baber/WOPTO huggingface dataset:
Patent GB-723577-A (GB)
Title: Improvements in and relating to gear case for cycles
IPC: B62J13/04
Filed: 1952-06-30
Abstract: 723,577. Cycle gear-cases. GERVEN, G. W. VAN. June 30, 1952 [June 30, 1951 ; Feb. 15, 1952], No. 16406/52. Class 136(1). In a gear case for cycles having a cover 8 of flexible material partially or completely divided longitudinally so as to present two open edges, these edges being provided with seams through which are passed cover stretching wires 4 lying in a concave channel formed by a rigid rim 1 of the gear case, the wires 4 being tensioned by an element 7 mounted on the cover, the tensioning element 7 consists of a double bent tension spring 9 of resilient wire provided at each end with a hook 9b for engaging hooks 14 on the ends of the cover stretching wires 4, the spring 9 being pivotally mounted at 12 on a lever 18 which at one end is provided with a pivot pin 19 adapted to engage a fixed hook 5 and which by rotation about the pin 19 is brought into tensioning position. The wires 4 are led through a seam provided in a radial gap closure flap 15 which is drawn into closed position when the wires are put under tension.
Patent GB-111160-A (GB)
Title: Improvements in Machines for Breaking Metal Bars.
IPC: B23D31/00
Filed: 1916-11-16
Abstract: 111,160. South Durham Steel & Iron Co., Crowe, E., and Rees, J. Nov. 16, 1916. Breaking.-Rolled or forged bars, billets, &c., suitable for the manufacture of shells, are broken into suitable lengths without turning the bar after initially notching and bending it. The bar d, Fig. 3, is placed between opposed pairs of plungers e, and opposed pairs of supports h. One plunger e carries a knife-edge p, and the other a plain breaking-block q. The plunger carrying the knife-edge p is first advanced to notch and bends the bar, and then the plunger carrying the block q is advanced to break it. The plungers move in guides f, Fig. 2, and are actuated by eccentrics k on a shaft j which is provided with weighted levers acted upon by vertically-acting hydraulic rams m.
Patent GB-769543-A (GB)
Title: Improvements in or relating to electrical servo and feedback automatic control circuit arrangements
Inventor: BRANDON PERCY SAMUEL
IPC: G01S7/282
Filed: 1953-06-15
Abstract: 769,543. Automatic frequency or other control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BUCKINGHAM, J. May 20, 1954 [June 15, 1953], No. 16467/53. Class 38 (4). In a closed loop system comprising a control unit C1 such as a D.C. amplifier, a mechanical or electronic switch SW2 intermittently disconnects it from the main loop and connects it in an auxiliary closed loop AL so that in the absence of any output from the main loop error detector E, the output of the control unit is made equal to a predetermined value determined by a reference D.C. voltage REF2 applied to the auxiliary loop. To this end a switch SW1 ganged with the switch SW2 disconnects the controlled body, e.g. an oscillator K, from the error detector E during closure of the auxiliary loop, or the oscillator is then switched off. Memory circuits M1, M2 may be included in the main and auxiliary loops. If the frequency of switch SW2 is high, e.g. 2¢ kc/s., spurious signals such as mains hum will be eliminated from the main loop. The main loop error detector reference may be a cavity resonator tuned to the frequency FO of the controlled oscillator K or a waveguide magic T arrangement as described in Specification 769,542 having a modulating oscillator and providing an output of the modulating oscillator frequency of phase sense and amplitude depending on the frequency error of oscillator K which is then demodulated in a phase-sensitive rectifier forming part of the control unit C1 to detect A.F.C. voltage. Similarly, in the auxiliary loop, the D.C. output of the control unit C1 may be compared with a D.C. reference voltage REF2 in a balanced modulator to which oscillations from the modulating oscillator are applied, and the phase sense and magnitude of the D.C. error determined by beating, in the said phase-sensitive rectifier, of the control unit C1, the balance modulator output and modulating oscillations. The phasesensitive rectifier may be a double triode valve with such input applied to a control grid, and both anodes coupled to a common anode circuit tuned to the input frequency, and coupled to a diode detector. The latter may feed a pentode on pentode Miller integrator memory and D.C. amplifier circuit, and the amplified anode output of the lower integrating valve may be derived through a cathode follower.
Patent GB-353603-A (GB)
Title: Improvements in high tension air break electric switches
IPC: H01H31/28
Filed: 1930-05-28
Abstract: 353,603. Air-break switches. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Koppitz, C. G. ; of Railway & Industrial Engineering Co., Greens burg, Pennsylvania, U.S.A.)- May 28, 1930, No. 16480. Convention date, May 29, 1929. [Class 38 (v).] High-tension air-break switches designed to have high contact pressure between a flattened contact head and a U-shaped jaw both carried by separately pivoted arms supported about spaced parallel axes have the flattened contact head so shaped that when it is introduced into the jaw prior to the final movement of said arms the contact head is inclined to the basal and medial planes of the U-shaped jaw, so that the final movement of the arms rotates the flattened element within the jaw so wedging it firmly therein. As shown in Fig. 1, the U-shaped jaw comprises a rigid arm 10 of soft metal such as copper and a springy arm 11 of hard metal such as chromium-plated steel between which the flattened contact head 11 is adapted to engage the jaw and flattened contact being carried by arms 8, 9 pivoted at 13 to plates 6 attached to rigidly mounted insulators 3. The switch arms are operated through rotatable insulators 2 pivotally mounted on the support 1, the operating force being applied to a crank 17 on the left-hand insulator and transmitted to the right-hand insulator through cranks 18 joined by a link 19. The upper ends of the insulators 2 carry crank arms 14 joined to the switch arms 8, 9 through links 15 having universal bearings 16 at either end. During the switch-closing movement, Fig. 4, the flattened contact head enters the U-shaped jaw as shown in dotted lines so that the final closing movement rotates the head within the jaw so wedging it firmly therein. The contact head is formed of phosphor bronze or similar metal the relative rotation of the head within the jaw producing a self-cleaning action between the contacts. The switch may be modified, Figs. 6 and 7 (not shown), for movement of the contact arms in a horizontal plane.
Patent GB-968627-A (GB)
Title: Improvements in or relating to stabilization of polymers
IPC: C08K5/13
Filed: 1962-04-30
Abstract: Polymers of olefins of at least three carbon atoms are stabilized with an alkylphenyl salicylate (e.g. n-octylphenyl salicylate) + a phenolic compound selected from 2,4,6-trialkylphenols, alkylidene-bis (alkylphenols), 2 (21-hydroxyphenyl)-2,4,4-polyalkyl chromans, 4 (21-hydroxyphenyl)-2,2,4-polyalkylchromans, and adducts of alkylphenols with terpenes.  Polymers specified are those of propylene, butene, pentene, 3-methylbutene and 4-methylpentene. Optional ingredients are solvents (benzene, hexane), pigments (Monastral Blue, cadmium sulphide), calcium stearate and dilauryl thiodipropionate.
Patent GB-743805-A (GB)
Title: Improvements relating to the braking of mine winders, hoists and the like
Inventor: GREAVES REGINALD DOUGLAS
IPC: B66D5/26
Filed: 1953-06-16
Abstract: 743,805. Winding mechanism. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 26, 1954 [June 16, 1953], No. 16596/53. Class 103 (1). In a braking system for mine winders, hoists and like equipment of the type described in Specification 743,804, the lost-motion connection between the slotted link rod 23 and the intermediate lever 19 may be adjusted either manually or automatically to take account of brake wear so that there is no decrease in the amount of lost motion when such wear occurs.
Patent GB-1109487-A (GB)
Title: A rotary-piston internal combustion engine
IPC: F02B55/10
Filed: 1968-04-20
Abstract: 1,109,487. Rotary-piston internal combustion engines. YANMAR DIESEL ENGINE CO. Ltd. April 20, 1965 [April 22, 1964], No.16606/65. Heading F1F. In a Wankel type rotary-piston I.C. engine, the centre housing and the housings on either side thereof are each divided by partitions to separate the cold zones, i.e., the zones in which suction of the gaseous mixture occurs from the hot zones, i.e., the zones in which the gaseous mixture is ignited and expanded. Cooling water admitted through an inlet 2, Fig. 1, in the centre housing 1, passes partly through the hot zone A in the centre housing and partly through passages 10 into the hot zones C of the side housings 13, 14, and thence finally leaves the housings through an outlet 11 in the centre housing surrounding the exhaust port of the engine. Oil, generally lubricant that has been previously used to cool the piston enters the side housing 13 through an inlet 20 circulates between fins 13' in zone D, passes through a port 21' into zone B in the centre housing 1 and then passes through a port 22 into the side housing 14. The oil then passes between fins 13' in zone D in the side housing 14 and finally leaves that housing through an outlet 23. The oil in passing through the zones D and B gives up some of its heat to warm the housings in the region of cold zones which with the cooling of the hot zones by the cooling water keeps the housings as a whole at a more uniform temperature. At the same time the oil heating the cold zones warms the gaseous mixture admitted through the inlet port of the engine to improve combustion efficiency.
Patent GB-462741-A (GB)
Title: Improvements in moulded products and method of making the same
IPC: C08K3/20
Filed: 1935-06-07
Abstract: 462,741. Fibrous compositions; hardening stone; moulding machines. BERGHOFF, J. June 7, 1935, No. 16645. Void. Convention date, April 30. [Classes 22, 70, and 87 (ii)] [Also in Group VIII] The Specification which does not permit of satisfactory abridgment appears to relate to the production of moulded articles such as seats, railway sleepers and boxes from fibrous cellulose material such as grass, straw, esparto, cellulose waste, pulp waste, moss litter or mixtures thereof with or without other fibrous material. The fibrous material is ground with milk of lime, preferably heated, and about 5 per cent resin and about 8 per cent alum is added, with or without waterglass, the mixture may then be treated with carbon dioxide. The resulting pulp is washed, felted and moulded under pressure in the cold. The moulded articles are dried and hardened by placing them between perforated plates under pressure and treated with carbon dioxide gases at 100- 300‹ C. The articles may be further strengthened and fireproofed by coating or impregnating with a solution of a soluble silicate, e.g. water glass and again treating with carbon dioxide gases at a raised temperature. Seats may be moulded in the apparatus shown in Fig. 2, which comprises a plunger 19 fitting in a frame 16 mounted on a funnel 14 having wire netting 15 extending over the mouth thereof, the plunger may be provided on its lower side with felt 20 ; the water is removed by gravity or by suction.
Patent GB-291769-A (GB)
Title: Improvements in and relating to paper-insulated, multipleconductor, electric cables for carrying large currents
IPC: H01B7/18
Filed: 1928-06-08
Abstract: 291,769. Kabelwerk Duisburg, (Assignees of Paetsch, 0.). June 8, 1927, [Convention date]. Cables, arrangement and disposition of parts of.-The cores of paper - insulated multiple - conductor c a b 1 e s for large currents are stranded together with filling, false cores etc., so that when a small change in the cable length occurs through subsidence, the cable cores are adapted to contract towards the cable centre, or are pressed outwards towards the lead sheathing. In the embodiment shown in Fig. 1, conductors a wound with paper insulation bare stranded together with a filling c so that the cable cores do not touch each other or the cable covering. In the form shown in Fig. 2, the cable cores are wound with tubular compressible threads c, the cores being then stranded in contact with each other and filling inserted in the free spaces. As shown in Fig. 3, wedge-shaped false cores c may be inserted between the cable cores and a compressible filling d which surrounds the cable inside the lead sheathing. The space between the cable cores is also filled.
Patent GB-333330-A (GB)
Title: Improvements in telephone systems
IPC: H04M1/274
Filed: 1929-05-30
Abstract: 333,330. Keene, F. J. May 30, 1929. Automatic and semi-automatic exchange systems.-Impulse transmitting arrangements for telephone systems more particularly to provide certain subscribers with special facilities by which the numbers of frequently wanted subscribers may be transmitted by a single selecting operation such as the depression of a key, comprise, a step-by-step switch operated to transmit the requisite number of impulses according to the marking of the switch by a plurality of selectively operated relays. The Figure shows a subscriber's substation comprising, in addition to the usual microphones M, receiver R, bell B, dial impulse springs IS and dial off-normal springs ON, keys 11-15, 21-25 and their associated relays U1 - - U4, T1 which in cooperation with a stepping switch are adapted to transmit subscribers numbers 11 - - 15, 21 - - 25. Depression of a key e.g. 25 energized relay T1 common to the keys 21 - - 25 and relay U1 which is individual to keys 25, 15. Relay U1 energizes stepping relay ST which operates the stepping magnet DM of the switch. Magnet DM de-energizes relay ST which de-emeregizes the magnet DM to step the switch one step. Stepping is continued over a circuit made operative by the wiper P1 until the wipers return to normal. During stepping wiper P3 transmits impulses over the leads a, b according to the selective energization of the relays T1, U1 - - U4. The relays T1, U1 corresponding to the key 25 open the circuits to the contacts y, p of the wiper P3 so that during rotation of the wiper the circuit to the multiple lead M is opened at contacts x, y, p - - z, to transmit a corresponding number of impulses over the leads a, b separated by a pause introduced by rotation over the contacts between the two groups. Operation of key 11 leaves the relays inoperative but impulses are transmitted in positions x, z. Depression of a key in the group 12 - - 15 operates the corresponding relay in the group U1 - - U4 to unmask the corresponding contact p - - s, relay T1 remaining de-energized. During movement of the switch the subscriber's instruments are short-circuited over wiper P2. When the switch returns to normal the selected relays, which during stepping of the switch are held locked over wiper P1, are restored.
Patent GB-603586-A (GB)
Title: Multiplex radio signalling system
IPC: H04B14/00
Filed: 1945-07-02
Abstract: 603,586. Multiplex radio signalling. FINCH, W. H. July 2; 1945, No. 16753. Convention date, Dec. 30, 1944. [Class 40 (v)] A signalling system comprises means for generating a frequency modulated signal having a predetermined frequency swing, and means for generating picture modulated signals operating within the guard bands provided between the frequency - modulated signnal and the next frequency-modulated signal channel. The channel allotted to an F.M. transmission, Fig. 1, has a centre carrier, the swing of the F.M, wave about the carrier being represented as a zig-zag line. A guard band is provided on either side of the band occupied by the F.M. signals, and two facsimile channels are provided at the extreme edges of the allotted channel. In a modification, the frequency swing of F.M. wave is reduced, enabling guard bands to be provided between the facsimile channels and the edges of the allotted channel. The centre carrier frequency is provided by master oscillator 10, Fig. 4, and fed through amplifier 11 to a modulator 12, which is supplied with audio signals, and via amplifier 14 to the aerial system as a frequency modulated transmission. Part of the output of master oscillator 1.0 is combined with the output of side-channel oscillator 16 in a mixer 15 to give the carrier frequencies for the facsimile channels. The lower side channel carrier frequency is separated in filter 17, and fed through phase-shifter 19 to modulator 20, which is supplied with facsimile signals from scanner-amplifier 23, which is similar to that described in U.S.A. Specification 2,047,863. The ouput of modulator 20 is fed to mixer 21 and via amplifier 27 to the antenna system to give a facsimile channel using single side-band transmission, the lower side-band only being transmitted. Similarly, the upper side channel carrier is separated in filter 15, and fed through phase-shifter 24, modulator 25, mixer 26 and amplifier 27 to the antenna system to give a single side-band facsimile transmission, using the upper side band only. In a modification, double side-band facsimile signals are sent in the lower side-channel, while the upper side-channel is used to send synchronising signals for the facsimile transmission The master oscillator and side channel oscillator may be crystal controlled, the spacing of the side channels depending on the frequency of the latter. The facsimile transmission 'may use amplitude or frequency modulation. In another embodiment, the carrier frequency is displaced from the centre of the allotted channel, and one facsimile channel is provided, spaced from the edge of the allotted channel and from the F.M. transmission by suitable guard bands.
Patent GB-1454695-A (GB)
Title: Packaging containers apparatus for securing a wiper arm
IPC: B65D5/40
Filed: 1974-04-17
Abstract: 1454695 Sealed cartons for fluent materials ZIRISTOR AB 17 April 1974 [24 April 1973] 16756/74 Heading B8P In a packaging container for fluent contents formed from a suitably folded blank of packaging material the top of the container is closed by pressing together the top edges of two opposite end wall panels 4 with the other end wall panels either folded inwardly between them bellows fashion (not shown) or folded outwardly to form lugs 10; sealing together the contacting edges of said wall panels to form a fin extending transversely of said container; and folding the fin down substantially flat against the top of the container, the fin being provided with a tear line 11 whereby one of said bellows- or lugfolded sealed portions may be opened out to form a spout for discharge of the contents of the container. The container may be formed from paper or cardboard coated on both sides with thermoplastics material, and which may also comprise a layer of metal foil and further plastics layers.
Patent GB-258951-A (GB)
Title: Improvements in gun carriages
IPC: F41A23/28
Filed: 1925-07-01
Abstract: 258,951. Watson, W. D. July 1, 1925. Field carriages.-To enable a field gun to be fired from the ground at high angles of elevation, the front part of the trail 6 is lowered to the ground to form a firing platform 11 between the wheels 7, and the gun is trunnioned in brackets 4 which are pivotally connected to the trail and can also be locked to the trail when desired. In the form shown in the high-angle position in Fig. 1 and in the travelling position in Fig. 4 the gun is trunnioned at 3 in the brackets 4 which bear at 10 on the wheel axle 8 and are hinged at 5 between the trail beams 6. The front part of the trail has arcuate slots 9 engaging over the wheel axle and a circular platform 11 trainable with respect to an anchored portion 12. Pin 18 passing through holes in the brackets 4 engage holes 17 in the cheeks of the trail to lock the parts in the position shown in Fig. 1. The gun is so balanced in relation to the trail that, on removing the pins 18 and depressing the muzzle, the platform is raised from the ground until the axle is at the bottom of the slots 9, when the pins 18 are passed through holes 16 in position for firing from the wheels at low angles of elevation. In the intermediate travelling position shown in Fig. 4, the pins 18 are passed through holes 16<1> and the weight of the. gun and trail is then taken by bearing springs 21. In the modification shown in Fig. 5, the gun is trunnioned at 3 in the trail and is linked at 25 to the brackets 4 which are hinged at 5 to the trail and connected to the axle by springs 26. In the position shown, the springs act to balance the weight of the gun about the trunnions during elevation. The cradle has an extension 30 which can be strapped over the pins 5 when the platform is to be raised, the straps 29. 28 confining the axle 8 and the trunnions 3 being then released. This permits of movement to the position shown in Fig. 7 in which the axle is spring borne. The springs 26 may be replaced by semi-elliptic springs if desired.
Patent GB-872928-A (GB)
Title: Improvements relating to the construction of thermionic valves
Inventor: FARROW FREDERIC WILLIAM RODBAR
IPC: H01J19/50
Filed: 1958-05-08
Abstract: 872,928. Thermionic valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 15, 1959 [May 28, 1958], No. 17042/58. Class 39(1). An arrangement for positioning a valve electrode structure in an envelope comprises an insulating disc 7 threaded on a lead-in wire 6 which connects to a wire bridge 3 supporting the electrode structure 1, the disc acting as a stop by abutting against the end of envelope 2. Preferably the disc also abuts against bridge 3. The mica top 4 of the electrode structure may be apertured so that the bridge wires pass through it. If only one aperture is provided the bridge wire is bent so as to form a stop against the mica top through which it passes. The disc stop 7, preferably of mica, may be used as a getter holder. In constructing the valve the structure is placed in a sealing machine and the envelope 2 dropped over it so as to fall as far as disc 7 will allow; the envelope is then sealed. The part of the lead 6 joined to bridge 3 may be of nickel, the part passing through the envelope 2 to a terminal cap may be of borated-copper clad wire.
Patent GB-1281483-A (GB)
Title: Method for preparing corticosteroids
IPC: C12P33/00
Filed: 1970-04-10
Abstract: 1281483 Microbiological 11-hydroxylation of steroid acetonides LARK SpA 10 April 1970 [23 April 1969] 17070/70 Heading C2U Steroids of the formula (wherein X is H, halogen, CH 3 , CN, CF 3  or N(CH 3 ) 2  and the 1,2-position is saturated or unsaturated are converted into the corresponding 11#-ols by the action of micro-organisms of the genus Curvularia or their enzymes, the fermentation being effected in the absence of dimethylsulphoxide. The products can be #<SP>1</SP>-dehydrogenated, e.g. using Arthrobacter simplex, and converted to other known steroids, e.g. 9α - fluoro - 16α - hydroxy - prednisolone 16,17-acetonide is produced via 16α-hydroxyprednisolone 16,17 - acetonide 21 - acetate, #<SP>1,4,9(11)</SP> - pregnatriene - 16α,17α,21 - triol- 3,20 - dione 16,17 - acetonide 21 - acetate, the corresponding 9α - bromo - 11# - hydroxy and 9,11 - epoxy compounds and 9α - -fluoro - 16α- hydroxy - prednisolone 16,17 - acetonide 21- acetate; and 6α,9α - difluoro - 16α - hydroxyhydrocortisone 16,17-acetonide is similarly prepared and is then dehydrogenated as above to the corresponding prednisolone derivative.