baber/WOPTO huggingface dataset:
Patent GB-1214005-A (GB)
Title: 7-dehydro steroids
IPC: C12P33/00
Filed: 1967-11-07
Abstract: 1,214,005. 4,7-Estradienes. E. R. SQUIBB & SONS, Inc. 7 Nov., 1967 [15 Nov., 19661, No. 37533/70. Divided out of 1,214,004. Heading C2U. The invention comprises hydroxy-4,7-estradienes and 11-oxo-4,7-estradienes, and their preparation by microbial hydroxylation or 11-ketonization of the corresponding 4,7- estradienes. The 11-ones may also be prepared by oxidation of the corresponding 11-ols. Exemplified products are all of the formula wherein one X is OH or the two X's at the 11- position are together oxo and the other X's are each H, Y is OH and Z is H, Me or ethynyl or X and Y are together oxo. The subsequent A-ring aromatization of these products is described as in Specification 1,214,004.
Patent GB-1010827-A (GB)
Title: A system for utilising an fm transmitter to transmit stereophonic signals
IPC: H04H1/00
Filed: 1962-10-04
Abstract: 1,010,827. Stereophonic transmission. RADIO CORPORATION OF AMERICA. Oct. 4, 1962 [Oct. 23, 1961], No. 37648/62. Heading H4L, HR4. In the transmission of stereophonic sound signals L, R, sum and difference signals (LR) are obtained by utilizing an inductive bridge circuit. L and R signals are applied at input terminals 12 and 10 and after passing through pre-emphasis networks 46, 48 are coupled through transformers 50, 52 to the diagonals A-A, B-B, respectively, of a bridge circuit comprising the four primary windings of transformers 54-60. The signal thus developed in primary windings 54, 58 represents (L+R) and is fed to a time delay network 68 via the series connected secondary windings 54a, 58a. The (L - R) signal developed across the primary windings 56, 60 is fed over secondary windings 56a, 60a to diagonal terminals C-C of a diode bridge 70-76. A subcarrier signal of 38 kc/s., generated by oscillator 16 and amplified at 18 is fed through conductor 19 to the junction of windings 56a and 60a and through conductor 20 to a variable tap on the primary winding of transformer 78 connected across diagonal D-D of the diode bridge to form a balanced ring amplitude modulator in which the sub-carrier is suppressed. The signal appearing across the secondary winding of transformer 78 thus comprises the sub-carrier double sidebands representing (L - R) and some harmonics which are filtered out by band pass filter network 84. Finally the (L + R) signal, delayed in network 68 corresponding to the band-pass filter delay, the sub-carrier sidebands and a pilot tone 19 kc/s. signal derived by frequency division from oscillator 16 in a circuit 22, 24 are fed serially over terminals 14 to the exciter of an FM transmitter.
Patent GB-1089714-A (GB)
Title: Improvements in or relating to x-ray analyzers
IPC: G01N23/20
Filed: 1965-09-07
Abstract: 1,089,714. X-Ray diffraction apparatuscrystal plate for monochromator. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 7, 1965 [Sept. 10, 1964], No. 38161/65. Heading H5R. A plate of incidence, e.g. a crystal plate or strip having parallel major surfaces, for X-ray diffraction having the shape of an elongated strip and which on being deflected by a bending force takes the shape of part of a logarithmic spiral is shaped to maximize its tendency to adapt this curvature under bending moments about the line of its greatest width by forces applied at both ends by shaping it such that the strip has four sides the four intersections of which lie on the line of greatest width of the strip and two on the central line of symmetry lying along the length of the strip and such that the two sides which meet in one of the latter two points are convex with respect to the said central line, and the two sides which meet at the other of these two points are concave with respect to the said central line. The sides are preferably curved on one side of the greatest width according to the equation and on the other side of said line according to the equation wherein A is the greatest width, B and #B are the lengths of strip on one side and on the other side respectively of the line of greatest width, r 0  is the average focus distance of the logarithmic spiral over the length of the strip, # is the Bragg angle and x is measured from the largest width in both directions. The strip is preferably constructed of mica and the deflection of the strip is such that it adopts the curvature of the logarithmic spiral, which has a reflection angle # having a cosine of 0À9. As an alternative to mica, the plate may consist of a carrier of metal coated with a substance which has properties suitable to provide the necessary deflection of X-rays. The crystal plate described above is used in monochromators, and in order to prevent weakness of the plate of incidence, the actual points of intersection on the central symmetry line may be replaced by an extended area of the strip.
Patent GB-1274548-A (GB)
Title: Photosensitive device
Inventor: LIDORENKO NIKOLAI STEPANOVICH
IPC: H01L31/047
Filed: 1969-07-30
Abstract: 1,274,548. Semi-conductor devices. N. S. LIDORENKO, A. P. LANDSMAN, D. S. STREBKOV, A. K. ZAITSEVA, V. V. ZADDE, and V. S. KOSAREV. 30 July, 1969, No. 38186/69. Heading H1K. A photo-electric generator comprises an array of parallelepipedal semi-conductor bodies each of which contains a P-N junction 1 lying in a plane transverse to that of the surface 6 of the generator adapted to receive radiation. Conductors 2, 4 interconnecting the bodies also lie in planes transverse to that of the surface 6. The widths of the bodies do not exceed the minority carrier diffusion length in the major part 5 of each body. Several modifications of the illustrated structure are disclosed. The junction 1 in each body may be formed by diffusion or ion sputtering of P into P-type Si and may have parts extending parallel to and adjacent, one, two, three, four or five of the surfaces of the parallelepiped, certain of which parts lie parallel to the irradiated surface 6 of the array in some embodiments. Various conductor configurations are described, including some structures in which the major parts 5 of all the bodies are contacted by a common conductive layer extending completely across one surface of the array and insulated where necessary from the minor parts 3 of the bodies by the provision of insulating material in etched recesses in the bodies. Series, parallel, series-parallel or independently connected two-dimensional arrays of devices are also disclosed. Such arrays may, in some cases, be formed by assembling several of the onedimensional arrays together. In one embodiment a number of Ni-plated slabs of P-type Si containing preformed junctions are brazed together using Pb or Ag foil and the pile so formed is sliced perpendicularly or obliquely to the plane of the junctions. Additional junction parts parallel to the surface to be irradiated may be formed, and parts of the conductors may be etched away to prevent short-circuits. Cr, Ni or Ag are referred to as conductor materials in connection with another embodiment. A generator made in accordance with the invention may be used as a photo-transistor or a PNPN magnetometer when part of the array of elements has been removed.
Patent GB-910609-A (GB)
Title: Improvements in or relating to speed governors for electric motors
Inventor: VINTEN CHARLES
IPC: G03B19/18
Filed: 1959-02-11
Abstract: 910,609. Centrifugal switches. VINTEN Ltd., W. Nov. 17, 1960 [Nov. 11, 1959], No. 38262/59. Class 38 (5). [Also in Group XXXV] A speed governor for an electric motor 11 comprises a rotary contact 7 mounted on shaft 32 and movable axially and outwardly as the speed increases to engage a contact 12 which is biased towards the contact 7 and thereafter to engage a further contact 13 when the motor has reached a predetermined speed. The contact 7 is spring-biased towards the motor and is movable against the bias under the action of centrifugal weights movable about pivots fixed to the motor shaft, the contact 12 being coaxial with the shaft and the contact 13 being annular and concentric with the shaft. A further pair of contacts 40 of which one is secured to the contact 12, the other being fixed, is opened when contacts 7, 12 engage.
Patent GB-350502-A (GB)
Title: Improvements in and relating to the purification of alcohols
IPC: C07C29/74
Filed: 1929-12-13
Abstract: Alcohols, especially those produced by catalytic hydrogenation of carbon monoxide, are purified by a preliminary distillation with caustic alkali or a mixture of caustic alkali and brine, followed by the addition of small quantities of a primary amine of boiling-point above the temperature of distillation of the alcohol mixture, e.g. aniline or its homologues or derivatives of aniline containing negative substituents in the nucleus such as sulphanilic acid, and phosphoric or sulphuric acid to the distillate, and subsequent refractionation.  The two operations may be carried out consecutively and continuously by passing the hot vapours from the alkali scrubbing column into the boiling, alkali scrubbed alcohol containing the required amine and acid in a still fitted with a rectifying column. Examples are given of the purification of the crude methanol and butanol fractions of the product of the catalyzed reaction between carbon monoxide and hydrogen.
Patent GB-359297-A (GB)
Title: Braking device for aeroplanes
IPC: B64C25/48
Filed: 1930-12-19
Abstract: 359,297. Aircraft wheel - braking system. REGNAULT, R. P., 13, Avenue du Jeu du Mail, Pamiers, AriÞge, France. Dec. 19, 1930, No. 38330. Convention date, Dec. 20, 1929. [Class 4.] In an aeroplane braking system a differential cable control is directly actuated by the rudder bar which when rotated from the neutral position tensions one or other of the cables, the system being rendered operative for effecting differential braking by limited application of a hand-lever to which the cables are connected. Cables 4 leading from toggle-operated internal expanding brakes on wheels 1 are led between, guide pulleys 32 around pulleys 38, 39 mounted on a member 34 adapted to swing with the rudder bar 5, and thence between a further pair of guide pulleys to a hand-lever 9. Swinging movement of the rudder causes tensioning of one cable and slackening of the other, this causing differential braking when the hand-lever is moved into the position I shown in Fig. 4 to take in the lost motion of the system. Both brakes may be applied equally by further movement of the hand-lever and held on by engaging the handlever in the stop II of the sector shown.
Patent GB-339127-A (GB)
Title: Improvements in or relating to apparatus for the reproduction of sound having a diaphragm of relatively large surface and a screen plate
IPC: H04R1/34
Filed: 1929-12-17
Abstract: 339,127. Douw, J. C., Hein, J. W. V., Henny, C. H., and Henny, M. A., (trading as Syndicate J. C. Douw's Patents). July 26, 1929, [Convention date]. Loud - speakers; diaphragms. - In a loudspeaker or like sound reproducing device a diaphragm 7 of relatively large surface area is spaced apart from the front baffle or screen plate 1 by a fixed frustoconical sound channel 2 which at its narrower end is connected to the periphery of the diaphragm 7 and at its outer end to an opening in the plate 1, e.g. by a flange 3 disposed at right-angles to the axis of the diaphragm. A hollow conical body 8 is arranged coaxially with the sound channel 2 and connected thereto by distance-pieces 9. Preferably the body 8 and sound channel 2 are each constructed from a sheet of wood with a layer of flexible material attached thereto, and the body 8 is strengthened at its apex by a shaped block of wood 10. Additional support for the inner end. of the channel 2 is provided by a stiffening plate 4, which is attached at 11 to the frame of the loud-speaker unit 6 and is spaced apart from the front plate 1 by supports 5.
Patent GB-935456-A (GB)
Title: Improvements in or relating to presses
IPC: B30B1/08
Filed: 1961-05-10
Abstract: 935,456. Metal marking presses. P. J. HARE Ltd., and P. J. HARE. July 26, 1962 [May 10, 1961], No. 38698/60. Class 83 (4). [Also in Group V] A fluid-actuated press comprises a ram 17 pivotally connected to a beam 25 mounted on a fulcrum 36 and connected at 26 to one element of a fluid-pressure motor 28, 29, the fulcrum 36 being carried by a member 37 movable to turn the beam about its connection 26 for effecting an approach stroke of the ram and thereafter being positively locked whilst the fluid-pressure motor performs the pressing operation. The press may be used for moulding ceramic articles, embossing or cutting leather, or blanking and punching sheet metal; co-operating dies are mounted on the ram and a table 21. Ram 17 is adjustably screwed into a trunnion block 22 pivoted to the beam 25, and the member 37 is pivoted to a pair of crank arms 39 mounted on a shaft 41. The latter carries a gear quadrant 43 meshing with a gear segment 44 on a shaft 45 which is rotatable by a hand lever 46, a foot lever or by movement of a guard, for performing the approach stroke. Alternatively the approach stroke may be performed by liquid pressure means controlled by a manuallyoperated valve. Linkage 37, 39 constitutes a toggle and at the end of the approach stroke, shaft 38 passes over-centre for locking the toggle. Then the lever 46 actuates a valve 49 which directs pressure liquid from an electrically-driven pump 50, Fig. 2 (not shown), into cylinder 29 for performing the pressing stroke which is limited by a screw 58. The return stroke is effected by a spring 35 or the motor may be double-acting. Return movement of the linkage 37, 39 may be assisted by adjustable springs. The motor may be operated by pressure air instead of liquid.
Patent GB-1502582-A (GB)
Title: Cutting device for a folding apparatus of a rotary printing machine
IPC: B65H45/28
Filed: 1976-09-20
Abstract: 1502582 Folding and cutting apparatus MASCHINENFABRIK WIFAG 20 Sept 1976 [27 Oct 1975] 38847/76 Heading B8R Folding apparatus for sheet material 10 includes a folding cylinder 3 and a rotatable cutter blade cylinder 5 which is adjustable about the axis of the folding cylinder. The cutter blade cylinder is mounted on a frame 4 displaceable by a worm drive 8, 9.
Patent GB-1309828-A (GB)
Title: Electric signal circuits
IPC: H03G3/34
Filed: 1970-08-12
Abstract: 1309828 Transistor amplifying and pulse discriminating circuits AMERICAN OPTICAL CORP 12 Aug 1970 [13 Ang 1969] 38851/70 Heading H3T An amplifier includes a differentiator 26a, 27a or 26b, 27b connected to the output and a threshold device T1 or T2 which feeds the differentiated output back to the input if it exceeds the threshold level. The arrangement is used to eliminate unwanted pulses from the output of an ECG amplifier, the circuit 26a, 27a, T1 removing pluses of one polarity and the circuit 26b, 27b, T2 removing those of the other polarity.
Patent GB-913425-A (GB)
Title: A new or improved hand washbowl system for use in water closets and like places
IPC: E03D11/02
Filed: 1959-11-17
Abstract: 913,425. Washbasins. BANCROFT, J. A. Nov. 17, 1959, No. 38864/59. Class 26. A hand washbowl E is included in a watercloset by means of a stay H attached to the flush pipe G and supplied by a pipe A connected to the ball-valve housing. The pipe A coupled at C to a spout D is connected by a coupling B to the valve housing (in a flushing cistern) in place of the more usual blanking cap, so that when flushing, water from the housing flows along the pipe A to the bowl E mounted on a pipe F connected to the flush pipe G.
Patent GB-1446103-A (GB)
Title: Hydraulically setting refractory compositions
IPC: C04B35/63
Filed: 1974-09-05
Abstract: 1446103 Hydraulically setting refractory composition EFSI ETAB POUR LA FABRICATION DE SPECIALITES INDUSTRIELLES 5 Sept 1974 [7 Sept 1973] 38886/74 Heading C1H A heat resistant refractory composition comprises 80-94 parts by weight of refractory aggregates having a grain size of 50Á to 25 mm., 4-12 parts aluminous cement, 2-8 parts of a refractory material having a large specific surface area and high water adsorption capacity of grain size of less than 50 Á, 0À01-0À6 parts of a deflocculating and/or fluidizing agent and 0À01 to 0À6 parts of a setting retardant for the cement. The coarse aggregate may be chromium ore, mullite, sillimanite, kyanite, forsterite, olivine, magnesia, argillaceous sands, calcined refractory clays, chamottes, bauxite, corinidum, tabular alumina or zirconia The fine refractory of large surface area may be chamotte, hyanite, forstenite, magnesia or alumina. The deffiocculating agent may be a polymer phosphate, carbnate, alkaline silicate, soda humate or polyphosphate, the latter also acting as the setting retardant.
Patent GB-989245-A (GB)
Title: An improved method for the sharpening or re-sharpening of integral-tooth profiled milling cutters
IPC: B24B3/08
Filed: 1961-08-08
Abstract: 989,245. Grinding; milling cutters. F. RIEBEL. Aug. 8, 1961 [Aug. 8, 1960], No. 38932/64. Divided out of 989,244. Headings B3D and B3K. A method of sharpening or re-sharpening integral-tooth profiled cutters comprises effecting a straight feed of a grinding-wheel having a profile, which is substantially the complement of the cutting edge of the cutter, along at least a part of the length of the back or relief surfaces of successive teeth of the cutter which is prevented from turning during the grinding process; alternatively, the cutter may be moved relative to the grinding-wheel. The straight feed of the grinding-wheel 22, Fig. 2, along a line 25 causes the grinding-wheel to engage the back surface AGCH of the tooth A of the cutter with line contact over the area AB<SP>1</SP>C<SP>1</SP>C, the grinding-wheel then engaging the surface B<SP>1</SP>GHC<SP>1</SP> when its centre reaches the point M 2  so that the latter surface is concave complementary to the grinding-wheel and merges tangentially with planar surface AB<SP>1</SP>C<SP>1</SP>C. The planar surface may extend only to a line radial from the point C or, providing the grinding is of such a size as not to engage the succeeding tooth R, extend over the whole area AGCH. The grinding wheel 22 may be advanced in a straight line 28, Fig. 6, from the rear of the tooth so that a planar surface B<SP>1</SP>GHC<SP>1</SP> merges tangentially with a concave surface AB<SP>1</SP>C<SP>1</SP>C complementary to the grinding-wheel when the advance of the wheel is stopped with its centre at the point M 2 . When the centre is stopped at the point M 2 <SP>11</SP>, the planar surface extends to the point C. The Specification includes formulae for determining the depth BC, Figs. 4a ... 4d (not shown), of the profile of the grinding-wheel necessary to form the depth AC of the profile of the tooth to produce workpieces having a profile depth AD. The triangle AKI, Fig. 7, represents an amount of wear of the tooth which may then be re-sharpened to reduce the profile of the tooth from AGHC to A<SP>1</SP>G<SP>1</SP>H<SP>1</SP>C<SP>1</SP>. After every three or four sharpenings the front face of the tooth may be re-ground. Re-sharpening of the cutter can be repeated until the profile has the shape AnGnHnCn.
Patent GB-1234868-A (GB)
Title: Container device
IPC: A47B77/04
Filed: 1969-08-04
Abstract: 1,234,868. Cabinets etc.; furniture combinations. CARRARA & MATTA S.p.A. 4 Aug., 1969 [5 Aug., 1968], No. 38981/69. Headings A4B and A4H. A container device for attachment to the underside of a support 13, which may be a bathroom cabinet or shelf, comprises an elongate tray 1 slidably mounted at each end on vertical guide rods 10, each rod 10 having a head 11 engaged with a bracket 12 secured to the support 13, and the tray 1 being movable between an upper position in which the support 13 closes the tray top and a lower position in which access to the tray contents is permitted. Each rod 10 extends through a sleeve 6 secured to the tray 1 and has a pair of spaced notches 14, 14<1>. A catch 15 is biased by a spring 17 to a position of engagement in one of the notches 14, 14<1> to retain the tray 1 in its upper or lower position respectively. The catch 15 is released by manual depression of an integral push button 18.
Patent GB-1156254-A (GB)
Title: Photographic Camera
IPC: G03B7/12
Filed: 1967-08-23
Abstract: 1,156,254. Photographic cameras. HATTORI TOKEITEN K. K. Aug. 23, 1967 [Aug. 24, 1966], No.39021/67. Heading G2A. A photographic camera has a first automatic exposure system and second semi-automatic exposure system a single exposure meter being provided for use with both systems, means also being provided for selecting either system. The first system has means for automatically selecting exposure time and aperture according to the response of the meter and the second system has means for manually selecting a desired exposure time and means for automatically selecting an appropriate aperture, the sensitivity of the meter being changed automatically when a change is effected from one system to the other. A stepped plate 3 co-operates with the pointer 6 of exposure meter 53 upon depression of release button 1 such that the button is arrested according to the ambient illumination measured by the meter. The plate 3 has a lower end 3b carrying a pin 8 engaging an arm 10a of a diaphragm ring 10 rotated counter-clockwise by a spring 9 to close blades 12. A rotatable aperture selecting ring 14 has a mark "A" and an aperture scale 17, each alignable with a fixed mark 15. A pin 21 engages cam 14a when the mark "A", depicting automatic operation, is set to register with mark 15, such that end 18a of a locking member 18 is not coplanar with end 3b of plate 3. When ring 14 is set for manual exposure the end 18a is brought into engagement with the end 3b. A pin 55 engaging cam portion 14b rotates diaphragm ring 14 through a lever 22. A speed regulating ring 25 has a cam 25b engaged by a pin 31 extending from a gear segment 30 of a delay mechanism. A time selecting ring 32 has cam slots 32b, 32c engaged, by pin 31 and a pin 42. The pin 42 adjusts the sensitivity of the meter 53 through levers 41, 46, and 49. A photo-conductive element 51 is positioned behind a film sensitivity ring 36 having apertures 36a alignable with the element according to the film sensitivity set by a scale 38. In the operation, according to the first system the downward movement of plate 3 rotates ring 10 clockwise an amount depending on the movement of stepped plate to set an appropriate aperture. Further depression of button causes shutter release. In the second system, the ring 32 is adjusted from position 'A' to the required speed setting thus actuating levers 41, 46 and 49 to adjust the sensitivity of the meter 53 by switching out shunt resistance 54. On depression of button 1, the plate 3 causes rotation of ring 10 to an appropriate aperture. A manual over-ride is achieved by rotating selecting ring 14 until mark 15 coincides with a desired diaphragm setting.
Patent GB-1006279-A (GB)
Title: Improvements in or relating to a multi-stage centrifugal compressor
IPC: F04D17/16
Filed: 1963-10-03
Abstract: 1,006,279. Centrifugal compressors. F. J. GORMAN. Oct. 3, 1963 [Oct. 25, l962], No. 39027/63. Heading F1C. In a multi-stage centrifugal compressor having impellers 4, 5, 6 each provided with a porous intake disc 7, 7<SP>1</SP>, 7<SP>11</SP> and an adjacent impervious disc 8, 8<SP>1</SP>, 8<SP>11</SP> to move fluid axially through the porous disc and radially outwardly between the discs, the casing has an inlet at one end, an outlet 13 at the other, and a portion surrounding the impellers in the shape of a bellows. The bellows portion comprises frustoconical diverging sections 11, 11<SP>1</SP>, 11<SP>11</SP> and frusto-conical converging sections 12, 12<SP>1</SP>, which direct the fluid to the adjacent downstream impeller and thereby provide an axial flow of fluid in increasing pressure stages. The casing may be reinforced by an outer tube 14. The impeller discs are of flexible material thereby permitting removal of the casing for replacement of the porous discs.