baber/WOPTO huggingface dataset:
Patent GB-626338-A (GB)
Title: Improvements in or relating to magnetic amplifying circuits
IPC: H03F9/02
Filed: 1947-10-15
Abstract: 626,338. Non-contact making relays. ELECTRO METHODS, Ltd., and TWEEDY, S. E. Oct. 15, 1947, No. 32601/46. [Class 40 (iv)] In a magnetic amplifier of the saturable reactor type comprising A.C. windings A1-4, self-excitation windings B1-4 fed from the A.C. input through rectifiers R, and D.C. input windings C1-4, the D.C. output being developed in a common load impedance L fed differentially from the A.C. input through the rectifiers R, Fig. 7, or through further rectifiers V, Fig. 8, impedances Z1, '2, which may be resistors, are connected across the pairs of windings B1, 2 and B3, 4 or across the A.C. terminals of the rectifiers R in order to adjust the load current to zero when the D.C. input is zero, while capacitors K1, 2 are connected across the pairs of A.C. windings A1, 2 and A3, 4 in order to maintain that condition in spite of variations of voltage or frequency of the A.C. supply.
Patent GB-986833-A (GB)
Title: Improvements in or relating to fluid flow-control valves
IPC: F16K47/10
Filed: 1962-08-24
Abstract: 986,833. Valves. W. CARLS. Aug. 24, 1962 [Aug. 25, 1961], No. 32687/62. Heading F2V. Steam from an inlet 12 to an outlet 14 passes through an opening 68 in a nipple 24, the area of which opening is controlled by a needle valve 66 threaded into the nipple; whilst the valve 66 cannot completely close the opening 68 the degree of the throttling afforded thereby is indicated both by the number of grooves 41-45 visible above the top of the nipple 24, and the position of an offset pin 50 relative to spaced axial graduation lines on the upper part of the nipple. A plastic plug 83 prevents the needle valve from turning due to vibration. A bore 84 in the lower part of the valve casing houses a removable cartridge 96 containing a ball-type non-return valve 102 by-passing the needle valve 66 but which remains closed when fluid flows from the inlet to the outlet. Return flow of fluid from outlet 14 to inlet 12 passes through a passage 92, parts 120, 110, 112, the valve 102, port 122 and a passage 90 so avoiding the throttled path via the needle valve. In another form a different cartridge is employed, the ports, passages and non-return valve in which provide for a parallel path across the needle valve when the fluid flows from the inlet to the outlet, which path is closed when the fluid flow reverses.
Patent GB-989411-A (GB)
Title: Process for the separation of hydrocarbon mixtures
IPC: C07C7/152
Filed: 1963-08-19
Abstract: Non-paraffinic hydrocarbons including aromatics are separated from each other or from paraffins by contact in the fluid state with a silver dialkyl phosphate.  The hydrocarbons may be contacted in the liquid phase with an aqueous solution of a silver dialkyl phosphate containing up to 6 carbons in each alkyl, particularly silver methyl ethyl phosphate, at 0-10 DEG  C. and complexed hydrocarbons are recovered by heating to 30-50 DEG  C. Preferably such aqueous solutions also contain 0.5-2 mols. of a mono- or dialkyl phosphoric acid per mol. of silver salt.  In one embodiment a mixture of paraffins and olefins is contacted with aqueous silver di-n-propyl phosphate when three layers are formed. The upper paraffin layer is separated, the lower olefin and aqueous layers are heated, olefins recovered, the aqueous layer is then mixed with the paraffin layer and heated and the aqueous solution separated and re-used.  In the gaseous phase hydrocarbons may be contacted with an inert granular solid on which is absorbed a silver salt which may be water-insoluble, particularly silver di-2-ethylhexyl phosphate.  Many separations of diolefins, olefins and aromatics are specified and it is stated that olefin are preferentially absorbed in the following order:  cis-olefin = a -olefin >trans-olefin>tertiary olefin.
Patent GB-1282365-A (GB)
Title: Butterfly valve having improved positive closure means
Inventor: HAENKY NORMAN H
IPC: F16K1/24
Filed: 1970-07-06
Abstract: 1282365 Valves FWI Inc 6 July 1970 32695/70 Heading F2V In a butterfly valve, each of the two parts 24A, 24B of the valve spindle extends into a recess 36 in a respective one of two valve plate lugs 34 and is retained within its recess by a pin 38 extending through the lug and the spindle part, the outer diameter of the spindle being lesser than the inner diameter of the respective recess and the diameter of pinreceiving bore 42 in the spindle being greater than the diameter of the pin. Each lug is formed with a cam surface 44 which when the valve plate is in a position transverse to the valve flow axis, coacts with a part 46 of the valve housing to so urge the plate towards the seat ring assembly 18, such axial movement of the plate being facilitated by the nature of the connection between each spindle part and the lug. The seat assembly 18 comprises an annular ring 50 which is screw-threaded on its outer periphery and which carries a resilient sealing ring 74. Ring 50 may be formed with a screwthreaded radial bore for accommodating a locking screw engageable with the internally screw-threaded, seat ring accommodating portion of the valve housing. Figures 4 to 10, not shown, depict modifications of the seat ring assembly including modes of relieving pressure tending to dislodge the resilient ring 74.
Patent GB-1282366-A (GB)
Title: Balancing bridge optical transmission telemetering device for measuring an electrical quantity associated with a power line
IPC: G01R15/24
Filed: 1970-07-06
Abstract: 1282366 Measuring an electrical quantity MERLIN GERIN 6 July 1970 [7 July 1969] 32703/70 Headings G1A and G1U In an apparatus for measuring an electrical quantity wherein the plane of polarization of a polarized light beam is modified by a transducer (e. g. a Faraday element) sensitive to said electrical quantity a measuring bridge with means to automatically balance the apparatus to compensate for ageing phenomena &c. can be used to measure a D.C. or low frequency electrical quantity. In one embodiment, Fig. 1 a polarized light beam 10 is directed as shown through a Faraday element 20 connected to a power line 22 and through a Faraday element 24 connected to an amplifier 58 on to a semi-reflective plate 64. A second light beam 62 which is modulated at a frequency greater than that of the quantity to be measured, is also directed on to the semi-reflective plate 64. The two beams are each split by a further semireflective plate 28 and directed via analyzers 34 and 36 on to a pair of photo-cells 38 and 40 which are connected in the arms of measuring bridge 42 as shown. The measuring bridge comprises two fixed resistors 44, 46 and a potentiometer 48, and is connected to a differential amplifier 52 whose output feeds a low pass filter 54 and a high pass filter 56. The output of the high pass filter 56 due to the balancing beam 62 provides an "error" signal indicating any unbalance of the bridge 42, and the signal passes via amplifier 59 to actuate a servomotor 60 to return the bridge to its balanced position by control of the potentiometer 48. The output of the low pass filter 54 (i. e. that due to the beam 10) feeds the coil 26 via the amplifier 58 and the value of the electrical quantity is determined in the manner described in Specification 1094286. Two other embodiments are described. One Fig. 2 (not shown), in which the servosystem is non-mechanical and consists of adjustable sources of direct current controlling the balancing of the bridge. In the other Fig. 3 (not shown), the main beam and the secondary balancing beam 62 are directed in spatial opposition towards an optical device comprising two focusing lenses (82) (84) arranged back to back with a semi-reflective surface 86 between them. The semi-reflective surface consists of a thin metallized layer as described in Specification 1164073.
Patent GB-388140-A (GB)
Title: Improvements in power transmitting devices or belt gearing
IPC: F16H7/16
Filed: 1931-11-25
Abstract: 388,140. Belt gearing. WOODHOUSE, R. L., 13, Stratford Place, London.- (Wilhelm, H. F.; 36, Ampere Parkway, East Orange, New Jersey, U.S.A.) Nov. 25, 1931, No. 32725. [Class 80 (i).] Relates to automatically-tensioned belt gearing of the kind in which a driving or driven shaft carries a pinion engaging an internally toothed belt pulley which is eccentrically supported on the shaft. A sleeve 1 secured to the shaft 2 fixedly carries a pinion 6 and loosely supports eccentric bearing-plates 9, 10 on which run the pulley 11. Antifriction material 18 may be interposed between the plates 9, 10 and the pulley. Eccentric side-plates 22, 22<1>, also loose on the sleeve 1, enclose the gearing, the central chamber being oil-filled.
Patent GB-1356166-A (GB)
Title: Press for moulding rubber and the like
IPC: B30B15/00
Filed: 1971-07-13
Abstract: 1356166 Cleaning press moulds ITALTRADE 13 July 1971 [24 July 1970] 32738/71 Heading B5A A device for removing residual material or ejecting moulded articles from press moulds comprises a rotating brush which is displaceable vertically and horizontally in synchronism with the movement of the press. In the embodiment the brush is a cylinder 1 having longitudinal rows of bristles 2 and is driven by a motor 5 and carried by support plate 7. Plate 7 is vertically displaceable by a ram 10 relative to a second support 15 and carries guide columns 9 on either side of the ram sliding through collars on support 15. Support 15 is adjustably positioned along guide rods 8 at a suitable distance from the surface of the mould. Rods 8 are secured to the moving platen 12 and supported on rollers 13 secured to the stationary platen 16 so that the brush moves horizontally with the moving half 17 of the mould. The bristles may be metal or preferably plastics at least 10 mm. long.
Patent GB-174049-A (GB)
Title: Automatic machine employed for shaping tubes and other pieces of glass by re-heating or re-burning, for the purpose of cutting them and closing them with flat ends or bottoms
IPC: C03B23/11
Filed: 1921-12-07
Abstract: 174,049. Meyer, A., and Battistelli, H. Jan. 13, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Forming vials and the like articles.-Relates to machines of the type in which short lengths of glass tubing are heated in the middle and separated to form small vials or the like. According to the invention, the tubular blanks are placed upon an incline 1, Fig. 12, and released singly by plates 3, 4 which are raised alternately by cam mechanism. The released blank rolls on to two sets of rollers 8 mounted on carriages 12, 13, Fig. 6. Rollers 27 then descend and hold the blank 2 down on the rollers 8 and a flame 53 impinges upon its centre. When the blank has softened sufficiently, the carriages 12, 13 are separated by the action of cams 18, 19 and the finished vials &c. are released by the rollers 27 and lifted off the rollers 8 by pivoted fingers 33, Fig. 12.
Patent GB-1396794-A (GB)
Title: Molybdate orange and molybdate red
IPC: C09C1/00
Filed: 1972-07-14
Abstract: 1396794 Molybdate red and orange pigments HOECHST AG 14 July 1972 [15 July 1971] 33009/72 Heading C4A Molybdate red or orange pigments of improved fastness to SO 2  are obtained by precipitating on the pigment hydrated oxides of antimony and silicon, and calcium fluoride. Any water-soluble compounds containing the ions antimony, silicon, calcium and fluoride may be used, particularly the mixture of antimony trifluoride, sodium silicate and calcium chloride. The antimony and silicon compounds may be precipitated simultaneously, or successively in either order, the pH being adjusted after each addition to precipitate the hydrated oxide, followed by the calcium fluoride, after which the pH is adjusted to 6-8. The product should contain 1-5% by wt. each of antimony and silicon compounds calculated as Sb 2 O 3  and SiO 2 , and 1-6% calcium fluoride, as CaO. The pigments may also contain a precipitate of one or more of the hydroxides or oxyhydrates of aluminium or titanium, or salts of rare-earth metals. Reference has been directed by the Comptroller to Specification 1,137,330.
Patent GB-1167227-A (GB)
Title: Improvements in or relating to Potentiometric Recorders
Inventor: THORY RONALD GORDON
IPC: G01R17/20
Filed: 1967-07-19
Abstract: 1,167,227. Potentiometric measuring systems. PYE UNICAM Ltd. July 18, 1968 [July 19, 19671, No.33111/67. Heading G1U. In a potentiometric measuring system in which the (D.C. ) reference supply 24 is provided with a switch 22, 23, 25 enabling either a linear 19 or a non-linear 21 potentiometer to be selected for energisation and which is automatically balanced by means of an error signal amplifier 11 and a servomotor 15 coupled to both potentiometer sliders, when the non-linear potentiometer is selected further contacts 30, 31, 34 of the switch connect the linear potentiometer into the amplifier circuit so that the amplifier again becomes dependant on the position of the sliders. This compensates for the changes in loop gain with slider position that would otherwise occur when the non-linear potentiometer was being used, thus maintaining constant sensitivity. Preferably the linear potentiometer is connected as part of the load resistance of an intermediate stage of the amplifier, the output to the next stage being taken from its slider. When the linear potentiometer is itself selected for use a fixed resistor 33 is connected in the amplifier circuit in its place. The non- linear potentiometer may vary logarithmically, and a pen recorder 16 may be coupled to the sliders.
Patent GB-1422367-A (GB)
Title: Automatic drawing machine with control apparatus
IPC: B43L13/02
Filed: 1973-07-11
Abstract: 1422367 Automatic control of a drawing machine SOC GENEVOISE D'INSTRUMENTS DE PHYSIQUE 11 July 1973 [12 July 1972]  33125/73 Heading G3N An automatic drawing machine 10, e.g. optically working on a photo-sensitive material, is controlled by an (analogue) control device 9 directly in response to signals from a co-ordinate reader 7 which reads a drawing, and a "tabulator" 8 of complementary information. In the prior art, control is via the intermediary of a punched tape, and the invention is to dispense with this stage. Provision is, however, additionally made to produce such a tape at 12 and/or to control the machine by a tape read at 11, the inventive control then being disconnected.
Patent GB-1074342-A (GB)
Title: Rake type cooling beds for light-section rolling mills
IPC: B21B43/02
Filed: 1964-08-14
Abstract: 1,074,342. Rolling. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Aug. 14, 1964 [Aug. 16, 1963], No. 33245/64. Heading B3M. [Also in Division B8] In a rake-type cooling bed 12 for light-section rolling mills, rolled bars 4 enter a trough 5 and lifting slides or retarders 10 in their lowered position form a part of the trough bottom plate. A straightening plate 11 of the cooling bed 12 is adjacent the entry trough 5, the bed comprising a movable upright 17 between each pair of adjacent fixed uprights 13. The uprights 17 are mounted on a common frame actuated by eccentrics in bearings set in the foundation. An hydraulic jack provides for limited horizontal movement of the frame whereby the first serration 18 may be in the trough 5 or in the region of the plate 11 (Fig. 2, not shown). Round or square section material enters the trough 5 at high speed and is slowed to half its entry speed by partially raising the slides 10, whereupon the slides are fully raised and the material is brought to a standstill on the plate 11. Angle and other similar section material enters the trough relatively slowly and is stopped on the partially raised slides 10, whereupon the upright 17 engages the material and lifts it from the trough on to the plate 11. In alternative embodiments, the hydraulic jack may be replaced by an eccentric or the like or by a crank coupled to a link mechanism (Fig. 3, not shown).
Patent GB-1209092-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: KUHN ARNO
IPC: H01L21/00
Filed: 1968-07-12
Abstract: 1,209,092. Semi-conductor devices. CKD PRAHA, OBOROVY PODNIK. 12 July, 1968 [14 July,1967], No. 33323/68. Heading H1K. A semi-conductor avalanche device which exhibits non-destructive avalanche breakdown and contains at least one PN junction 5 comprises a body of P-type semi-conductor material 1 having round its circumference a layer 4 of N-type material wherein there is an impurity concentration gradient, maximum concentration being at the circumference. The impurity concentrations on either side of junction 6 are such that the avalanche breakdown cannot spread across the junction 6 to the surface of the body. The body has at least one bevel where the included angle α between the bevelled surface 7 and a tangent plane to the junction 6 at all points where the junction meets the surface of the device is in the range 65 to 150 degrees. In maufacture, N-type impurity is diffused into a rod of P-type semi-conductor material to form a circumferential N-type region having a radial depth of between 100 and 1000 Ám., so that when the rod is sliced a plurality of similar devices is obtained having the circumferential layer 4 as required. The semi-conductor material used is silicon and the layer 4 is formed by diffusion of phosphorus. Complementary devices have a P-type circumferential layer formed by diffusion of boron or aluminium.
Patent GB-206723-A (GB)
Title: Improvements in or relating to centrifugal cream separators
IPC: B04B9/12
Filed: 1922-12-06
Abstract: 206,723. Risberg, J. V. M. Dec. 6, 1922. Density separators; suspending and balancing. -A cream separator has a bottom part 1 and top 3 held together over a tightening ring 4 by a nut 5. The joint between the top and bottom is located approximately at the horizontal plane passing through the centre of gravity of the bowl, and the material near the joint is of considerable thickness to ensure that the moment of inertia with respect to the rotary axis is greater than that with respect to an axis through the centre of gravity at right angles to the rotary axis. The liner discs in the bowl have an angle of about 60‹. The driving spindle 8 has a rounded end on which the bowl is suspended so that the bowl can adjust itself during rotation. A cross-pin 11 in the bottom part 1 rests in a slot 12 in the spindle 8.
Patent GB-1330004-A (GB)
Title: Arrangement for roofs walls or the like
IPC: E04D3/363
Filed: 1970-07-09
Abstract: 1330004 Fixing roofing; walling &c sheets to building structures COMALCO Ltd 9 July 1970 [10 July 1969] 33357/70 Headings E1K and E1W A roof, wall or like covering sheet as described in the divided specification is fixed to a building structure by first assembling a number of metal clips 32 to an aluminium alloy strip 46 by inserting lugs 34 of each clip into slits 52 and bending them over underneath the strip, then securing the strip 46, 'by means of screws passed through holes 54, to a batten of the building structure, additionally securing each of the clips by a screw passed through an aperture 44 in a recessed portion 42 of the domed top of the clip, and finally engaging a rib 20 of the covering sheet over each clip such that inwardly directed fold portions 26 of the sheet, which form inclined upwardly facing grooves to receive arms 38 of the clip, are wedged between the ends 40 of the arms 38 and raised springy portions of the clip formed by slitting the strip longitudinally to provide pairs of slits 56 and pressing the portions between the slits upwardly. In an alternative form of strip (Fig. 4, not shown) the slits (58) of each pair are joined at one end by a semi-circular slit portion (60) so that a single continuous slit is provided, by which tongues are formed which are pressed up to provide the raised springy portions (62).
Patent GB-995135-A (GB)
Title: Improvements in or relating to apparatus for and methods of cutting pre-measured blanks from continuous webs of material and feeding said blanks to a wrapping machine
IPC: B65H19/10
Filed: 1961-09-18
Abstract: 995,135. Toothed gearing; couplings. AMERICAN MACHINE & FOUNDRY CO. Sept. 18, 1961 [Sept. 30, 1960], No. 33391/61. Headings F2Q and F2U. [Also in Division B6] In a label cutting machine (see Division B6) a feed roller 42 is driven intermittently by differential gearing having a continuously driven bevel gear 78 freely rotatable on a shaft 72, a bevel gear 82 secured to the shaft 72, and a segmental gear 84 on a hub 86 freely mounted on shaft 72. A pinion 88 carried by the hub 86 engages gears 82, 78. The segmental gear 84 is oscillated by a gear segment 90 on an arm 92, Fig. 6 (not shown) rocked by a cam 98. During oscillating movement of the gear 84, Fig. 5, in one direction the pinion 88 transmits rotary motion to the gear 82 and shaft 72 and in the opposite direction the shaft 72 is stationary. Couplings.-A reel core 283 is clamped to an arbor by fins 228, each of which is provided at one end with studs 284, 286 engaging in a ring 270 and in an adjustable ring 272 which can be clamped to the ring 270 by thumb screws 278. With the thumb screws loosened, and on rotating the reel clockwise, the upper edge of at least one fin engages the inner surface of the core 283 and pivots about the stud 284, and since the fins are interconnected by the ring 272 the other pivot simultaneously to clamp the reel core 283 to the arbor. The thumb screws are then tightened to lock the fins in place.
Patent GB-668225-A (GB)
Title: Improvements in mixers for preparing solutions in hydraulic pipings
IPC: B01F3/08
Filed: 1949-12-30
Abstract: 668,225. Mixing liquids in flow. FRIEDMANN, G. Dec. 30, 1949 [Dec. 31, 1948], No. 33407/49. Class 86 [Also in Group XXVIII] A mixer for preparing solutions in hydraulic pipes comprises a chamber 1 into which there opens a convergent nozzle 2 adapted to be connected with a supply pipe 3 for water under pressure and a suction pipe 4 for the liquid to be mixed with the water, and which chamber opens into a diffuser 5 coaxial with the nozzle 2, there being interposed between the nozzle 2 and diffuser 5 a rotatable support 6 formed with a plurality of mouthpieces 13 having different diameters and being arranged around the axis of rotation of the support which can be fixed in different angular positions in each of which one of said mouthpieces is put in communication with the diffuser. At least one of the mouthpieces 13 may be provided with grooves extending longitudinally of the mouthpiece, or with helical grooves. Specification 16751/13, [Class 102(i)], is referred to.
Patent GB-212307-A (GB)
Title: A new or improved under-garment
IPC: A41C1/06
Filed: 1922-12-07
Abstract: 212,307. Taylor, C. M. Dec. 7, 1922. Addition to 196,226. Undergarments. - An undergarment of the kind described in the parent Specification is modified by extending upwardly the freely divided front opening h and providing closing means, such as lacing eyelets, for this opening. The shoulder straps, which may include in their length a strip of elastic, may be completely detachable, and the garment may be shortened and connected by eyelets and lacing g, or by hooks and eyes, to a brassiere portion e, which may be of lace.