baber/WOPTO huggingface dataset:
Patent GB-1065387-A (GB)
Title: Improvements in or relating to 3-desoxy-pregnatriene compounds
IPC: C07J5/00
Filed: 1964-05-21
Abstract: Novel steroids of the formulae <FORM:1065387/C2/1> AND <FORM:1065387/C2/2> (wherein R is hydrogen or a hydrocarbon carboxylic acyl radical of less than 12 carbon atoms which is optionally substituted; X is hydrogen, C1- 8 alkyl, C2- 8 alkenyl or C2- 8 alkynyl; R1 is hydrogen, hydroxy or acyloxy, the acyl group being similar to R; X1 is hydrogen, a - or b -methyl, a -hydroxy or a -acyloxy similar to R1, or X1 together with R1 represents - - - O-C. (A). (B)-O - - - in which A is hydrogen or C1- 6 alkyl and B is C1- 6 alkyl, or aryl or aralkyl of at most 10 carbon atoms, or A and B together represent a cyclic radical; and Y is hydrogen, b -hydroxy or keto) are prepared by the method disclosed in Specification 1,065,386 Dihydroxyacetone side chains are protected by the formation of 17a ,20; 20,21-bismethylenedioxy derivatives.  From compounds containing a 6-hydrocarbon group, mixtures of 6a - and 6b -isomers are obtained, which may be separated by conventional methods.  The 21-unsubstituted products may be converted to the 21-ols by conventional methods via the 21-iodo derivatives and 21-acetoxy compounds.  11-Substituted products are obtained by incubation of 11-unsubstituted products with adrenal glands or by the use of micro-organisms such as Curvularia lunata, or Cunninghamella bainieri or blakesleeana to give the 11b -ols which on oxidation give the 11-ones.  21-Ols may be esterified, and the esters saponified, 16a -hydroxy groups may be introduced by incubation with a culture of Streptomyces roseochromogenus, 16a ,17a -ketals or cyclic acetals may be prepared by standard methods, and 16a -ols may be esterified. The steroids of the invention, which are stated to have anti-androgenic action, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-202656-A (GB)
Title: Improvements in signalling systems
IPC: H04L5/14
Filed: 1923-08-20
Abstract: 202,656. Western Electric Co., Ltd., (Assignees of Buckley, O. E.). Aug. 19, 1922, [Convention date]. Duplex telegraphs; signal shaping at transmitter.-In systems employing a continuously loaded cable, the sending voltage is made as low as possible and signals are compensated for distortion at the sending end. The signalling current is regarded as an alternating current with a number of different frequency components some of which are important in shaping the received signals. Hysteresis losses in the cable are avoided by supplying the cable continuously with an alternating current of a higher amplitude than that of the signals and of a frequency higher than that of any of the components needed for shaping the signal. In the duplex system shown, the transmitter 5 is arranged in series with a resistance 6 and condenser 4 and the whole is shunted by an inductance 8 and resistance 9. This, by emphasising the higher frequency components distorts the signal current in the opposite sense from that in which it is distorted on the cable. An alternating-current generator 7 is connected as shown and may be so designed as to produce no effect at the far end of the cable. A filter 11 designed to pass only such frequencies as are necessary in shaping the signal prevents currents from the source 7 from disturbing the receiving apparatus 10. The cable 1 is continuously loaded with " permalloy " as described in Specification 184,774.
Patent GB-730477-A (GB)
Title: Improvements in or relating to seats, mattresses and the like
Inventor: BISHOP WILLIAM HENRY
IPC: A47C27/18
Filed: 1952-08-22
Abstract: 730,477. Cushions &c. WEATHERSHIELDS, Ltd. July 13, 1953 [Aug. 22, 1962], Neo. 21084/62. Class 52 (4).  A moulded rubber cushion or mattress has a series of grooves 32 in its upper surface which are continued down the ends or sides of the cushion and are at their lower ends in communication with openings 34 in the rigid supporting base 33, and preferably also with the usual interior cavities C. The inner covering layer 36 is wholly or in part of open weave fabric.
Patent GB-722068-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/14
Filed: 1952-08-22
Abstract: 722,068. Piston packing. JONES, R. J. July 7, 1953 [Aug. 22, 1952], No. 21094/52. Class 122 (1). A compound piston-ring comprises an outer part, O, an inner part I and abutment faces I<SP>1</SP>, O<SP>1</SP>, I<SP>2</SP>, O<SP>2</SP> in the vicinity of a split in the part O to restrict expansion of that part. The abutment faces are provided by projections on the part O and oversize slots in the part I to receive the projections, the corners of the clearance faces I<SP>3</SP>, I<SP>4</SP> of the slots and those of the adjacent faces O<SP>3</SP>, O<SP>4</SP> of the projections being bevelled or rounded. Preferably expansion of the part I is also restricted by abutment faces I<SP>5</SP>, O<SP>5</SP>; I<SP>6</SP>, O<SP>6</SP> provided by further slots and projections arranged adjacent the split in the part I which is preferably disposed diametrically opposite that in the part O. The part I may be weakened by four recesses I<SP>7</SP>, I<SP>8</SP>, I<SP>9</SP>, I<SP>10</SP> preferably formed in its outer surface. In a modification, expansion of the inner part is not restricted by abutments adjacent its split and that of the outer part is restricted by oversize slots in the outer part which co-operate with projections on the inner part adjacent the split, the abutment and the clearance faces of the slots and projections being rounded or bevelled. Tapped holes are formed in the outer part to facilitate removal. The rings should preferably be accommodated in the two grooves in the piston nearest to the compression space or spaces and preferably half of the remaining rings should be removed. Under working conditions, the ring, which is of metal or alloy, is intended to bear very lightly in the bore. The proportions of the ring and its clearance in the bore are referred to.
Patent GB-959071-A (GB)
Title: Improvements in or relating to the production of manifold imprinted or typewritten copies
Inventor: WATTS JACK
IPC: B41L5/06
Filed: 1962-05-31
Abstract: 959,071. Typewriters. ALACRA Ltd. May 14, 1963 [May 31, 1962], No. 21095/62. Heading B6F. In a typewriter or tabulator having a set of superposed record webs 20, Fig. 1, with marginal feed holes, which is interleaved with one or more webs of duplicating material 21 without such feed holes (Fig. 3, not shown) whereby the duplicating webs are released at an average rate considerably less than that at which the record webs are fed to the platen 17 by pin wheels 12 and 11 disposed below and above guide plates 15, 16 and 18 disposed on the infeed side of the platen, the record webs are characterized in that at least one of the record webs 20 has at intervals along the edges partially cut out tabs 51, Fig. 2, which pass through aligned holes 50 of another record web of the set to enhance registration of the webs and prevent their bunching or billowing as they pass around the platen. In operation the set of record webs and duplicating webs is assembled over rollers 24 and then advanced by the lower pin wheel 12, Fig. 2, between the flat guide plates 15, 16 whereby a pin 34 engages one of the holes 50 having partially severed tabs 51 to push the corresponding tabs upwardly through the holes in the upper webs. As the webs advance the upstanding tabs are folded over by ends 54 of pin wheel slots in the plate 16. The tabs may be provided either in one web only or in both the upper and lower webs as shown in Fig. 2, when the tabs are alternately displaced upwardly and downwardly as at "C" and " D," respectively. Specifications 886,254, 942,409 and 944,328 are referred to.
Patent GB-378626-A (GB)
Title: Improvements in or connected with the adjustment of self-contained base rangefindersused as height measurers
IPC: G01C3/10
Filed: 1931-07-24
Abstract: 378,626. Range-finders. BARR & STROUD, Ltd. and STRANG, J. M., Caxton Street, Anniesland, Glasgow. July 24, 1931, No. 21137. [Class 97 (i).] In a single observer range-finger in which height or horizontal range is measured directly by relative displacement of the images, and having an additional optical part or parts as described in Specification 131,611 to enable a condition corresponding to infinite distance to be indicated, means are provided for imparting movement to the additional part in such a way that the infinity position is altered, in order to enable the zero of the scale to be adjusted. In Fig. 1 the measuring means consists of a prism P which is rotated relatively to the casing in accordance with the angle of sight and is displaced along the optical axis by the mechanism B to effect the measurement, the prism carrier having an index F co-operating with the scale D. The additional part consists of a prism H which is rotated with the prism P by the pinion 2 but normally does not move along the optical axis. To alter the infinity position the prism H can be displaced along the optical axis by a screw K which can be connected to the screw B by the clutch L. The prisms have equal deviations so that when both are displaced the movement of the index F is not accompanied by any relative movement of the images. The prisms P, H may have different deviations, gearing being in this case provided so that their displacements are properly related. In Fig. 3 the adjustment is obtained by tilting the prism H<2> about an axis 4 at right-angles to the plane of triangulation, the tilt being produced by a projection 7 from a nut 5 which is displaced by the screw 6. The additional part may consist of a parallelsided glass plate inclined to a plane normal to the optical axis. In this case the zero adjustment is effected by varying the inclination of the plate by means similar to those shown in Fig. 3.
Patent GB-886253-A (GB)
Title: Improvements in or relating to electric snap action switches
IPC: H01H13/28
Filed: 1958-07-02
Abstract: 886,253. Press-button retractive switches. BROOKHIRST IGRANIC Ltd. July 2, 1958 [July 2, 1957], No. 21178/58. Class 38 (5). A snap-action switch comprises an actuator plate 50 guided in slots 18 in the base 10 and urged to the position shown in Fig. 1 by a compression spring 54. Fixed contacts 26, 30 are fixed by rivets 28, 32 holding terminals 34, 36 in recesses in the base 10. The movable contact assembly comprises a rigid carrier 38 having a central opening with guiding notches 40 for the plate 50, and knife edges 48 which engage similar notches in guides 64 for compression springs 62, the notches being wide enough to prevent relative lateral rotation. Similar knife edges 60 on the plate 50 engage other guides 64 so that the carrier 38 is floatably mounted. Leaf-spring contact members 42, secured by rivets 44 to the carrier 38, are stressed to bias their ends away from the carrier into engagement with lugs 46, notches in the carrier-ends allowing members 42 to abut flush against the carrier. In operation the spring force exerted by contact members 42 urges the carrier 38 in the opposite direction to the movement of the plate 50, to swing the springs 62 through dead-centre while still maintaining pressure on the fixed contacts. Arcuate movement of the members 42 produces a contact-wiping action. Various modifications of the contact assemblies are described for single-circuit operation and a modification of the movable contact assembly is described in which the lugs 46 are replaced by other means (Figs. 11, 12, 13, not shown).
Patent GB-707764-A (GB)
Title: Gear selecting mechanism
IPC: F16H63/46
Filed: 1951-09-07
Abstract: 707,764.  Controlling change-speed gearing. AUSTIN MOTOR CO., Ltd., and HOLLIDAY, R. P. M. Nov. 11, 1952 [Sept. 7, 1951], No. 21193/51. Class 80 (2) Gear preselection and engaging mechanism, for change-speed gears in automobile transmissions, comprises a latch lever 5 which, in order to effect gear preselection, is placed under load (e.g. by a control lever 9 and pivoted spring 7) to rock about an axis 4 in either of two directions from a neutral position, the latch lever being allowed to rock from the Fig. 1 to the Fig. 2 position by movement of a control device 19, Fig. 5, under the control of the main clutch, the control device then displacing the latch linearly from the Fig. 2 to the Fig. 3 position to establish the change, means, such as a fixed pin 16 in a slot 15, preventing linear motion of the latch before it is rocked. The tail 6a of the latch lever 5 is engaged by a cantilever spring 17 which tends to keep it in the central, or neutral position; the latch lever is connected to a selector rod 1 and a striker fork 2 which are moved to establish the preselected change. The latch lever is prevented from rocking'prior to disengagement of the main clutch by the double cranks 20, 211 of the control device 19 engaging cam surfaces 13, 14, Fig. 1, thereon; depression of the clutch pedal rotates the control device anti-clockwise about an axis 22 to lie against a fixed stop 23 so that the cranks are situated opposite slots 11, 12, Fig. 2, whereby the latch lever is rocked up or down, according to the direction of loading by the preselector spring 7, the slot 15 and the fixed pin 16 thus being positioned to allow linear movement of the latch lever. Release of the clutch pedal then permits a spring, or hydraulic or electric means, to rotate the control device in a clockwise direction and thus slide the latch lever 5 and striker fork 2 to the right, if crank 20 is engaged in slot 11, Fig. 3, or to the left if crank 21 is engaged in slot 12. As shown, the device can only control two ratios, but in practice two or three parallel selector rods 1. and latch levers 5, &c., are provided. In one modification, Fig. 6, not shown, the latch lever is spring-loaded to preselect the desired ratio by a rotatable cam and the pin 16, and slot 15 are replaced by two fixed pins engaging suitably shaped surfaces on the upper and lower sides of the lever, and in another modification, Fig. 7. also not shown, the latch lever is moved linearly by engagement with one or other parts of a double rack driven by a single pinion. A lock may be provided to prevent full engagement of the clutch before the selected gear has been engaged.
Patent GB-1381072-A (GB)
Title: 3-amino-as-triazino-6,5-quinoline and derivatives
IPC: A61P29/00
Filed: 1973-05-04
Abstract: 1381072 3 - Amino - as - triazine[6,5c]- quinolines EGYT GYOGYSZERVEGYESZETI GYAR 4 May 1973 [5 May 1972] 21252/73 Heading C2C Novel 3-amino-as-triazino[6,5c)quinoline is obtained by oxidation of the novel 3-amino-1,2- dihydro-as-triazino-[6,5c]-quinoline obtained by reduction of its novel N-oxide obtained by cyclization of 4-guanidino-3-nitroquinoline. 4-Guanidino-3-nitroquinoline is prepared by reacting guanidine with 4-chloro-3-nitroquinoline and may be converted to its hydrochloride salt. Pharmaceutical compositions having antiinflammatory and antimicrobial activity in conventional forms comprise an above novel compound and a carrier and/or auxiliary substance.
Patent GB-510828-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J61/36
Filed: 1938-07-18
Abstract: 510,828. Uniting metal to vitreous materials by heat. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand- Ges. fur Elektrische Gluhlampen). July 18, 1938, No. 21623. Addition to 499,897. [Class 36] [Also in Group XL] In a high-pressure, mercury-vapour discharge lamp as described in the parent Specification, all the leads to the main and auxiliary electrodes are at one end of the envelope. The main electrodes 5 are carried bv wires 31<1>, 32<1>, attached to plates 31, 32, contacting with the layer leads 3, 11, which are formed as coatings on the quartz tube or rod 4 ; a similar method is used for connecting the layer leads to the supply wires 25, 26.
Patent GB-410357-A (GB)
Title: Process for the production of storable mixtures of lecithin and oil
IPC: A23J7/00
Filed: 1933-07-28
Abstract: A stable preparation of lecithin is prepared by treating a lecithin sludge from soya beans (consisting of lecithin, water, and oil) with glycerin or a strong solution of a sugar in water or glycerin to remove a part of the water.  By centrifugal separation more of the water and some of the oil may be removed.  The glycerin or sugar solution is again concentrated for re-use. Instead of sugar molasses or "capillar syrup" (a hydrolyzed starch) may be employed.
Patent GB-423365-A (GB)
Title: Improvements in or relating to the production of regenerated cellulose in sheet form
IPC: B29D7/00
Filed: 1933-07-29
Abstract: <PICT:0423365/IV/1> <PICT:0423365/IV/2> In a process for producing simultaneously two or more sheets or webs of cellulose or cellulose derivatives from one machine, a plurality of supplies of viscose or cellulose derivative solution delivered in web form are fed simultaneously through the machine for coagulating, washing, desulphurizing, or other treatment, the webs taking different paths while in the same bath but being maintained therein for equal periods of time.  A plurality of viscose or cellulose derivative outlets are provided in the first coagulating bath, and guide rods and/or rollers are also arranged in this bath and in the subsequent treatment baths to guide the films along separate paths of exactly the same length while within the baths.  The separate delivery outlets b, c may be provided in a common pourer in the coagulating bath a, the two webs x, y being maintained separate by a guide roller d<1> until stable films have been formed, which converge on the roller d, separate again, the film y passing over the roller e<1>, and again converge at roller e, the rollers being so arranged that the paths of x and y through the bath are equal.  Conveying rollers i lead the two films to the subsequent treating baths.  If desired, separate nozzles b, c may be provided as shown in Fig. 4, an extra guide roller h being arranged to ensure that the paths of the films x, y are of equal length.
Patent GB-878605-A (GB)
Title: A method of reducing the effects of interruption in carrier circuits
Inventor: SIMMONDS ERNEST SIDNEY
IPC: H04J1/14
Filed: 1960-06-17
Abstract: 878,605. Voice-frequency signalling. STANDARD TELEPHONES & CABLES Ltd. June 17, 1960, No. 21372/60. Class 40 (4). In a single or multi-channel system in which each channel employs VF signalling and a common pilot frequency is also transmitted, line interruptions of short duration are prevented from affecting the associated exchange equipment whereas an interruption of longer duration results in the release of any exchange equipment already seized. In Fig. 1, an " outband " signalling tone of 3825 c/s. is transmitted during the idle condition and a common pilot frequency of 104.08 kc/s. is transmitted continuously, relays RB, RC being maintained inoperative by the pilot detector DET and relay RA being energized over the tone contact of the signal receiver REC. An interruption of signalling tone gives a calling signal over line LE and relay RA falls back slowly. A break in the line has the same effect, but before the exchange relay has time to respond, its circuit is opened by the operation of RB which also makes a holding circuit for RA. If the break is of sufficient duration, say 10 or 20 seconds, RC also operates and releases RA. If a break in the line occurs after the signalling tone has been interrupted, RA is back and the operation of RB maintains the calling condition, unless the break is of sufficient duration to operate RC when the calling circuit is opened to release the exchange equipment. Rectifiers MR2, MR3 serve to isolate the channels from one another. In another arrangement, Fig. 2 (not shown), the signalling tone is transmitted during the busy condition. Instead of " outband " VF signalling, the system may employ 2-frequency " inband " signalling.
Patent GB-685828-A (GB)
Title: Improvements in or relating to electric circuit interrupters having disconnect contacts
Inventor: LEEDS WINTHROP MOORHEAD
IPC: H01H33/12
Filed: 1951-09-12
Abstract: 685,828. Oil-break switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 12, 1951,No.21463/51. Class 38 (v) A circuit-breaker comprises two serially-connected, resistance-shunted interrupting assemblies 12 mounted on an insulating pedestal 13 arranged in an oil tank 1, from the cover 4 of which extend two bushings 5, 6 having disconnect contacts 7, 8 co-operating with movable disconnect contacts 9, 10 mounted on the assemblies, the contacts in the assemblies being opened before the contacts 9, 10. Each assembly 12 may be similar to that of Specification 571,091 and comprises a fixed contact 16, a movable intermediate contact 17 and a movable interrupting contact 20 having a piston 21 movable in, and electrically connected to, a cylinder 23 secured to a metal support 14 on the pedestal. The support 14 has a cylinder 27 containing a piston 28 having an operating rod 31, downward movement of which moves oil into cylinders 23 to lower contacts 20 against the action of springs 22. The contacts 17 follow until arrested by the engagement of flanges 18 with plates 41, thereby separating contacts 16, 17 to form an arc 40 which produces an oil blast across the arc 42 formed between contacts 17, 20. Eventually, and preferably after arc-extinction, a stop 32 on the rod 31 moves a sleeve 34 down to open the contacts 9, 10 through links 37, 39. When interrupting highcurrents, the arc-produced pressure is sufficient to hold a valve 48 closed until the pressure subsides, but with low currents, the valve opens and the blast produced by piston 28 assists arc-extinction. When the pressure in the assemblies subsides, the valve 48 opens and springs 22 reclose the contacts 16, 17, 20, the contacts 9, 10 remaining open until the sleeve 34 is moved upwards again by reverse movement of rod 31. The application to the assemblies 12 of the blast produced by piston 28 may be delayed until the piston 21 opens an aperture 52 in the wall of cylinder 23, Fig. 2. The assemblies may be arranged horizontally with their axes in line Figs. 3 and 4, (not shown), or with their axes parallel, the two assemblies overlapping to a certain extent, Figs. 5 and 6 (not shown).
Patent GB-1210544-A (GB)
Title: Improvements in or relating to garments
Inventor: BAYNES KEITH WILLIAM
IPC: A41B11/14
Filed: 1968-05-07
Abstract: 1,210,544. Tights. K. W. BAYNES. 7 May, 1968, No. 21469/68. Heading A3V. A garment comprises a body portion 12, one integral stocking portion 11 to cover one leg of the wearer, and an opening 16 for the other leg 15 of the wearer. Two of these garments 10 may be superposed so that they form a pair of tights. The garment may be made of cotton, jersey wool, rayon, nylon or other polyester or polyamide material in a non-run mesh and may be knitted on a circular knitting machine or made from cut and seamed knitted fabric. Alternatively the stocking portion may be formed from a straight bar knitting machine.