baber/WOPTO huggingface dataset:
Patent GB-879622-A (GB)
Title: Steroids
Inventor: CAMERINO BRUNO
IPC: C07J1/00
Filed: 1959-07-13
Abstract: The invention comprises 4-hydroxy-19-nortestosterone 17-b - cyclopentylpropionate and the preparation thereof by treating 4,5-epoxy-19-nortestosterone 17-b -cyclopentylpropionate with sulphuric acid in an organic solvent, e.g. acetic acid.  The above process may be modified in that the 4,5-epoxy-19-nortestosterone 17-b -cyclopentylpropionate is prepared by acylating 4,5-epoxy-19-nortestosterone with a b -cyclopentylpropionic acid halide such as the chloride, in the presence of a tertiary amine, and the 4,5-epoxy-19-nortestosterone may be prepared by treating 19-nortestosterone with hydrogen peroxide in an alkaline medium. Detailed examples are given.ALSO:A therapeutic composition comprises 4-hydroxy - 19 - nortestosterone 17 - b  - cyclopentylpropionate and compatible pharmaceutically acceptable carrier.  The composition may be in the form of a solution in a fluid vehicle in the form of a gel or in the form of a microcrystalline suspension in an aqueous medium.
Patent GB-319121-A (GB)
Title: Improvements in or relating to electro-mechanical vibrating devices for use, for example, in loud speakers
IPC: H04R11/00
Filed: 1928-08-21
Abstract: 319,121. Trouton, M., and Wireless Music, Ltd. Aug. 21, 1928. Magnetic instruments. - The armature of an electromagnetic vibratory device, such as a telephone instrument, is pivoted about a movable axis, the displacement of which effects a rotation of the armature, the effective radius of said rotation being different from the radius of vibration of the armature. The vibratory member comprises two portions, a magnetic portion a, b, and a member 2 which may be of an aluminium or magnesium alloy, at right angles to each other and pivoted at 12. The member 2 bears against a stop 14, which may be adjustable, and provides a restoring force by bending. The spindle 12 rests at each side of the vibrator upon a fixed inclined member 13, and adjusting screws 15, or a single adjusting device, force the spindle 12 down the inclined surface 13, springs acting in the direction 16 serving to press the spindle against the screws. If the stop 14 is fixed the required movement is produced. The free length of the member 2 may be adjusted by moving the stop 14 in a direction parallel to it or the position and free length of member 2 may be varied simultaneously by moving the stop 14 in an oblique direction, when the adjusting screws 15 produce insufficient effect. Specification 299,537 is referred to.
Patent GB-291653-A (GB)
Title: Improvements in ships' hatch coverings with regard to their sealing and otherwise
IPC: B63B19/21
Filed: 1927-09-13
Abstract: 291,653. Trouwborst, P. C., Arts, P. J. T., and Schuurman, W. H. A. E. Sept. 13, 1927. Hatches. - The hatchway is divided into sections by beams 7 provided with rollers to facilitate their movement over the coamings 5. The beams are grooved at either side to form guides for the sections of the hatch cover which consist of articulated slats 11 the sections meeting on the centre line of the hatch and being secured by locks 26. The sections are wound on rollers 10 mounted on shafts 12 in compartments 15 arranged on either side of the hatch coaming. The operating handles 20 are on shafts 19 geared to pinions 16 on the shafts 12. Clutch gear is employed to reverse the direction of motion. Specifications 25799/10, 26756/09, 105,189, 109,172, and 239,640 are referred to.
Patent GB-241008-A (GB)
Abstract: 241,008. Hardaker, J. T. Oct. 14, 1924. Jacquards.-The griffes 4, 4<a> are operated by brackets 9 fixed to the guiding-bars 10 of the griffes and furnished, with studs connected by rods 7 to two double-armed levers 6, 6<a> on a shaft 3 arranged near to the griffes, so that the bearings 2 for the shaft may be close to the end frames 5. A stud on one of the arms 6 is operated by a connecting rod 12 and crank pin 13 on a disc or crank on a shaft 15 driven by duplex chain gearing from the crank shaft 24. Specification 25980/10 is referred to.
Patent GB-1392659-A (GB)
Title: Method for making metal-to-ceramic joints
IPC: B23K35/02
Filed: 1972-05-23
Abstract: 1392659 Brazing; ceramic-metal joints VARIAN ASSOCIATES 23 May 1972 [1 June 1971] 24129/72 Headings B3R and B3V In a method for joining, by brazing, a metal member, e.g. of tantalum, tantalum alloys, molybdenum, columbium (niobium), columbium alloys, to a ceramic body, e.g. of alumina, a brazing powder mixture, preferably suspended in a volatile vehicle, e.g. butyl methacrylate and comprising a majority by weight of columbium powder and a second metal powder of iron (preferably 17%) or nickel (15%), is coated on the ceramic body, e.g. by roller coating, brushing dipping or spraying when mixed with the vehicle, and the metal member applied thereto, whereafter the assembly may be dried and compressed and then is fired, preferably in vacuum, at a temperature, e.g. between 1500-1675‹ C. sufficient to produce only a partial melting of the powder mixture such that upon cooling a solidified bonding phase of the brazing mixture is formed interstitially of undissolved columbium particles for bonding the undissolved particles to the ceramic body and the metal member, whereby the particles form a ductile metal "bridge" therebetween. A first metallizing layer, e.g. molybdenum and tungsten may be applied by vacuum evaporation, sputtering, or sinter firing a metallizing paint to the ceramic before powder coating.
Patent GB-869283-A (GB)
Title: Improvements in and relating to the preparation of rubber
IPC: C08K5/17
Filed: 1957-07-30
Abstract: The resistance to oxidative degradation by natural or synthetic unvulcanized polyisoprene elastomers on heating or in storage is increased by the addition to the latex or the raw solid polymer of reducing substances, exemplified by polyalkylene polyamines such as diethylene triamine, triethylene tetra-amine and tetraethylene pentamine, aromatic diamines such as benzidine and phenylene diamine, hydrazine, and alkali metal sulphites and bisulphites. The reducing action of the selected additive may be supplemented by a chelating agent such as ethylene diamine tetra-acetic acid or its salts. Specification 676,189 is referred to.
Patent GB-772596-A (GB)
Title: Improvements in or relating to control means for induction motors
IPC: H02P29/00
Filed: 1953-09-02
Abstract: 772,596. Control of A.C. motors. IGRANIC ELECTRIC CO., Ltd., and TAYLOR, J. R. Sept. 2, 1954 [Sept. 2, 1953]. No. 24264/53. Class 38(3) An induction motor M has the A.C. winding W1, W2, W3 of a three-phase saturable reactor connected between respective secondary resistors R1, R2, R3, and star-point P. The D.C. winding W4 of the reactor is energized in accordance with the output of a device D wherein a reference voltage derived from supplylines L2, L3, is compared with a control voltage obtained from two of the secondary terminals of the motor. When the motor is rotated by means of its load, the slip, and the control voltage both increase until the reference voltage is exceeded whereupon the reactor becomes saturated to increase the motor torque. In this manner, the torque is arranged to reach a value sufficient to ensure that the slip does not become excessive, the reference voltage being adjustable to vary the slip at which the control voltage becomes effective to energize the winding W4: In one form of the device D, the' reference voltage is supplied to rectifier T having resistor R4 across its output terminals, the source of control voltage being connected to an opposing rectifier T1 and the winding W4 to leads P2, P3. The rectifier Tl prevents energization of the winding W4 if the reference voltage exceeds the control voltage, but permits it if the control voltage is the greater. In a modification, Fig. 2 (not shown), the saturable reactor is of the single phase type and has the ends of its A.C. winding connected through respective secondary resistors to two of the secondary terminals of the motor, the third terminal being disconnected from the circuit. A magnetic or other amplifier may be connected in cascade with the winding W4.
Patent GB-245835-A (GB)
Title: Improvements relating to building blocks bricks or the like
IPC: E04B2/30
Filed: 1924-10-14
Abstract: 245,835. Bennett, J. F., and Bennett, T. A. S. Oct. 14, 1924. Blocks, special shapes of.-Relates to building blocks of the type comprising two slabs connected by tie-rods and separated by an air-space, and consists in a block composed of slabs of different materials integrally connected together by means of tie-rods and provided with means whereby adjacent blocks may be interlocked therewith. Figs. 1 and 2 show two blocks with half dovetailed recesses at the ends and with projections and recesses 4, 5 respectively. They are connected by tie-rods 3 with fish-tailed ends which slope downwardly towards the outer surface of the wall. Many different shapes of blocks are illustrated and various forms of interlocking projections and recesses. The inner slab is made of a material lighter in weight than the outer one and is preferably of material which will permit internal wooden fittings to be nailed directly to it without plugging. It may be roughened on the inner surface to receive plaster.
Patent GB-703320-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A9/54
Filed: 1950-10-05
Abstract: 703,320. Ordnance mountings; disposing of spent cartridge cases. MOLINS, D. W., POCOCK, F., HOPKINS, S. R., and MOLINS MACHINE CO., Ltd. Jan. 4, 1952 [Oct. 5, 1950; Nov. 22, 1950; Sept. .5, 1951], Nos. 24391/50, 28598/50 and 21026/51. Class 92(1)  A device for disposing of spent cartridge cases for a gun mounted in a turret, comprises a receptacle 2 into which the cases are ejected base first, means to move the cases open end first out of the receptacle, and a guide to guide the case so moved so as to cause it to move in a desired direction for disposal. In the construction shown a spent case from the breech 1 falls as indicated by the arrow into the receptacle 2, its path being guided by guides 8, 9A, 9B. On entering the receptacle the case depresses a hinged plate 35 which closes a micro-switch in circuit with a motor 21. This motor serves three purposes, namely to drive a rammer 19 which lifts the case through a shoot 4, 14 towards an ejection opening 15 in the turret, to open and close a hinged door 18, for the opening in suitable timed relation with the rammer, and to tilt a hinged plate 38 to guide the case towards the shoot. The motor drives a chain 20 to which the rammer is connected, and the lower sprocket 48 of the chain drives a sprocket of a chain 81 which, by means of sprocket 82, shaft 49, and gears 50, 51, drives a shaft 52. Sprockets 43 on shaft 52 drive an endless chain carrying a pin which works in an inclined slot of a plate secured to the plate 38 and thereby serves to impart the required tilting movements to the latter. When the case has been lifted to the upper limit of its travel it is ejected through the opening 15, the door 18 having been opened in the meantime by a crank 30 driven by the motor shaft. A cam 32 on a shaft 29 driven by the motor now closes a switch 31 to reverse the motor, and thus to reverse the movements of the door, rammer, and mechanism driven by chain 81. A further cam 34 actuates another switch 33 to stop the motor when the parts return to their original positions. Specification 703,319 is referred to.
Patent GB-409974-A (GB)
Title: Improvements in electrode arrangements for electric arc converters
IPC: H01T11/00
Filed: 1933-09-04
Abstract: 409,974. Spark-gap apparatus. MARX, E., 3, Rankestrasse, BUCHWALD, H., 6A, Bammelsburgerstrasse, and KRAHL, G., 4, Ratsbleiche, all in Brunswick, Germany. Sept. 4, 1933, No. 24493. Convention date, Sept. 3, 1932. [Class 40 (v).] Relates to spark-gap apparatus for converting high voltages of the kind described in Specification 400,934. In order to avoid undue lengthening of the arc, with corresponding heatlosses and burning of the electrodes, a current of gas blows and spreads the " root " of the discharge through openings in the centre of the main electrodes J, Fig. 1. The gas enters through grids B, and flows through passages formed between the electrodes J and guiding members A. A rotating member C serves to increase the velocity of the gas centrally. Fixed members D, located inside the main electrodes, break up the gas stream and decrease its velocity. The parts D may be of insulating material; or they may be of metal and may form either part of, or function as the main electrodes. A constant or alternating voltage may be applied between the outer and inner electrodes. In Fig. 2, ring-shaped members L with openings M serve to equalize and direct the flow of gas. The gas may be given a spiral motion; and means may be provided for sucking or blowing away residual gas liable to form eddies.
Patent GB-870040-A (GB)
Title: Process for partially dehalogenating di- and trihaloacetic acid
IPC: C07C51/377
Filed: 1959-07-16
Abstract: Di- and tri-haloacetic acids are partially dehalogenated by passing the vapours escaping from the liquid acids or from their solution in a suitable solvent (such as acetic acid), with the help of a carrier gas or reduced pressure, at a temperature below 150 DEG C. and together with hydrogen, over a hydrogenation catalyst. Suitable carrier gases are hydrogen, nitrogen and carbon dioxide; suitable catalysts are metals of Group VIII of the Periodic Table and their salts.  At 100-140 DEG C. di- and/or trichloroacetate acid produces mainly monochloroacetic acid, and at 60-100 DEG C. mainly dichloroacetic acid.  At 60-100 DEG C. di- and/or tri-bromoacetic acid produces mainly monobromoacetic acid.  A suitable starting material is the recycled liquid obtained by the continuous chlorination of acetic acid.  Some acetic acid is also obtained.
Patent GB-740900-A (GB)
Title: Improved method of, and apparatus for, wire drawing
Inventor: CHRISTOPHERSON DERMAN GUY
IPC: B21C3/10
Filed: 1952-10-01
Abstract: 740,900. Drawing wire. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 23, 1953 [Oct. 1, 1952], No. 24581/52. Class 83 (4). In wire-drawing apparatus in which wire 14, e.g. copper or mild steel, drawn through a tube 9 having a restricted outlet or die 5 drags liquid lubricant into the tube, the viscosity of the lubricant, length and clearance of the tube and speed of the wire are such that the pressure near the outlet is sufficient for the lubricant to perform all or part of the deformation of the wire in advance of the restricted outlet or die 5. The die 5 is secured in a die-holder 6 having a flared outlet 7 and threaded on to the tube 9. Alternatively the restricted outlet may be an integral part of the tube. A mineral oil or an aqueous lubricant may be used. Specification 566,434 is referred to.
Patent GB-458944-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B7/12
Filed: 1935-09-04
Abstract: 458,944. Multitubular steam boilers. WOLLASTON, T. R., Bank of England Chambers, Tib Lane, Cross Street, Manchester. Sept. 4, 1935, No. 24615. [Class 123 (ii)] [See also Group XII] One or more flue tubes g are provided in the steam space of return-tube steam boilers and accommodate a number of tubes h through which the whole or a part of the air for combustion is passed. With producer gas firing the heated air constitutes the secondary air supplied through a conduit m to the burner. With gas or oil firing refractory radiant members such as described in Specification 300,298, [Class 51 (i)], may be mounted in the furnace tubes. Specifications 305,288, [Class 51 (i)], and 377,767, [Group XII], also are referred to.
Patent GB-407069-A (GB)
Title: Improvements in or connected with sockets, pins, plugs and other components used for electrical or other purposes
IPC: H01R13/428
Filed: 1932-09-03
Abstract: 407,069. Bolts. REID, L. H., 28, Victoria Street, London. Sept. 3, 1932, No. 24617. [Class 89 (i).] A socket, pin, stud, &c. for electrical or other purposes is secured to a plate, panel &c. by passing a shank 1 formed on the socket &c. through a hole 2<a> in the panel &c. 2, passing over the shank a washer 3 furnished with bent teeth 3<a>, and pressing or deforming the teeth so that they grip the shank. Some of the teeth 3<b>, Fig. 6, may be bent oppositely to the others to penetrate the panel &c. One or more tags 3<c> may be formed on the washer for the connection of wires thereto. The deformation of the teeth may be effected by means of a hollow punch, or, if the shank is screw-threaded, the washer may be used in conjunction with an ordinary clamping nut.
Patent GB-1530755-A (GB)
Title: Machine for taking stereoscopic photographs
IPC: G03B19/07
Filed: 1977-06-14
Abstract: 1530755 Stereoscopic photography LEXIE REAL ESTATE ESTABLISHMENT 14 June 1977 [24 June 1976] 24671/77 Heading G2A A stereoscopic camera has two lens systems and mirror means such that the right and left images are produced in reversed order on the film. As shown, the left-hand image I S  is reflected by mirrors 5 and 7 to pass through a lens system 9 and diaphragm 10 falling on the right-hand side PS of the film area. Similarly, the right-hand image ID is reflected by mirrors 12 and 14 to pass through lens system 16 and diaphragm 18 falling on the lefthand side PD of the film. A wall 3 separates the areas P D  and P S  so as to avoid mutual interference and a wall 20 is also provided for the same purpose. Mirror 12 can pivot on hinge 12A to allow for adjustment for the distance of the object. By crossing the images in this way when the photographs are made on reversible positive film the developed images are in the correct position for stereoscopic viewing.
Patent GB-690100-A (GB)
Title: Improvements in or relating to supporting mechanisms for drums, spools or the like
IPC: B65H67/056
Filed: 1949-09-26
Abstract: 690,100. Winding wire &c. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., GRIFFITHS, F. T., and BAWTREE, E. Sept. 26, 1950 [Sept. 26, 1949], No. 24676/49. Class 120(ii) Drum or the like supporting mechanism of the kind in which the drum or the like is wound with a continuous strip of wire or the like has said mechanism provided with a bearing assembly on which the .drum is rotatably mounted and which is mounted on a carriage movable to and frc between two positions, in one of which the drum is rotated and in the other of which the drum may be detached without axial movement from the carriage and replaced. As shown a spindle 3 passes through a drum 1 which is clamped between a wing nut (not shown) and a flange 15 which has pins 16 for driving and holding the drum. The spindle 3 is rotated through the medium of a gear wheel 17 in mesh with a continuously driven gear wheel (not shown) and is carried in bearings 19 and 20 in vertical portions 21 and 22 of the headstock 5. This headstock 5, the spindle 3 and drum 1 constitute a unitary assembly detachably mounted on a carriage in the form of an arm 25 pivoted at its lower end to a platform 26. The headstock 5 is mounted on the arm 25 by means of rods 32, 34 engaging lugs 31, 33 on the head 27 of the arm 25 and grooves in the faces 36, 37 of the headstock 5. The rear rod 34 has a flattened face 35 between the lugs 33 so that upon its rotation removal of the headstock 5 from the arm 25 is possible. The arm 25 is held in the upright position by means of a latch member 39 which can be lifted by means of a foot pedal 44 to permit the arm 25 to be rotated to its second position by means of a handwheel operating a worm 49 and a segment 48 of a wormwheel fixed to the arm 25. As the arm 25 rotates to its second position a pinion 47, connected to one end of rod 34 through a unidirectional clutch or free wheel engages an arcuate rack (not shown) on a pedestal (not shown) and is rotated by it. Thus the rod 34 is rotated to the position which permits the removal of the headstock 5 from the arm 25. A lever 53 is fixed to the rod 34 so that the latter can be returned to its locking position when a new bearing assembly and drum has been mounted on the arm 25. As an alternative the headstock may be locked to the arm 25 by means of spring-urged bolts withdrawable by cam, electric or hydraulic means during the swinging movement of the arm. Also simple lever mechanism or electric or hydraulic means may be provided to swing the arm 25 up and down in place of the manually operated gearing shown. Specification 690,099 is referred to.
Patent GB-319895-A (GB)
Title: Improvements in or relating to the distillation of solid carbonaceous materials and to the manufacture of briquettes
IPC: C10L5/08
Filed: 1928-08-28
Abstract: 319,895. Nielsen, H., and Laing, B. Aug. 28, 1928. Coking processes. - A two stage distillation process in which briquettes are obtained, comprises mixing a coking coal with a non-coking carbonaceous material in powdered form, heating to from 350‹ to 400‹ C. until in a plastic state when the charge is formed into briquettes, and finally distilling the briquettes at a higher temperature (from 850‹ to 1000‹ C.). Suitable non-coking materials are coking coal which has been subjected to heat treatment with gases containing oxygen as described in Specifications 276,407, 287,037, or 287,381, raw non-coking coal or coke breeze or mixtures of raw non-coking coal and preheated coal. In an example, Durham slack is mixed with 30 per cent of the non-coking fuel.
Patent GB-1324046-A (GB)
Title: Light-sensitive silver halide photographic material
IPC: C07D257/04
Filed: 1971-04-19
Abstract: 1324046 Light-sensitive silver halide photographic material KONISHIROKU PHOTO INDUSTRY CO Ltd 19 April 1971 [20 March 1970] 24745/71 Heading G2C A photographic element comprising a support carrying a layer of a light sensitive silver halide emulsion, contain in a layer or layers thereof (A) at least one compound of the formula:- wherein R 1  is 1-5C alkyl or sulphoalkyl, hydroxyalkyl, or alkoxycarbonylalkyl the alkyl portions having 1-5C or phenylcarbonylmethyl; R 2  is alkyl or alkenyl each having 1-5C or sulphoalkyl, hydroxyalkyl, carboxyalkyl, alkoxycarbonylalkyl, acyloxyalkyl, phenyl or sulpho- or carboxysubstituted phenyl; Z 1  forms with N-(CH=CH) n -C a 5-or-6-membered ring; Z 2  forms with C-CO-N a 5-membered ring; and n is 0 or 1; and (B) at least one compound of the formula:- wherein R 4  and each of R 5  and R 6  are H, alkyl, alkenyl, aryl or aralkyl. The element may additionally contain a spectrally sensitising dye in at least one silver halide emulsion layer. The compound of the above general formulae may be present in a coupler containing layer. Many examples of these compounds are given. These elements produce colour images having low graininess.
Patent GB-1184516-A (GB)
Title: Improvements in or relating to Time-Division Multiplex Communications Systems.
IPC: H04J3/10
Filed: 1968-05-24
Abstract: 1,184,516. Automatic exchange systems. SIEMENS A.G. 24 May, 1968 [26 May, 1967 (2)], No. 24803/68. Heading H4K. More time slots are provided on subscribers' group highways than on intermediate highways, intermediate storage being employed to work a connection over the highways in tandem. With a multiplex frame of 100 Ás common to all highways, 100 time slots of 0À5 Ás with 0À5 Ás spacing are provided on the subscribers' group highways, while only 20 time slots of 0À5 Ás with 4À5 Ás spacing are provided on intermediate highways. Highway gates may use resonant transfer.
Patent GB-1210649-A (GB)
Title: Improvements in or relating to teaching machines
Inventor: BELL KARL WALTER
IPC: G09B5/04
Filed: 1969-05-15
Abstract: 1,210,649. Recording and playback. K. W. BELL. 15 May, 1969 [15 May, 1968], No. 24886/69. Heading G5R. A teaching machine comprises a master magnetic tape playback apparatus and a practice magnetic tape recording and playback apparatus with common controls so arranged that when one apparatus is recording or playing back the other is rewinding or stationary. As shown, two cassette-type tape recorders have their separate sets of controls 40 to 44 and 45 to 49 respectively and also a common set of controls 30 to 37 which produce chosen combinations of conditions in the two recorders. The recorders may be set to perform a sequence of operations under the control of marks (magnetic, mechanical or optical) on the tapes. The master tape may carry two or more lines of text.