at its upper end at the pulp level.
Patent GB-423164-A (GB)
Title: Improvements in and relating to the production of heat-treated coiled medium or highcarbon steel wire rods
IPC: C21D9/52
Filed: 1933-04-27
Abstract: 423,164. Rolling wire. LLOYD, H. D., The Old Vicarage, Stretton, near Warrington, Lancashire. April 27, 1933, No. 12318. [Classes 83 (ii) and 83 (iv)] [See also Group II] Coiled medium or high carbon steel rods having a sorbitic structure are produced by leading the rod from the rolls without substantial loss of heat into a quenching bath containing suitable molten salts or other non-aqueous liquid medium maintained at a temperature of 450-500‹ C., and coiling the rod therein. The heated rod m is fed from the finishing rolls n into a tube e which is curved at its end and leads into a central tube in a rotating frame e. Connected with this tube is a curved tube p also carried by the frame e which feeds the rod to and curls it round a stationary drum q immersed in a bath a containing molten salts or other medium and mounted in masonry b and heated by a burner c. The drum q is perforated at 6 so that an impeller 4 mounted on the shaft carrying the frame e circulates the quenching medium in and around the coiled rod. When the whole of the rod has been coiled on the drum q, a base plate t hinged to the tank a at u is lowered by an arm v operated by an hydraulic cylinder w and the coil released from the drum q slides down the plate t on to bars 3 and so on to a table 2 which is then raised out of the bath by suitable means.
Patent GB-400660-A (GB)
Title: Improvements in or relating to double wire operated mechanisms for actuating railway signals
IPC: B61L5/16
Filed: 1932-04-30
Abstract: 400,660. Railway signals. BAKER, E. W., Assam Bengal Railway, Chittagong, India, and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Saxby & Farmer (India), Ltd.; 17, Convent Road, Entally, Calcutta, India.) April 30, 1932, No. 12450. Convention date, Oct. 27, 1931. [Class 105.] Signals are operated in both directions positively by a double wire transmission wheel 4 which is so mechanically coupled with a slide 10 actuating the signal that excessive movement of the wheel, as on breakage of the wire, will disengage the slide from the wheel and the signal will return to danger. The coupling may consist of a pin 5 on the wheel engaging a slot 9 in the slide. The first part of the wheel movement doesnotmove the signal as the pin 5 fitted with a roller 8 has some clearance from the upper face 11 of the slot 9 by which it engages the slide 10. Abnormal movement of the wheel will cause the pin to leave the slot after 180‹ of movement whereupon the signal will return to danger under gravity. Actuation of the double wire transmission from the normal position but in the reverse direction will clear a second signal connected to the slide 10a. A locking tappet 13 prevents the other signal being moved.
Patent GB-1100672-A (GB)
Title: Process for preparing an oxime or a hydroxylamine
Inventor: RUSSELL JOSEPH LEE
IPC: C07C15/46
Filed: 1965-03-24
Abstract: Styrene is obtained by vapour phase dehydration of a -phenylethanol at 180-280 DEG  C., preferably 200-250 DEG  C., over an oxide catalyst, preferably titania.  Similarly a -methyl styrene and isobutene are obtained from cumyl alcohol and t-butyl alcohol, respectively.ALSO:Oximes and hydroxylamines are obtained from the corresponding primary amines, the amine group of which is attached to a primary or secondary saturated carbon atom, by treating the amine in the liquid phase with a combination of a dissolved metal catalyst selected from Ti, V, Cr, Se, Zr, Nb, Me, Te, Ta, W, Re and U catalysts and an organic hydroperoxide as the essential oxidizing agent.  The preferred reaction temperature is in the range of about -10 to +175 DEG  C.  Specified organic hydroperoxides are those of the formula ROOH wherein R is an aralkyl, aralkenyl, hydroxyalkyl, hydroxyaralkyl, cycloalkyl, cycloalkenyl, hydroxycycloalkyl or alkyl. Analogous hydroxy hydroperoxides may also be used.  Specified amines are those which contain 1 to 20 carbon atoms such as benzylamine, isopropylamine, cyclohexylamine, and cyclododecylamine.  The reaction is carried out under a pressure sufficient to maintain the liquid reaction phase.  The process may be carried out continuously or batchwise. Alternatively, the process may be carried out starting with the hydrocarbon from which the hydroperoxide is derived and oxidizing the hydrocarbon, e.g. with molecular oxygen, in the first step; the by-product alcohol which is formed during the reactions may be recovered or converted into other compounds or back to the initial hydrocarbon from which the hydroperoxide was obtained. Cyclohexyl hydroxylamine may be prepared and air oxidized to the oxime. Examples are given for the production of cyclohexyl hydroxylamine, cyclohexanone oxime, and n-hexylaldoxime.  Acetophenone is obtained by dehydrogenation of a -phenylethanol at 200-300 DEG  C. in the presence of a Cu catalyst.
Patent GB-1182235-A (GB)
Title: No-Lash Universal Joint.
IPC: F16D3/38
Filed: 1968-03-14
Abstract: 1,182,235. Making Hooke's joints. BENDIX CORP. 14 March, 1968 [27 March, 1967], No. 12520/68. Heading B3A. [Also in Division F2] A method of making a universal joint is characterized in that portions of a tubular member are cut away to provide a pair of spaced arms 12, 16, Fig, 7, and the member is then drilled to provide clearance for a block 22, Fig. 10. The block 22 is inserted between the arms which are deformed, e.g. by coining, around the protruding part-spherical surfaces. The arms of a similar tubular member are located over the remaining protruding part-spherical surfaces and similarly deformed. Screws 28 are fitted to the arms of each tubular member and adjusted to provide a pre-selected load which maintains lash-free contact.
Patent GB-1241768-A (GB)
Title: Control apparatus for hydrofoil craft
Inventor: SCHERTEL HANNS VON
IPC: B63B1/28
Filed: 1969-03-10
Abstract: 1,241,768. Hydrofoil craft. SUPRAMAR A.G. 10 March, 1969 [8 March, 1968], No. 12520/69. Heading B7A. In a hydrofoil assembly comprising an air control valve 13 through which a metered quantity of air is delivered at 16 to the surface of the hydrofoil 7, suction openings 5a-5e are disposed so that some are above and some below the water level when the hydrofoil moves through the water and control means responsive to suction developed by water flow past the submerged openings is coupled to the air control valve 13. In the embodiment shown the control means is cylinder 1, piston 2 and uniformly spaced openings connected to the suction openings in strut 6. A slot 10 is in the piston wall directly above the base 8 which is rigidly connected to valve 13.
Patent GB-316544-A (GB)
Title: Improvements in gas holders
IPC: F17B1/00
Filed: 1929-04-23
Abstract: 316,544. Maschinenfabrik Augsburg- Niirnberg Akt.-Ges. July 30, 1928, [Convention date]. Holders.-In a telescopic gas holder having sliding seals, each lift is constructed from plates of the same height as the lift and the edges of the plates are secured together by countersunk rivets passing through iron strips h, i which act as reinforcing members. The upper and lower closing rings f<1>, g<1> of the seals are out away at k to allow the passage of the members h. In the case of a helically guided gas holder the edges of the plates and the reinforcing members l, o are arranged in the direction of the guiding helices.
Patent GB-528099-A (GB)
Title: Improvements in and relating to electric control systems and apparatus therefor
IPC: H02P25/10
Filed: 1939-04-27
Abstract: 528,099. Electromagnetic switches ; thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. April 27, 1939, No. 12641. Convention date, April 28, 1938. [Class 38 (v)] Fig. 5 shows a split-phase motor M controlling a refrigerator, for example, and provided with a starting and a running winding, the terminals S, R of which are connected respectively to contacts 31, 32 and a winding 18 controlling those contacts. Closure of a cold control 51, responsive to the temperature of the refrigerator cooling compartment, causes a rush of current through the running winding of the stalled motor, the running-circuit resistance of which is low, so that the coil 18 is sufficiently energized to energize the starting-winding over closed contacts 31, 32. When the motor is up to speed, the current through 18 decreases and 31, 32 open and the motor operates on its running winding. A bimetal strip 39, with heating coil 45, is arranged to maintain its contacts 40, 41, closed during starting and normal running. but to open them should the motor be overloaded, or stall, or fail to start. The electromagnetic control switch and overloaddevice are embodied as units 13, 12 on either side of a wall 11 on a base 10. A magnetizable frame 14 is mounted on the wall 11 by means of rivets 22, 23 in such a way that part 24 thereof overhangs the thermal unit 12. One end of the frame 14 carries the pole face 16 and coil 18, and has one terminal of the latter connected to it at 21. The other frame-end carries a spring 26 on which is an armature 27 having a thickened and bent-over end 29, which provides a continuously-decreasing air-gap, and continuously increasing force, between it and the pole face 16 as the armature moves adjacent and transversely to the latter, whereby armatureoscillation is prevented. Spring 26 also carries a contact 31 having a stop 35 which engages a closed winding 28, on the armature 27 for preventing vibration due to the A.C. eriergization and limiting armature travel. The fixed contact 32 is mounted on a spring finger 33. A strip 39, composed of invar and steel, is secured to a U-shaped bracket 36 traversed by a screw 38 having an adjustable nut, and carries the contact 40, whereas the contact 41 is on a spring strip 42 brazed to the frame-part 24. When the strip 39 deflects due to series heating coil 45, the contacts separate and an armature 43 on the strip is attracted to a permanent magnet 44, which is preferably of an alloy of the character described in Specification 423,897, [Group II], and has its face centrally grooved to provide spaced polar faces. The travel of the strip is adjusted by a screw 49 raising or lowering the end of a resilient strip 47 carried on abutments 48.