baber/WOPTO huggingface dataset:
Patent GB-492208-A (GB)
Title: Improvements relating to radial arm drilling machines
IPC: B23Q1/28
Filed: 1937-06-09
Abstract: 492,208. Drilling-machines. ARCHDALE & CO., Ltd., J., and JEWSBURY, J. June 9, 1937, No. 15966. [Class 83 (iii)] In a radial arm drilling-machine means for simultaneously locking the arm a to the column g and the saddle l to the arm comprises a hand operated rotatable shaft b carried on the arm and adapted to operate locking means e for securing the arm, a rotatable shaft o on the saddle adapted to actuate locking means m for securing the saddle, a lever t on the saddle shaft loaded by a spring or weight for moving the shaft into locking position and means associated with the shaft on the arm for moving the saddle locking means out of action. The shaft b is rotated by a hand lever mounted on a sleeve k slidably keyed to the shaft and operates through a screwed portion of the arm to press a friction pad e on to the column g or sleeve i. The shaft o carries an eccentric, or like portion n adapted to press a friction pad m on to the arm a and is moved to locking position by a spring or, as shown, by a weighted cable 2 passing round a pulley x on the lever t. The other end of the shaft o carries a lever y adapted to be engaged by a cam z on the sleeve k to move the shaft so as to release the saddle when the arm is released.
Patent GB-273285-A (GB)
Title: An improved process and apparatus for the moistening of yarn and other textiles
IPC: B65H71/00
Filed: 1927-06-16
Abstract: 273,285. Bruhl & Co., C. June 24, 1926, [Convention date]. Fixed-chamber apparatus.-Yarns and other textile materials are moistened with measured quantities of water which are taken from vessels free from pressure and sprayed by compressed air. In the construction shown in Fig. 1, two measuring cylinders a<1>, a<2> are, on rotation of a four-way cock i, alternately filled by a tube o from a constant level reservoir l, and emptied by a pipe m to a nozzle s supplied with compressed air by a tube n. The quantities of water delivered are adjustable by raising the cylinders a<1>, a<2> by a screw g over a scale f. In the construction shown in Fig. 2, a single measuring cylinder a is, on rotation of a threeway cock i, alternately filled from a reservoir l or supply pipe, and emptied by the pipe m to the nozzle. The quantity delivered is adjusted by adjusting a displacer t in the cylinder a by a screw g.
Patent GB-332679-A (GB)
Title: Improvements in or relating to sound reproduction by optical means
IPC: G11B7/00
Filed: 1929-05-24
Abstract: 332,679. K³chenmeister, H. J. May 24,1929. Optical apparatus, - In means for the reproduction of sounds through photoelectric devices, phonograms from different sources recorded separately act on different parts of a single photoelectric device from which they are reproduced conjointly. As shown, rays of light from sources 5, 6 pass through sound records 1., 2 on a film a and act on parts 7, 8 of a photoelectric cell b, such as a selenium cell. The phonograms 1, 2 may be arranged side by side so that the two occupy onlv the full width of a single photophonogram of the usual kind, each phonogram being about 1 mm. in width. Specification 294,108 is referred to.
Patent GB-111840-A (GB)
Title: An Improved Process for Regenerating Catalysers containing Nickel and its Compounds which have been Employed for the Hydrogenation of Fatty Bodies or other Organic Products.
IPC: C11C3/12
Filed: 1917-11-05
Abstract: 111,840. Soc. Industrielle de Produits Chimiques. Dec. 2, 1916, [Convention date]. Catalytic agents, treatment of.-Nickel catalysts which have been used in hydrogenation of fats &c. are regenerated by wholly or partly removing adherent organic matter, for instance, by solution and then heating the residue while stirring with access of air. The product may be washed with water and again heated to a. red heat when it is ready for use as oxide; or the oxide may be reduced to suboxide by heating to about 300‹ C. with about its own weight of oil in a current of hydrogen. A catalyst consisting of metallic nickel may be obtained by reducing at a low temperature the nickel oxide catalyst described above or heating the original spent catalyst wholly or partly freed from organic matter, without access of air or in presence of a reducing agent.
Patent GB-675574-A (GB)
Title: Distribution of high frequency currents
IPC: H03H7/48
Filed: 1949-06-17
Abstract: 675,574. Impedance networks. MURPHY RADIO, Ltd., and HAWKINS, G. F. Aug. 23, 1950 [June 17, 1949], No. 16208/49. Class 40 (viii). A distribution system for radio frequency currents comprises a main cable 2 with tappings having roughly the same characteristic impedance as the main cable, a concentrated inductance and capacity being provided at each tapping point and having values such that their quotient is approximately equal to the square of the characteristic impedance of cable 2, one of the impedances being included in the tapping and the other in the main cable circuit next after the tapping. If the source provides an output in which the upper side bands have been raised and the lower have been depressed, it is advantageous that, in the tappings 3 and 4 near the source the inductance 7 is included in the tapping and the capacity 8 in the main cable, whereas in the remote tappings 5 the capacity 9 is included in the tapping and the inductance 10 in the main cable. For a tapping 3 very near the source the capacity in the main cable may be omitted. The capacities in the main cable may be shunted by chokes 11 of high inductance and tappings including inductance may be fed through condensers 12 of low impedance. In order not to affect the frequency response of the main it may be desirable to feed alternate tappings through series capacity and the others through series inductance.
Patent GB-406535-A (GB)
Title: Improvements in signal chimes
IPC: G10K1/066
Filed: 1933-06-06
Abstract: 406,535. Rod vibrators; acoustic resonators. KARMAC, Inc., 3684, Traver Road, Shaker Heights, Cleveland, Ohio, U.S.A. June 6, 1933, No. 16290. Convention date, June 6, 1932. [Class 13.] An electrically-operated chime comprises a chime bar 10 and a tubular resonator 11 closed at its ends and having an opening 12 disposed in front of the bar and between the points of support 13, 14 which comprise posts 15 connecting the resonator with an escutcheon plate 41. The posts 15 pass through apertures in the chime bar preferably arranged to be one quarter of its length from each end, and are covered with rubber sleeves 31 the upper one of which supports the bar, on one side of which are arranged rubber buffers 19 and on the other side felt pads 32. The operating mechanism consists of a C-shaped pole-piece 35 attached to the escutcheon 41 by a sleeve 36 swaged over at 37 which acts as a guideway for the plunger 18 and a former for the field coil 17. The plunger has a padded head 40 and a converging helical spring 22 normally holds it withdrawn from the coil against a felt abutment 42. When the coil is energized, the plunger strikes the bar 10, turning the spring 22 inside out and thus providing a quickly acting restoring force. A plurality of chimes may be arranged to be struck simultaneously or in succession.
Patent GB-795247-A (GB)
Title: Improvements in chucks
IPC: B23B31/173
Filed: 1955-06-08
Abstract: 795,247. Chucks. CONNOR, J. E. May 28, 1956 [June 8, 1955; June 18, 1955], Nos. 16411/55 and 17665/55. Class 83 (3). A chuck comprises jaws 2 slidable in radialslots in the chuck-body 1 by a sliding cone 3 operated by an axially-expanding nut-andsleeve arrangement 9, 6 located between a thrust-bearing 10, positioned against an abutment 11 on the body 1, and a bearing 12 positioned against the cone 3. The bearings 10, 12 are moved apart to close the jaws, against the pressure of return-springs 5, by rotating the nut 9 on the screw-threaded sleeve 6 through a pinion 14 meshing with gear-teeth 13 on the nut and operated by a shaft 15 mounted on the sleeve 6. The sleeve is prevented from rotating by a pin 7, Fig. 2 (not shown), which engages the machine-frame, as by a block engaging a slot in the frame. The cone 3 and hence the jaws 2, may be adjusted in relation to the operating- mechanism by a screw-threaded sleeve 24 and a conical locking-ring 27 on the cone 3. Plates 1a on the front of the chuck and engaging grooves in the jaws, retain the jaws in their slots. The chuck may be attached to the face-plate 18 by screws 19, or to a spindle-nose 20 by a socket 21 retained in the chuck by a screw 23. The chuck may be arranged to expand the jaws into gripping-engagement with the work. Anti-splash &c. guards. A cylindrical guard 22 may be mounted on the non-rotatable sleeve 6. The second Provisional Specification describes also the use of gear-operated screwthreaded pins to move the cone.
Patent GB-1363235-A (GB)
Title: Methods of mass spectrometry and mass spectrometers
IPC: H01J49/32
Filed: 1971-05-21
Abstract: 1363235 Mass spectrometers ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 May 1972 [21 May 1971] 16415/71 Addition to 1161432 Heading H1D A mass spectrometer comprises means 30 to create a variable magnetic field, means 10 and 20 to pass at least two ion beams through said field for deflection thereby substantially in a common plane, and means 15, 25 for collecting from each of the deflected ion beams, ions of substantially only a single mass to charge ratio, which ratio may be the same or different for each of the beams and dependent at least in part on the instantaneous flux density of the magnetic field. The ion beams may be formed with different energies.  Ion beams 11 and 21 produced from a sample to be analysed and from a reference substance by respective sources 10 and 20 are directed through a common magnetic analyser 30, ion beam 11 previously passing through an electrostatic analyser 12. On emergence from analyser 30 beam 11 passes through a collector slit 13, retarding slit 14, electron multiplier 15 and preamplifier 16 to recording apparatus. Beam 21 passes through an electrostatic analyser 23, collector slit 24, electron multiplier 25 and preamplifier 26. Retarding slit 14 rejects ions from source 20 while analyser 23 rejects ions from source 10. Retarding slit 14 may be replaced by a further electrostatic analyser or by an energy discriminating collector. The beams 11 and 21 may intersect as shown or may follow parallel paths, in which case they may be separated by an ion-impermeable barrier and energy filters are no longer necessary. Beam 11 may be collected at maximum resolution while beam 21 is collected at a lower resolution.  In an alternative arrangement (Fig. 3, not shown) beam 21 is deflected by two electrostatic analysers to enable the source 20 and multiplier 25 to be arranged in a common mounting block. In a further alternative embodiment (Fig. 4, not shown) the beams 11 and 21 enter the magnetic analyser 30 on a common path and are collected by a single energy discriminating collector which is switched at a higher rate than the scanning rate of the analyser 30 between a level at which it collects both beams and a level at which it collects only one beam. A synchronous switch and subtractor or a computer are then employed to obtain the two spectra.
Patent GB-318571-A (GB)
Title: Improvements in sound boxes for gramophones
IPC: H04R7/00
Filed: 1928-06-06
Abstract: 318,571. Stone, H. F., and Jones, F. June 6, 1928. Multiple-diaphragm sound-boxes; sound-box casings; tool arm mountings.-A sound-box unit for gramophones &c. comprises a number of diaphragms a<1>, b<1>, each of which is adapted for the reception or reproduction of a different quality of sound and' co-operates with a separate stylus and with a separate tone-arm connection h, h<1> for enabling each diaphragm to effect the reproduction of the desired quality of sound independently of the other or others. The diaphragms a<1>, b<1> are each clamped between rubber &c. rings c, c<1> in sound-boxes a, b, which are connected together with a separating ring f. The ring f is provided with radial and axial perforations f<1>, f<2>, and may be formed integral with one sound-box and attached to the other. The diaphragm a<1> may be of aluminium, being adapted more particularly for dealing with sounds produced by the human voice or wind instruments, and the diaphragm b<1> may be of mica which is suitable for the reproduction or reception of sounds produced by heavy stringed instruments. The stylus-bar g, g<1> for each diaphragm is pivotally mounted and provided with a needle-holder g<2>, g<3>. The bar g<1> may be counterbalanced by a small weight or spring, a preferred mounting consisting of the provision of a bearing-plate o, Fig. 4, on the stylus-bar and pressing such plate by means of springs q on screws p against ball-bearings n mounted on a plate m on the bottom of the sound-box b. The mounting of the, bar g consists of screws k, Fig. 3, passing through lugs j at the base of the sound-box and entering recesses in the ends of a bar l on the stylus-bar. The frames of the sound-boxes may be recessed.
Patent GB-1374071-A (GB)
Title: Process for the combustion of claus-process residual gas
IPC: B01D53/50
Filed: 1973-04-05
Abstract: 1374071 Consuming noxious gases HEINRICH KOPPERS GmbH 5 April 1973 [18 April 1972] 16455/73 Heading F4B Claus-process residual gases containing hydrogen sulphide and sulphur are burnt, together with ammonia-bearing vapours, in an ammonia-burning oven, in the presence of fuel gases and at a temperature between 1000-1150 C. The combustion temperature is maintained by regulating the supply of air and/or fuel gas, the air being adjusted to give an excess of oxygen. The heat generated may be used for raising steam for an ammonia stripper.
Patent GB-642571-A (GB)
Title: Improvements in or relating to electrical arrangements for generating hot water and steam
IPC: F24H1/10
Filed: 1948-06-21
Abstract: 642,571. Heating water by electric resistances. KNOBLAUCH, E. June 21, 1948, No. 16677. [Class 39(iii)] A hot water or steam generator comprises a closed air chamber 1 containing upper and lower drums of water 14, 15 interconnected by tubes 18, heat being generated by one or more electric heating elements 13 suspended in the chamber and pipe means being provided to conduct the heated fluid away from and back to the said drums. One end wall of the air chamber is constructed of removable concentric annular shaped sections and the whole chamber is lagged with heat insulating material 5.
Patent GB-1346881-A (GB)
Title: Polyepoxyether and bitumen compositions
IPC: C08L63/00
Filed: 1971-05-24
Abstract: 1346881 Polyepoxyether and bitumen compositions PROGIL 24 May 1971 [5 June 1970] 16727/71 Headings C3B and C3N A composition comprises: (I) a polyepoxyether obtained by reacting (n + 1) moles of a diepoxide with n moles of a polyol (n being an integer), (II) a hardener for I, and (III) a bitumen. III may be present at >50% by wt. of the composition but preferably comprises 10- 50% by wt. I may be a diglycidyl ether of a dihydric phenol. II may be an amine, a polyamide or a hydrolysed imine. III may be a road tar having a penetration index of 20-300. Uses.-Protective coatings, roofing, jointing and road surfacing.
Patent GB-563529-A (GB)
Title: Improvements in or relating to electrical inverter systems
IPC: H02M7/62
Filed: 1942-11-26
Abstract: 563,529. Converting; transformers. STEVENS, A. H. (Electronic Laboratories, Inc.). Nov. 26, 1942, No. 16789. [Class 38 (ii)] In an inverter system in which an electromagnetic interrupter 17 converts D.C. from a source 23 into pulsating current in an inductance 16 which supplies an output circuit 26 by means, for example, of a transformer 11, the change in output voltage due to change in voltage of the source 23 is minimized by making the inductance 16 " saturable " and connecting it in series with a linear inductance which has two equal windings 31, 32 through which the pulsating current alternately passes.
Patent GB-638055-A (GB)
Title: An improved screwdriver
IPC: B25B15/04
Filed: 1948-06-22
Abstract: 638,055. Screwdrivers. HITCHING, T. G. BROOKE-. June 22, 1948, No. 16791. [Classes 61 (i) and 61 (iii)] A screwdriver handle normally freely rotatable upon the screwdriver shaft is slidable upon the shaft against a spring to a position in which it is in clutch-like engagement with a finger-piece rigidly secured to the shaft. The handle 1 is bored to freely receive both the shaft 5 and an enlarged end portion thereof 8, which is urged against a shoulder 12 within the bore by a spring 11 retained in the bore by a screwed plug 10. The forward face of the handle 1 is provided with a plurality of projections 13 which are adapted, upon compression of the spring 11 by an axial force applied to the handle to engage within corresponding recesses 19 formed in the end of the finger-piece 14, which is rigidly moulded upon the shaft, whereby the handle is brought into driving relationship with the shaft. The handle 1, screwed plug 10 and finger-piece 14 may be of moulded synthetic resinous material. According to the Provisional Specification the finger-piece may be secured by a rivet passing through the finger-piece and shaft.
Patent GB-1476539-A (GB)
Title: Recovery of silver and terephthalic acid components from light sensitive film material
IPC: G03C11/00
Filed: 1975-04-23
Abstract: 1476539 Terephthalic acid BARBERCOLMAN CO 23 April 1975 [1 May 1974] 16848/75 Heading C2C [Also in Division C7] Terephthalic acid is recovered from photographic material having a base of a polyester formed of terephthalic acid, or a derivative thereof, by subjecting the material to wet oxidation at elevated temperature and pressure in an aqueous alkaline solution wherein an O 2 - containing gas (e.g. O 2 , air) is blown into the agitated solution. The solution is filtered to remove the Ag-bearing constituent of the material and the filtrate is neutralized with HNO 3  to precipitate the terephthalic acid component which was then filtered off and treated with ethyl alcohol to remove entrained Ag, the purified terephthalic acid separating as a solid. The alkali is an alkali metal hydroxide or carbonate, preferably NaOH, Na 2 CO 3 , and the pH of the solution is greater than 9. The temperature of wet oxidation is 325-425 F. and the reaction is carried out in an autoclave.
Patent GB-766182-A (GB)
Title: "improvements relating to torsion spring operated closing devices for gates and doors"
IPC: E05F1/12
Filed: 1953-06-19
Abstract: 766,182 Door springs. LEWIS SPRING CO., Ltd. June 21, 1954 [June 19, 1953], No. 16958/53. Class 65 (1). A torsion spring for fixing to the faces of a door or the like and its supporting post comprises a length of spring wire 10 with its ends bent laterally in opposite directions and again bent to form return ends, secured by plates 11 formed with recesses 111 to receive the bent ends of the spring..
Patent GB-534969-A (GB)
Title: Improvements in or relating to registering or recording devices for weighing apparatus
IPC: G01G23/18
Filed: 1939-06-10
Abstract: 534,969. Weighing apparatus. BERKEL AUTO SCALE CO., Ltd. (Maatschappij var Berkel's Patent N.V.). June 10, 1939, Nos. 170 and 18634. [Class 143] In a weighing-apparatus having a recording or registering mechanism employing for example, feelers 7, 8, 9, Fig. 2, investigating weight-set elements 10, 11, 12 mounted to rotate co-axially with a locking disc 3, a locking detent 4 is incorporated in the mechanism in such a manner as to prevent the locking of the disc 3 and the advance of the feelers into contact with the weight-set elements unless the weighing- apparatus is substantially at rest. The locking detent 4 has a projecting spindle 15 which normally rests on the apex of an inverted V- shaped slot 15a formed in side-plates 14. When the side plates are moved upwards during a recording operation, the locking detent engages the locking disc 3. and if the locking disc is substantially at rest, the detent remains in the vertical position and, as described below maintains the lock during the investigating movement of the feelers. If the disc 3 is moving, the locking detent is pushed aside off the apex of the V-slot, and the lower cranked end 16 (which passes through T-shaped slots 18 in the feelers), swings beneath a fixed abutment 17 and prevents the advance of the feelers into investigating contact with the weight-set elements 10, 11, 12. In the vertical locking position of the detent referred to above, the rise of the feelers is permitted by loose-motion slots 15c in the feelers, and the vertical limb of the T-slot 18 embraces the cranked end 16 and holds the detent in locking position. In a modification, Fig. 5, the locking detent 4 is lowered by its supporting plates 14 on the locking disc 3. If the disc is substantially at rest, the head 4a of the detent enters a recess 4b and maintains the disc in locked position during the subsequent investigating movement of the feelers; if the locking disc is moving, the detent is rocked about its spindle 15 and by avoiding the recess 4b fails to lock the disc and the investigating movement of the feelers is prevented by interconnecting mechanism. In a further modification wherein a frictional lock is applied to the disc 3 an element 20, Fig. 6, coupled to the feeler mechanism is moved towards the disc and, if the disc is moving sufficiently, a control member 22 loosely pivoted on the element 20 is rocked by the moving disc, and the upper end of the pivoted member in co-operation with an aperture 25 and fixed abutments 26 prevents the element 20 from reaching the locking position. If the disc 3 is substantially at rest, the control member 22 remains in a vertical position during the descent of the element 20 and end 24 of the control member enters a vertical slot 25a to permit the element 20 to descend to the locking position.
Patent GB-1068449-A (GB)
Title: A method for preparing zinc oxide pellets
IPC: C22B19/34
Filed: 1966-04-19
Abstract: ZnO and SO2 are obtained by passing 1/2 -inch pellets of a ZnS ore concentrate down through a furnace having an upper zone at 1150 DEG C. where impurities, e.g. Cd and Pb sulphides, are volatilized, and a lower zone at 900-1025 DEG  C. to which excess O2 is supplied, and where the ZnS is roasted to ZnO, the SO2-containing roast gases passing to the upper zone to form the required non-oxidizing atmosphere there.  The ZnO pellets are used as feed in an electrothermic reduction furnace.  The ore concentrate is initially ground, e.g. in a ball-mill, optionally with recycled Zn materials, e.g. reduction furnace fines (screen analysis is given); binding agents, e.g. bentonite, and Zn sulphate liquor, may then be added, and the mixture is pelletized in a rotating drum and then dried with hot air.  The pellets may have a residence time of 13 hours in the furnace, and moisture may be present in the first zone. The hot pellets may be cooled by heat-exchange with the feed air, and hardened at 1225 DEG  C. The hot gases may be passed through waste heat boilers; Pb and Cd values are recovered by electrostatic precipitation and wet-scrubbing, and SO2 is converted to H2SO4.
Patent GB-631408-A (GB)
Title: Improvements in or relating to the suspension of endless track frames on tractors and like vehicles
IPC: B62D55/084
Filed: 1947-06-30
Abstract: 631,408. Endless tracked vehicles. FOWLER & CO. (LEEDS), Ltd., J., and HOWARD, A. C. June 30, 1947, No. 17131. [Class 79 (i)] The forward ends of the endless track frames are suspended from a tractor or like vehicle by means of a cross shaft cranked forward at one end and rearward at the other. As shown in Fig. 1 the rear ends of the frames 8 are pivoted to a dead or live axle 15. At the forward end of the tractor, Fig. 3, an axle bracket I is either rigidly or resiliently secured and provides bearings 4 for the cross shaft 5 having the forwardly and rearwardly cranked ends 6, Fig. 1. The cranked ends 6 afford journals for short connecting rods or links 7 connected to the track frames 8 at bearing blocks 13 by pins 10 which may have resilient mountings. Inclined adjustable stops 11 are secured to the frames 8 to engage abutments 12 on the links 7. The stops 11 may be faced with rubber or like resilient material 14.