baber/WOPTO huggingface dataset:
Patent GB-1104131-A (GB)
Title: The control of grinding mills
Inventor: HAYES ERIC FREDERICK JOHN
IPC: G05D7/06
Filed: 1963-12-17
Abstract: 1,104,131. Automatic control of grinding mills. ASHMORE, BENSON PEASE & CO. Ltd. Dec.16, 1964 [Dec.17, 1963], No.49691/63. Heading G3R. The supply or withdrawal of material to or from a rotary grinding mill is automatically controlled in dependence on the weight or torque of the mill as detected by a plurality of electrical load-cells associated with a support for the mill or the driving means therefor. In Fig. 3 a rotary grinding mill 12 for ore, cement &c., driven by an electric motor 17 and mounted on a platform 23, is supported by load-cells 24 A-D. An electrical signal representing the weight of the mill is subtracted from the combined output of the load-cells and the resulting signal, representing the contents of the mill, is amplified electronically at 28 and compared with a desired weight set on a potentiometer 31. Any difference is applied through an amplifier 32 to adjust at 26 the rate of feed of material to the mill so that the weight of material in the mill is automatically maintained at the desired value. Alternatively pneumatic withdrawal of material from the mill at 27 may be controlled instead of the feed to it. The load-cells may alternatively be associated with drum 12 supported independently of motor 17. The signals from appropriate pairs of loadcells may be subtracted from each other to give a signal representative of motor torque which is then automatically maintained constant. In this case the load-cells may be associated with motor 17 supported independently of drum 12. The signal from amplifier 28 may be differentiated, rectified and integrated to produce a control in response to short term variations which vary in magnitude with the amount of material in the mill.
Patent GB-1303100-A (GB)
IPC: H01S3/136
Filed: 1970-10-21
Abstract: 1303100 Lasers WESTERN ELECTRIC CO Inc 21 Oct 1970 [21 Oct 1969] 49927/70 Heading H1C A laser 10 is made locked by an intra-cavity phase modulator 15 supplied with a modulating signal f 0  = c/2L and a harmonic of this signal. Conventional single signal mode locking would produce a pulse train in phase with the modulating signal and a further train 180 degrees out of phase therewith, and since both trains are equally probable the output would switch from one to the other. By using two harmonically related modulating signals the two trains are locked together to give a stable output. In Fig. 1 the output from oscillator 16, at f 0 , is divided at 17 and one part is fed via an attenuator 19 and a phase shifter 20 to a combining network 18, while the other part is doubled in frequency at 21 and fed to the network 18 via attenuator 22. The combined signal is passed to an electro-optic LiNbO 3  or KDP modulator 15. If the two signals fed to network 18 are of equal amplitude, their phase may be varied by Œ5 degrees from optimum without loss of locking. Similarly at optimum phase difference the relative amplitudes may be varied by Œ10 db. The extent of locking is determined by measuring the intensity of the second harmonic of the optical output, this maximizing at optimum locking. Details of the network 18 are given, Fig. 3 (not shown), the network being resonant at both f 0  and 2f 0 .
Patent GB-1457146-A (GB)
Title: Monoazo dyestuffs
IPC: C09B29/01
Filed: 1974-11-19
Abstract: 1457146 Monoazodyestuffs BAYER AG 19 Nov 1974 [20 Nov 1973] 50023/74 Heading C4P Novel monoazo dyes having the formula (where R<SP>9</SP> is hal; R 10  is H, hal, CN or CF 3 ; R 11  is H or C 1-4  alkyl; R 12  and R 13  independently are H, C 1-4  alkyl or cyanoethyl) are prepared by diazotization and coupling. The dyes are used for colouring nitrogen containing fibre materials, particularly wool, silk and synthetic polyamides, in orange to red shades.
Patent GB-1450592-A (GB)
Title: Test generator
IPC: G01R27/02
Filed: 1973-10-26
Abstract: 1450592 Measuring inductance LICENTIA PATENT-VERWALTUNGS GmbH 26 Oct 1973 [31 Oct 1972] 50027/73 Heading G1U [Also in Divisions H3-H5] In an arrangement for measuring an inductance P, a capacitor C is connected in series therewith and the voltage developed across the capacitor is converted to a pulse train of alternate positive- and negative-going pulses which are displaced by a quarter cycle before being used to energize the  series L-C circuit. The capacitor voltage a is fullwave rectified Gr and passed through a threshold switch to operate a bi-stable FT. The complementary outputs thereof gate the threshold output to the inverting and non-inverting inputs of summing amplifier 2 whose output thus comprises alternate positive and negative going pulses superimposed on a positive D.C. level. This pulse train energizes the L-C circuit to oscillate at a frequency determined;  by the values of P and C. The value of C may be varied to measure the value of P at different frequencies.
Patent GB-1153458-A (GB)
Title: Improvements in or relating to Pressure Responsive Devices
IPC: H01H35/34
Filed: 1966-11-11
Abstract: 1,153,458. Pressure gauges. TEXAS INSTRUMENTS Inc. Nov.11, 1966 [Jan.3, 1966], No.50683/66. Heading G1L. [Also in Division H1] A pressure responsive device comprises a casing 12, 14, a snap-acting diaphragm 22 mounted on the casing and defining a cavity within the casing, and force enerting means mounted on the casing adjacent the peripheral portion 25 of diaphragm 22 and operable to bend the peripheral portion 25 such that the pressure differential necessary to cause snap-action of the diaphragm 22 is adjustable. As shown, the means for bending peripheral portion 25 comprises a ring 26 which when screwed upwards presses member 27 against flexible ring 20. The motion of diaphragm 22 is transmitted by motion transfer member 131 to a switch 100 comprising a plate 102 supporting by glass sealant 112 terminal 108 carrying fixed contact 114 and terminal 110 carrying moving contact 120 on spring 116. In a second embodiment, three diaphragms 22 are used together to give a different operating pressure and this peripheral portions 25 project outside the casing being sandwiched with ring 20 between flanges on the casing, the sandwich being bent outside the casing to bend portions 25. Ring 20 in this case is integral inch member 27 to support member 131. In a third embodiment the sandwich is bent by one or two rings threaded on the outside of the casing each having a projection bearing on the sandwich. In addition the valve of pressure required to operate the diaphragm may be raised by providing a spring member (not shown) within aperture 24 one end of which is fixed and the other end of which bears against portion 23 as described in Specification 1, 077, 825.
Patent GB-1535515-A (GB)
Title: Manufacture of high-quality ceramics
IPC: C04B35/195
Filed: 1975-12-10
Abstract: 1535515 Ceramics QUARZWERKE GmbH 10 Dec 1975 50707/75 Heading C1J A material for manufacturing porous ceramics comprises as a raw material, anorthosite which, if heated for the first time from room temperature up to about 1000‹ C. has a permanent expansion of at least about 1%, the anorthosite being present to compensate for the shrinkage in a clay-containing material containing raw materials which naturally tend to shrink. Preferably the anorthosite is of the kind that has been saussuritized by metamorphosis and/or metasomatosis. The anorthosite may be added together with crushed, foamed and processed blast furnace slag.
Patent GB-1085499-A (GB)
Title: Electrical contact clamp
IPC: H01R4/00
Filed: 1965-11-30
Abstract: 1,085,499. Earthing rails. A. SCHIFFMANN. Nov. 30, 1965 [Nov. 30, 1964], No. 50790/65. Heading H2E. [Also in Division B3] An electrical contact clamp for a railway line has a spindle 10 in screw-threaded engagement with a bush 9, one end of the spindle being provided with a boss 12 which has axially extending slots (13) (Fig. 3, not shown). A cutting ring 15 mounted on the spindle has arms 16 with cutting edges 17, the arms sliding in the slots 13. In order to make the necessary connection to the rail the spindle 10 is turned by a handle 11 thus urging the boss 12 towards the rail. The cutting rmg initially rotates to cut an annular groove in the rail thus exposing the bare metal, but is then gradually pushed axially along the spindle against the action of a spring 19 until the contact edge 21 of the boss 12 is screwed into firm contact with the exposed section of the rail.
Patent GB-1064190-A (GB)
Title: Device for transporting film in cameras
IPC: G03B19/04
Filed: 1965-11-30
Abstract: 1,064,190. Film winding mechanisms. I.S. BATJUTA and D. P. SIDOROVA. Nov. 30, 1965. Na.50853/65. Heading G2A. A fork 8 engaging a film take-up spool is operated by a winding lever 1, the drive between the two being disengaged by a metering member 16 after winding on one film frame. Winding lever 1 is integral with a disc 2 and a shaft 3. Freely mounted on shaft 3 are two sun gears 6 and 7, the latter integral with the fork 8. Disc 2 also carries two planetary gears 4, 5, which engage with each other, and also with gears 6, 7 respectively. A lever 10 pivoting on a shaft 11 has end pieces 12, 13 which can respectively engage either gear 6 or 7. The other end of lever 10 has a tooth 14 which rides on a cam 15 of a metering member 16 having sprocket teeth 17 which engage the film perforations. The Figure shows the tensioned position when shutter release button 28 is about to be pressed, after which lever 1 (and disc 2) is rotated to wind on the film. A cam tooth 21 pushes against an abutment 22 to cause lever 10 to lock gear 6. The planet wheels cause gear 7 to rotate and hence the film is wound on. After the metering means has made one rotation (corresponding to a single frame advance), tooth 14 falls into a slot, rotating lever 10 sufficiently to unlock gear 6 and lock gear 7. Thus lever 1 may continue turning, but no more film is transported. A pawl 23 acts with a toothed sector 25 to prevent reverse movement of lever 1. A pawl 9 can be disengaged from gear 7 to allow film re-wind. The shaft 3 also operates the shutter tensioning means (not shown).
Patent GB-1480403-A (GB)
Title: Microscope objectives
IPC: G02B21/02
Filed: 1974-11-25
Abstract: 1480403 Microscope objective SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 25 Nov 1974 [27 Nov 1973 28 Oct 1974] 50945/74 Heading G2J An objective as shown comprises groups 1-5 with the following focal lengths:- 1 1f to 2À11f 2 3f to 5f 3 5f to 8f 4 12f to 20f 5 -20f to 8À56f When f is the focal length of the entire objective and the interspacing of the groups is:- d 12  = 0f to À2f d 23  = 0f to À2f d 34  = 0f to À2f d 45  = 1À5f to 2À5f
Patent GB-1414506-A (GB)
Title: Resole foams and their preparation
IPC: C08J9/32
Filed: 1972-11-06
Abstract: 1414506 Laminates DOW CHEMICAL CO 6 Nov 1972 [8 Nov 1971] 51181/72 Heading B5N [Also in Division C3] Laminates are made in Examples 9 and 10 by placing a polyester impregnated glass mat or a resole impregnated glass mat on one or both surfaces respectively of a cured resole foam. The foam consists of a cured resole containing expanded microspheres (i.e. monocellular particles) having a shell made of a vinylidene chloride /acrylonitrile copolymer.
Patent GB-1285205-A (GB)
Title: Chain stitch forming device for lock stitch sewing machines
Inventor: YAMASHITA CHIKAO
IPC: D05B73/12
Filed: 1969-10-17
Abstract: 1285205 Lock and chain stitch sewing machine BROTHER KOGYO KK 17 Oct 1969 [21 Oct 1968 5 March 1969 1 Sept 1969] 51243/69 Heading D1G A lock stitch sewing machine is converted into a chain stitch machine by a device inserted in place of the bobbin case, the device including a finger which co-operates with a loop holder to hold the needle thread loop taken by the looptaker until the descending needle has passed through that loop. Three embodiments are described. In the first, Figs. 2 and 6, the device comprises a part 71 of plastics material and a plate 68 provided with the finger 69, the end of which co-operates with parts 90 (and 89, Fig. 5 not shown) on a bridge piece 88. The device has an elongated hole 66 having an inclined portion 67, the hole fitting over the bobbin pin 56. A latch lever 78 controlled by plate 82 engages a notch in the pin 56 to retain the device thereon. A spring 81 urges the face 74 on to the cam lip 73 of the looptaker. As the latter revolves the device is moved up and down by the cam lip 73 to first rise, engage and hold the needle loop (Fig. 3 not shown) and later to move downwards and tilt (Fig. 4 not shown) to shed the loop. In a second embodiment (Figs. 9-11, not shown) the finger (104) cooperates with a loopholder (111) formed by a recess in the underside of the throat plate (54). The device itself is of sheet construction. In a third embodiment, Fig. 15, applied to a machine having a rotary looptaker making two revolutions per needle oscilation, the looptaker is fitted with a cam plate 147 engaging a part 136 of the device, the finger 142 co-operating with a restraining number 124 fitted to the looptaker housing. This device is carried in a case (128, Fig. 12, not shown).
Patent GB-1326264-A (GB)
Title: Railway track and vehicles for use in underground mining
IPC: E01B23/02
Filed: 1970-10-29
Abstract: 1326264 Brakes KRAMPE & CO FERTIGUNG IN BERGBAUBEDARF GmbH 29 Oct 1970 [29 Oct 1969] 51351/70 Heading F2E [Also in Division B7] In a railway system for underground mining, freight cars 62, Fig. 8, run along a track composed of steel tubes 11, 12 supported on sleepers 18; each car runs on flanged rollers having concavely curved rolling surfaces 2 which engage a curved running surface 26 on the tubes, the axles 5 of the rollers being inclined obliquely to the centre of the track. The freight cars are pulled along by a rope, hauled traction car 36, Fig. 5, also running on flanged rollers 43, the traction car being ballasted by a reserve rope drum 36 and a brake fluid reservoir 33 and associated pressurizing installation 34. As shown in Fig. 8, each freight car has a chassis formed of two bars 45, 46 and cross members (47, 48, not shown, Fig. 7), on which are mounted bearings 49 to provide a tipping arrangement for a container 50. The bars 45, 46 are supported on bearing pins 53 which project from brackets 54 attached to a plate 56. By means of a vertical main pivot, the plate 56 rotates on an upper plate 60 of a bogie, each bogie being provided with four rollers fastened by supports 6, 7. As shown in Fig. 6 each freight car is supplied with safety brakes 65 for each bogie. The braking jaws 66, 67, which are tensioned in the direction of closure by a spring (not shown) are rendered inoperative by an hydraulic cylinder 70 supplied with brake fluid from the traction car. As soon as the freight car breaks loose from the traction car, the line running from the reservoir 33, is severed and the hydraulic pressure in the cylinder 70 drops, so that the brakes are applied by the spring. Also described (Fig. 9, not shown) is a system of rope guiding rollers for guiding the haulage rope 40 along the track. A guide system for the loose running rope is also described.
Patent GB-1181122-A (GB)
Title: Production of Pile Fabric
Inventor: BEUCUS ABRAHAM JOHN
IPC: D04B9/14
Filed: 1967-02-02
Abstract: 1,181,122. Knitting. BUNKER-RAMO CORP. 2 Feb., 1967 [7 Feb., 1966], No. 51410/69. Divided out of 1,181,121. Headings D1C and D1K. The subject matter of this Specification is identical with that described in the Specification 1,181,121, but the claims relate to pile fabrics.
Patent GB-1452084-A (GB)
Title: Multi-layer sound and heat insulating glazing panel
IPC: B32B17/06
Filed: 1973-11-06
Abstract: 1452084 Multi-layer glazing panel FLACHGLAS AG DELOG-DETAG 6 Nov 1973 [7 Nov 1972 19 Dec 1972] 51456/73 Heading E1R A multi-layer sound and heat insulating glazing panel comprises two outer plates 1a, 1b and two inner plates lc, 1d. Two inner plates are held by a distance piece 3 and a frame 4 which may be an adhesive strip and which also serves to define the gaps between 1a and 1c and between 1b and 1d respectively. The outer plates are held by distance piece 2 and a layer of adhesive 6. The distance piece 3 may be porous and made of plastics material reinforced with glass fibre; it may be shaped on the inner face to increase sound absorption. The distance piece 2 may be a hollow profile section of metal or plastics material containing a drying agent 5. The spaces between plates 1a and 1c and 1b and 1d may be provided with an interlayer of transparent sound absorbing material e.g. a plastics foil.
Patent GB-1378828-A (GB)
Title: Gloves
IPC: A41D19/02
Filed: 1972-11-09
Abstract: 1378828 Gloves P LARS-JOS 9 Nov 1972 [9 Nov 1971] 51760/72 Heading A3V A glove comprises a back of the hand portion formed of finger pieces 17 to 20 and a metacarpus section 3, a thumb section 5 and a palm portion 2, the finger sections 8 to 11 of the palm portion being arranged with their longitudinal axes inclined in the same general direction of inclination relative to the central line C of the metarcarpus section 6. The angle γ‹ between the axis of each finger section and the line C should be in the range 10‹ to 40‹, and preferably 20‹ to 30‹. The finger pieces 17 to, 20 may be cut separately, in pairs or all in one piece. The metacarpus section 3 may be cut integrally with the palm portion. 2. The fingers of the glove may be arranged to receive more than one finger of the hand. The glove may extend up the fore-arm, may be formed with cut-outs or may have a protective coating or lining. It is stated that the glove of the invention conforms more closely to the hand as the latter moves than do conventional gloves.
Patent GB-1442141-A (GB)
Title: Stock support bushing
IPC: B23B13/08
Filed: 1973-11-08
Abstract: 1442141 Bar-stock feeding BORG-WARNER CORP 8 Nov 1973 [18 Dec 1972] 51921/73 Heading B3B A bar-stock support mushing 21 for supporting an end of an elongated piece of stock 14 in a hollow stock carrier 18 comprises a resilient pliable body having a resilient deformable outer surface 22 adapted to be slidably received within the stock carrier 18, and including a longitudinally extending central aperture defined by opposed gripping surface portions, e.g. 32, 33 for elastically embracing external surface portions of the length of stock 14 and further opposed surface portions not in contact with the stock 14. The bushing 21 prevents noise and the lateral lashing of the end of the stock 14 as it rotates within the stock carrier 18. The carrier 18 may be part of an indexable multitube carrier (11) (Fig. 1, not shown) for use with a multi-spindle machine tool. The bushing is automatically ejected from the end of the stock 14 when the end of the stock reaches a spindle collet. The outside surface of the bushing may act to frictionally rotate the stock carrier 18 about its own axis. The central aperture of the bushing can be shaped to provide elastically deformable gripping surface for square, round, hexagonal or for special profiles. The bushing is formed of a polyurethane elastomer with, optionally, a filler, e.g. carbon black, calcium carbonate, silica, calcium silicate or Dixie clay. A number of examples of materials for producing the polyurethane bushing are described.
Patent GB-1422107-A (GB)
Title: Remote control receiver comprising a switch
IPC: H02J13/00
Filed: 1973-03-28
Abstract: 1422107 Switching systems for consuming apparatus ZELLWEGER USTER Ltd 28 March 1973 [26 April 1972] 52423/74 Divided out of 1416476 Heading H2H [Also in Division H3] An amorphous semi-conductor storage element is used to remember whether an A.C. electronic switch was on or off prior to supply failure and to return the switch to this condition when the supply is restored. In the drawing storage of the state of a triac 2 prior to the failure is effected in a halogen-glass store 4. Two capacitors 54 and 55 are charged through diodes 58 and 59 from a pulse source U3 and the sizes of the capacitors are so chosen that when transistor 29 is switched on the store is brought to its high impedance state and when 31 is switched on it is brought to its low impedance state. Accordingly the pulses from U3 are effective or not at the base of transistor 23 to switch on the triac.
Patent GB-1093419-A (GB)
Title: Electrical insulation of rotating components
Inventor: GUIENNE PAUL FRANCOIS
IPC: H02K1/28
Filed: 1964-12-24
Abstract: 1,093,419. Bonding and insulating components by injection moulding. P. F. GUIENNE, and J. L. GILLET. Dec. 24, 1964, No. 52466/64. Headiing B5A. [Also in Divisions F2 and H2 Two coaxial components of a mechanical assembly comprising at least one rotatable member, e.g. electric motors, bearings, shaft and pinion arrangements, are bonded together by an injection moulding process using an electrically and thermally insulating material comprising a synthetic thermoplastic resin, e.g. a polyamide, and a filler having a modulus of elasticity at least fifty times that of the resin. The filler which is added in an amount between 10-30% by weight of the resin may be mica, glass, sandstone or glass fibre. Embodiments include an armature wherein insulant 3 bonds laminations 2 to a steel shaft 1, an armature having a shaft which is of reduced diameter as at (1a), Fig. 3 (not reproduced), an armature whose shaft (6, 7), Fig. 4 (not shown), is of insulant encircled at its ends by metal bushes (8), and laminations (13), Fig. 9 (not shown), mounted in the frame (14) of an electric motor. In this embodiment and that of Figs. 1 and 2 the laminations may be lined as at (15) and (5) respectively with unfilled resin using an injection mould as shown in Fig. 5 (not reproduced). Fig. 6 (not reproduced), shows a pinion (10) bonded to shaft (1) by insulant (4) and Figs. 7 and 8 (not reproduced) show respectively a shaft bearing with components (11, 12) bonded by insulant (4) and an end-stop bearing similarly comprising two coaxial components bonded together.
Patent GB-1080669-A (GB)
Title: Stopper for ladles or similar receptacles
IPC: B22D41/16
Filed: 1965-12-10
Abstract: 1,080,669. Ladle stoppers. VESUVIUS CRUCIBLE CO. Dec. 10, 1965 [Dec. 18, 1964], No. 52619/65. Heading F4B. A stopper for a ladle or similar receptacle has a stopper head 3 and a plurality of protective sleeves 15 of refractory material which may be applied over the bottom of the stopper rod 7 without necessitating the removal of nuts 13 and washer 14. This is achieved by making the stopper rod 7 which is used to hold the assembly together so that both the flange 8 and the upper section 10 have transverse dimensions of the same order but smaller than the bore 16 of the sleeves 15, the said flange being joined to section 10 by a narrower section 9. The stopper head contains a well 4 having a circular bottom portion 5 and an internally threaded part 6 of slightly larger transverse dimensions, the threads extending to the top of the well. Each sleeve has a central projection 18 at its upper end adapted to enter a countersunk 17 in the lower end of the adjacent sleeve. The rod with its surrounding sleeves, and the stopper head are maintained assembled by externally threaded insert 20 which is screwed into the internally threaded well 4 of the head 3 so as to rest on the flange 8 leaving a diametrically larger portion 22 projecting above the top of the head. The said portion 22 of the insert then enters the countersunk 17 of the lowermost sleeve as shown. With nuts 13 in position shown the stopper is assembled by first applying over the bottom of the rod the required number of sleeves 15. The insert 20 which is in sections is then applied laterally to portion 9 and finally the head 3 is screwed on.