baber/WOPTO huggingface dataset:
Patent GB-1488435-A (GB)
Title: Multi-line multi-mode modulator
IPC: H04L27/12
Filed: 1975-08-21
Abstract: 1488435 Multi frequency data transmission INTERNATIONAL BUSINESS MACHINES CORP 21 Aug 1975 [21 Nov 1974] 30552/76 Divided out of 1488433 Heading H4P The description of the embodiments is identical to the parent Specification, but the claims are directed to a multi line multi mode modulator for successively modulating a plurality of different input signals on to a plurality of output lines in which one of n different modulations of m types can be selected for any output line by having a number of stored addresses at least equal to the number of lines which uniquely define the modulation type for any particular line. Frequency and phase modulation arrangements of the types claimed in Specifications 1,488,433 and 1,488,434 are employed. In the multitone generator per se pairs of frequencies are transmitted to convey information as in "touch tone" signalling, e.g. auto dialling, by selecting one each from two groups A, B each having four frequencies i.e. 16 possible pairs which may provide 10 numeric and 6 control digits. Four parallel data bits D0-D3 identifying pairs of frequencies are applied with anti phase clock pulses C1, C2 to address generator 31-2 which selects increments of angular position ##1 or ##2, D0, D1 selecting one of four values ##1, and D2, D3 selecting one of four values ##2 in C1, C2 clock times respectively, under the control of word LCW. Outputs of 33-2 are applied to one input of 34-2 continually operated in an add mode which acts in conjunction in C1 time with feedback register 36-2 so that ##1 is successively added to its content, and alternately in C2 time ##2 is successively added to content of 37-2, both under control of read/write memory 35-2. After each addition, output is applied through #/sin # converter (ROM table) to a further adder 47-1 and register 45-1, controlled to read during C 1 time and during C2 to write into adder 47-1, output being gated, at trailing edge of C2 to d/a converter 43-2 connected to RC filter 44-2. If the arrangement employs sufficiently low baud rates, band width reduction techniques of copending applications need not be used. Fig. 8 (not shown) discloses a block diagram for multi mode multi line modulators, having m input lines, time showing the modulator which has separate multitone/frequency/phase address generators sequentially enabled in any specified order or any mix of the lines, signals being distributed by a synchronized second multiplexer (63) through m output lines having RC filters (64-1). A common master clock and m address LCW unit defines the modulation required for each line at any one time and which can be changed manually or by programme. Fig. 8 is described in greater detail with respect to Fig. 10 (not shown).
Patent GB-245084-A (GB)
Title: Means for controlling the operation of switches and the like
IPC: H01H71/32
Filed: 1925-12-03
Abstract: 245,084. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Dec. 24, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Electrically-released switches.-A permanent magnet a, with integral pole-pieces c, co-operates with an armature b to hold a switch in one of its positions, and when a coil d, surrounding the pole-pieces and extending across the air-gap e between them, is energized sufficiently by current which produces a flux through the pole pieces in the same direction as the permanent flux, the armature-retaining flux is reduced whereupon the armature falls away thereby bringing the switch to its other position. The pole-pieces may be constituted by a single fixed core between the arms of the permanent magnet, leaving an air gap at each side, and surrounded by the winding d. The releasing winding produces a flux which tends to strengthen the permanent magnet. The device may be used as an overload trip, the current to be controlled passing continuously through the winding, or it may be operated by distant control by the distant momentary energization of the winding. In order to adapt the device to control by currents which may be in one direction or the other, two tripping devices as described operates a single switch through the link k, Fig. 3. The windings d on the two cores are connected in series and wound in different directions so that with one direction of current one armature b is released to operate the switch and with the other direction of current the other armature is released to operate the switch in the same direction. Alternatively, one tripping armature may be operated with excess current and the other by distant control.
Patent GB-1067517-A (GB)
Title: New a-nor-b-homo-steroid and process for its manufacture
IPC: C07J69/00
Filed: 1964-08-04
Abstract: The novel D 5-3-oxo-6,17b -dihydroxy-7aa ,17a -dimethyl - A - nor - B - homo - estrene (which may be in the tautomeric 3,6-dioxo-17b -hydroxy - 7aa ,17a -dimethyl - A - nor - B - homo-estrane form) is prepared by ultra-violet irradiation of 3-oxo-4,5-oxido-17b -hydroxy-7a , 17a -dimethyl-estrane in an aliphatic or cyclic ether. The anabolic steroid of the invention may be made up into pharmaceutical or veterinary compositions or included in animal fodder. Tablets, dragees, capsules, solutions, suspensions, emulsions, ointments and creams which may contain preserving, stabilizing, wetting or emulsifying agents, salts for varying the osmotic pressure or buffers are referred to.
Patent GB-1474390-A (GB)
Title: Debris guard
IPC: F02C7/05
Filed: 1974-09-27
Abstract: 1474390 Air intakes for gas turbine engines debris guards DEFENCE SECRETARY OF STATE FOR 27 Sept 1974 [27 June 1973]  30636/73 Heading F1G The invention relates to a debris guard for mounting on the intake of an engine such as a gas turbine engine, the guard being in the form of a grid of porous tubing and connected to a source of de-icing liquid which liquid is caused to leak through the porous tubing. The tubing may be of stainless steel gauze, a sintered metal or ceramic or a fibre reinforced plastics material. The tubing may be of faired section.
Patent GB-1194425-A (GB)
Title: Machine for Cutting a Spiral Groove in a Bearing Surface
IPC: B23B5/48
Filed: 1967-07-04
Abstract: 1,194,425. Machine tool for grooving bearing members. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 4 July, 1967 [6 July, 1966], No. 30675/67. Headings B3L and B3T. A machine for cutting a helical groove in an internal surface of a bearing member comprises a resiliently mounted tool capable of movement rotationally and axially relative to the member and cam means arranged to be located within the member and adapted to displace the tool against the surface for the length and depth required for the groove. A threaded spindle 6 is supported in a screw threaded support 4 so that when the spindle is rotated through a gear 8 a tool holder 9 carried by the spindle is fed axially and rotationally towards a bearing member 3 held in clamping means 2. The tool holder 9 has resilient tongues 10 each supporting a cutting tool 11 and having inwardly directed shoulders 12. An elongated pin 14 with a cam portion 16 extends within the tool holder and spindle and is carried forward therewith by the engagement of shoulders 12 with the portion 16 until movement of the pin 14 is arrested by abutment against the end surface of the bearing member 3. Continued movement of the spindle and tool holder causes the tools to ride out over the cam portion 16 thereby cutting a helical groove of depth and length determined by the dimensions of the cam portion and of pitch determined by the screw thread 7. Reverse rotation of the spindle draws the pin out of the bearing member so that cutting is not effected on the return stroke. In a further embodiment grooves are cut in a conical surface of a bearing member the cam portion being correspondingly conically shaped. Turning.-In an alternative arrangement the toolholder is held stationary and axial and rotational movement are imparted to the bearing member.
Patent GB-826721-A (GB)
Title: Improvements in or relating to jacks for knitting machines
Inventor: SHELMIRE STANLEY RAYMOND
IPC: D04B9/38
Filed: 1955-10-27
Abstract: 826,721. Knitting-machines. SCOTT & WILLIAMS Inc. Oct. 27, 1955, No. 30746/58. Divided out of 825,207. Class 74 (2). A tiltable patterning jack 10 for reception in slots in a needle carrier of a knitting-machine, comprises a fulcrum 12 on one longitudinal edge of the jack, a plurality of butts (such as 16a- 16d, 20a-20d and 22) on the other longitudinal edge and to each side of the fulcrum, for selection by cams, thereby to effect rocking of the jack, operating butts 18, 24 on said other longitudinal edge, one butt at each side of the fulcrum, said operating butts having downwardly-opening notches 19, 26 for engagement by cams for imparting longitudinal movements to the jack, said rocking being effective to selectively move the operating butts into or out of position for said engagement, and said other longitudinal edge having a portion 21 at one side of the fulcrum which is substantially parallel to a portion 13 of said one longitudinal edge which is on the opposite side of the fulcrum.
Patent GB-409689-A (GB)
Title: Improvements relating to upholstered chairs
IPC: A47C7/72
Filed: 1932-11-02
Abstract: 409,689. Chairs. TAYLOR, R. H., 15, Trafalgar Road, Birkdale, Southport, Lancashire. Nov. 2, 1932, No. 30827. [Classes 52 (ii) and 52 (iii).] An upholstered chair has two sides 4, Fig. 2, of box construction, side rails 3<a> sloping downwardly from front to rear and slidably supporting a seat 7, a back 8 hinged to the seat and supported on a rail 9, springs 10 tending to draw the back into upright position, and an upholstered hinged section 5, Fig. 1, to one or both sides which normally folds on to the top of the side, but which can be folded back as shown to constitute, with the top 4<a> of the side, a table. Where one side only is adapted to form a table, the other side may be provided with a hinged section 6 which closes a space 4<c> adapted to serve as a storage compartment. A pipe-rack 4<d> may also be provided.
Patent GB-617888-A (GB)
Title: Prefabricated building construction
IPC: E04B1/21
Filed: 1945-11-19
Abstract: 617,888. Portable buildings; walls and roofs. BIGARD, A. J. E. L. Nov. 19, 1945, No. 31044. Convention date. Dec. 19, 1944. [Classes 20(i) and 20(iv)] A building of prefabricated elements has foundation members or footings 1, 2 bound to one another and resting directly on the ground, these elements gripping between them the bases 3 of the posts of the framework. Opposite footing elements are staggered with respect to one another, Fig. 2, and are joined by bolts 10 and dovetail joints 29. The ends of floor joists 7 are held in notches 6 in the inner elements 1 by means of metal straps 9 passing through the joists, some of these plates also serving to connect adjacent elements The upper ends of the uprights are connected by elements 17 resting on shoulders 12 and tied together by means of metal straps 21, 22. The straps 22 pass through the ends of trusses 14 resting on the tops of the uprights. The roof and outer walls are formed of overlapping tiles 16 which hook on to tenons 15 on the uprights and the roof trusses. The inner wall is formed of plaster plates 22b held at the foot by a U-section beam 26 and at the top by a butt-strap 27. The ceiling panels 28 rest on ledges 28b of the elements 17. The trusses 14 are tied together at the ridge by bracing (not shown).
Patent GB-923482-A (GB)
Title: Improvements in or relating to vehicle hoods
IPC: B60J10/90
Filed: 1958-09-29
Abstract: 923,482. Vehicle hoods. J. P. M. REID. Sept. 28, 1959 [Sept. 29, 1958], No. 31081/58. Class 108(1). The flexible covering 7 has an insert 11 in a pocket 10 formed as a hem of the covering 7 and is inserted in a groove 3 formed in the top rail 1 of the windscreen to retain the hood fabric in position.
Patent GB-136565-A (GB)
Title: Improvements in Milking Machinery.
Inventor: DAYSH NORMAN JOHN
IPC: A01J5/10
Filed: 1919-12-11
Abstract: 136,565. Daysh, N. J. Nov. 4, 1916, [Convention date]. Cow-milkers.-Relates to milking-machines of the type in which a main pulsator d, Fig. 1, is connected by a pipe-line e to secondary pulsators r mounted on the milk pail or claw, and consists in the interposition in the pipe-line e of one or more relay pulsators or valves f by which the pulsations are transmitted undiminished to distant parts of the system. The relay pulsator comprises a cylinder m, Fig. 2, to which the pipe-line e is connected at one end, the other end having a reduced area open to the atmosphere. The piston n has ports p, q by which air is admitted to the secondary pipe-line g at one end of the stroke, and the annular space between the piston and cylinder connects the vacuum supply o to the pipe g at the other end of the stroke. Specification 10967/14 is referred to.
Patent GB-251230-A (GB)
Title: Improvements in or relating to feed devices for thermionic valves
IPC: H01L35/00
Filed: 1925-12-09
Abstract: 251,230. Parravicino, G., and Parravicino, G., (Assignees of Lazzaro, U.). April 23, 1925, [Convention date], Void [Published under Sect. 91 of the Acts]. Thermo-electric batteries. -A thermo-electric battery is heated by a resistance energized from a power supply so as to provide heating current for a valve filament and potential for the plate or grid. In a modification the heating may be by gas, alcohol or petroleum. As shown, insulated metal strips T are cemented at one end in a block B of refractory, heat-retaining material and heated bv a resistance M covered by a refractory block B'. The other ends S' of the strips are cooled by air passing through apertures f<1> in a housing R and guided by baffles P. In a modification the plates are arranged radiall about a central cylindrical refractory block heated by gas or a stove.
Patent GB-309372-A (GB)
Title: Improvements in or relating to ball or roller clutches
IPC: F16D41/07
Filed: 1928-01-28
Abstract: 309,372. Miller, W., and Lamb, H. T. Jan. 28, 1928. Divided on 310,564, [Class 80 (ii), Gearing, Variable-speed &c.]. Locking by frictional detents.- The friction ratchet device described in Specification 271,338, [Class 80 (iii), Linkwork &c.], is modified by substituting a freely-revoluble ring 8 for, say, the inner set of rollers or balls. The device is applicable as a ratchet clutch or ratchet gear, but, as described, is applied to a sprag or detent for preventing backward rotation of a motor-vehicle transmission shaft, and is controlled conjointly with a free-wheel clutch. The driving- member 3 of the free-wheel clutch is slotted to receive the sprag rollers 7, which coact with the spring-pressed wedges 9 and with the ring 8, freely mounted directly or by ball or roller bearings on an extension 3a of the part 3. When the part 3 turns clockwise, the wedges 9 are jammed by the rollers 7 against a liner 2 in a stationary drum 1, bolted to the gear-box (not shown), except when they are obstructed by bevelled stops 5 on a sliding collar 4, which carries also control-stops 6 for the freewheel clutch. The Provisional Specification describes the substitution of the loose ring for the inner rollers of the double-acting form shown in Fig. 9 of Specification 271,338, the springs being omitted.
Patent GB-1481964-A (GB)
Title: Process for the manufacture of 17beta-oxalylsteroids
IPC: C07J41/00
Filed: 1974-07-15
Abstract: 1481964 Esters of 20-keto-21-oic-acids of the pregnane series SCHERING AG 15 July 1974 [14 July 1973] 31243/74 Heading C2U Steroids of the partial formula (ring D shown) (wherein R 1  is CH 3  or C 2 H 5 ; R 2  is H or CH 3 ; R 3  is C 1-8  alkyl or benzyl; and St is the remainder of the steroid molecule) are prepared from steroids of the partial formula by reaction in an aprotic solvent with a deprotonizing agent containing an alkali or alkaline earth metal, Cu (I) or Tl (z) and optionally with salt of Cu (I), Tl (I) or Ag (I) followed by oxidative splitting with oxygen. In the products, standard interconversions may be effected in other parts of the steroid molecule. Novel products are 3-methoxy-20-oxo-19-nor- #<SP>1,3,4,(10)</SP>-pregnatrien - 21 - oic acid ethyl ester; 3# - hydroxy - 20 - oxo - #<SP>5</SP> - pregnen - 21 - oic acid ethyl ester and its 3-acetate; 3,20-dioxo- #<SP>4</SP> - pregnen - 21 - oic acid ethyl ester; 3,3- (2<SP>1</SP>,2<SP>1 </SP>- dimethylpropylenedioxy) - 20 - oxo - #<SP>5</SP>- pregnen - 21 - oic acid ethyl ester; 3,20 - dioxo - #<SP>1,4</SP> - pregnadien - 21 - oic acid ethyl ester; 3,20-dioxo-#<SP>1,4,(11)</SP>-pregnatrien-21-oic acid methyl ester; 3,3-ethylenedioxy-20-oxo- #<SP>5,9,(11)</SP>-pregnadien-21-oic acid methyl ester; 3,20-dioxo-#<SP>4,9(11)</SP>-pregnadien-21-oic acid methyl ester; 3,3 - (2<SP>1</SP>,2<SP>1 </SP>- dimethylpropylenedioxy) - 20 - oxo - #<SP>5</SP> - pregnen - 21 - oic acid butyl ester; and 3,20-dioxo-#<SP>4</SP>-pregnen-21-oic acid butyl ester. The first, fourth, sixth and last of these are pharmacologically active and may be made up into pharmaceutical compositions with suitable carriers. Starting materials of the Formula (II) are prepared from the corresponding 17-keto-steroids by reaction with alkyl or benzyl esters of cyanoacetic acid and catalytic hydrogenation of the resulting alkyl or benzyl 20-cyano-#<SP>17(20)</SP>-pregnen- 2-oates. 3,3 - (2<SP>1</SP>,2<SP>1</SP> - Dimethyl - propylenedioxy) - #<SP>5</SP>- androsten - 17 - one is prepared from 17#. acetoxy - #<SP>4</SP> - androsten - 3 - one via 17#. acetoxy - 3,3 - (21,21 - dimethyl - propylenedioxy)- #<SP>5</SP>-androstene and the corresponding 17#-ol. Specification 1,472,922 is referred to.
Patent GB-1189434-A (GB)
Title: Thigh Guard
Inventor: STEPHENS NORMAN WHITAKER
IPC: A41D17/00
Filed: 1968-07-01
Abstract: 1,189,434. Thigh guard. N. W. STEPHENS. 16 Aug., 1968 [1 July, 1968], No. 31269/68. Heading A3V. A thigh guard comprises a flexible gaiter 1, means 2, 3, 4, 6 for securing it upon the thigh and a protective facing pad 10 of hard material. The facing pad 10 is preferably made of stainless steel and is secured by rivets 9 to the gaiter preferably made of leather. Through the slot 5, at the top of the gaiter, passes one end of an adjustable webbing strap 6 which has a stitched in loop 7 and a buckle 8. The loop 7 is intended to be transversed by a trouser belt. The guard may be tapered for a comfortable fit.
Patent GB-485120-A (GB)
Title: Improvements in or relating to relaxation oscillation generators
IPC: H03K4/18
Filed: 1936-11-16
Abstract: 485,120. Relaxation oscillators. STANDARD TELEPHONES & CABLES, Ltd., and BLACK, D. H. Nov. 16, 1936, No. 31344. [Class 40 (v)] The condenser of a relaxation oscillator is discharged in part by a secondary electron stream set up in a vacuum tube. A condenser C<1> is charged, e.g. over a resistance R<1> to such a value that the potential of the second grid of valve V renders the valve conducting. The anode of the valve V is coated with material, e.g. caesium oxide on silver, capable of emitting secondary electrons, so that the normal cathodeanode electron flow results in a flow of secondary electrons from the anode to the second grid. The condenser is therefore discharged over two paths, viz. by primary electrons from the cathode to the second grid, and by secondary electrons from the anode to the second grid. The current in R<2> is applied over condenser C<2> to the first grid to render it more positive and accelerate the flow of primary electrons. The discharge may be initiated by a synchronizing impulse applied to the first grid.
Patent GB-729724-A (GB)
Title: A hydraulically operated automatic clutch control device for automobile vehicles
IPC: F16D48/04
Filed: 1953-11-12
Abstract: 729,724. Operating clutches. SOC. ANON. A. CITROEN. Nov. 12, 1953 [Dec. 24, 1952] No. 31371/53. Class 80(2). A hydraulically-operated control device, for automatically effecting the engagement and disengagement of a friction clutch 28 in a motor vehicle, comprises a first hydraulic circuit including a pressure accumulator 2, for effecting the disengagement of the clutch, and a second hydraulic circuit, for engaging the clutch, containing a pump 4 operated by the engine so that its delivery pressure is proportional to the engine speed, a distributing valve 10 in the two hydraulic circuits being operated in accordance with engine speed to connect the first hydraulic circuit either with the pressure accumulator 2, to effect disengagement of the clutch against the force of the clutch springs, or with a liquid reservoir 1, to allow the clutch to be engaged by the clutch springs. The first hydraulic circuit contains a pump 3 which draws liquid from the reservoir 1 and supplies it under pressure to the accumulator 2 and to a conduit 12. A jet 5 is provided in parallel with the engine driven pump 4 to ensure that the pressure of the liquid it supplies to a conduit 6 is proportional to engine speed. The clutch 28 is disengaged on the admission of liquid under pressure through a conduit 13 to a servomotor cylinder 14. The distributing valve 10 comprises a piston 16 in a bore, the piston having a groove 17 at its centre so that the conduit 13 can be put into connection either with the conduit 12 and pressure accumulator 2 to disengage the clutch, or with a conduit 11 leading back to the reservoir 1 to allow the clutch to engage. The base of the valve piston 16 is connected by a by-pass 13<SP>1</SP> to the conduit 13, and the back effect of the clutch engaging springs maintains pressure in the servomotor cylinder 14 and conduit 13 to urge the piston 16 up into engagement with a piston 8. The piston 8 is pressed down by a spring 9 and is in a cylinder 7 to which the enginedriven pump 4 supplies liquid through the conduit 6. With the vehicle engine idling, the piston 8 and valve piston 16 are held down by the spring 9, the conduits 12; 13 are connected and the clutch is held disengaged by the action of the liquid in the pressure accumulator 2. As the engine speeds up, the increasing pressure in the conduit 6 urges the. piston 8 upwards, the conduits 11, 13 are gradually brought into connection and the clutch is engaged by its springs as the pressure in the servomotor cylinder 14 falls. A relief valve 31 in the cylinder 7 limits the pressure which can be applied to the piston 8. Should the vehicle engine stall, the clutch is immediately disengaged. An over-riding lever 32 can be raised by hand to engage the clutch when it is desired to start the engine by towing the vehicle.
Patent GB-1353281-A (GB)
Title: Railway system
IPC: B60L13/04
Filed: 1972-07-05
Abstract: 1353281 Railway systems KRAUSSMAFFEI AG 5 July 1972 [9 July 1971] 31453/72 Heading B7L In a railway system having a levitated vehicle 1 electromagnetically supported and guided with respect to a rail 8, the rail 8 has a U-shaped profile and pairs of supporting and guiding electromagnets 2, 3 are provided with exciter coils 6 on U-shaped cores 4, the pairs 2, 3 being alternately offset to one side and the other of the vertical central plane 13 of the rail 8 (Fig. 1) so that each electromagnet provides not only a vertical supporting face P 2 , Fig. 4, but also a horizontal guiding face Py, which forces Py for each of the pairs 2, 3 are equal and opposite and cancel each other with the vehicle symmetrically disposed with respect to the rail 8. Rows of pairs of the electromagnets 2, 3 are provided on the substructure on each side of the vehicle 1 (only one side shown in the Figures. ) and the pole faces 10, 11 may be inclined to the horizontal, as shown, or may simply be horizontal with a straight cut-off. Separate excitation for the pairs 2, 3 of electromagnets is preferably provided, such that for example by inducing excitation current for the pairs 3 and amplifying that for the pairs 2 a resultant guiding force Py to one side may be provided for a constant supporting force P z . Furthermore or in addition a lessening or increase in the supporting face P z  can be achieved by joint regulation of the supply to the electromagnets 2, 3.