baber/WOPTO huggingface dataset:
Patent GB-515940-A (GB)
Title: Frequency modulation system
IPC: H03C3/14
Filed: 1938-06-10
Abstract: 515,940. Frequency modulation. STANDARD TELEPHONES & CABLES. Ltd. June 10, 1938, No. 17323. Convention date, July 9, 1937. [Class 40 (v)] [Also in Groups XXXV and XXXVI] Relates to frequency-modulating systems of the kind in which the frequency of an oscillator is controlled by a thermionic reactance, and comprises means for increasing the degree of modulation, and its linearity, and for preventing undesired amplitude-variations. As shown the oscillator 1 has a parallel frequency-determining circuit comprising capacity 5 and inductances 2<1>, 31 joined by a resistor 17 arranged in the anode branch. The grids of the " reactance " valves 26, 36 are connected through condensers 25, 35 respectively to the resistance 17, and also in push-pull to the modulation transformer secondaries 46, 47, while their anodes are connected to the outer ends of inductances 2<1>, 31. Owing to the parallel connection across the resistance 17, the reactance of the valve 26 appears positive to the main oscillator circuit, whilst that of the valve 36 appears negative, so that frequency-variations cancel out, except those impressed by the modulating coils 46, 47, which are additive. Capacities 22, 32 are included in the cathode circuits of valves 26, 36 to reduce amplitude modulation, and are shunted by chokes to provide a D.C. connection. The mean frequency of the oscillator 1 is stabilized by error-detector circuits 44, 45 tuned above and below the desired mean frequency, and feeding detectors 42, 43, the D.C. voltage output of which is applied to the grids of the valves 26, 36 respectively, for frequency correction.
Patent GB-120639-A (GB)
Title: Improvements in Lubricating Loose Pulleys.
Inventor: IZARD DON ARNALDO
IPC: F16N7/22
Filed: 1917-11-24
Abstract: 120,639. Izard, D. A. Nov. 24, 1917. Lubricant conveyed by mechanical means.- The hub of a loose pulley 3, Fig. 1, runs on a shaft 1 within a fixed bearing 5, which may be of the kind described in Specification 108,730, [Class 12 (i), Bearings &c.], supported on a bracket 6. Oil is raised from a well 21 by a ring or chain 30 and passes through holes 8 in the hub 4 to the shaft. The escape of oil is prevented by grooves 9, 17 in the hub and shaft, which throw the oil on to conical surfaces 18, 15, whence it returns to the well. The hub fits closely against the shaft at 11, 16. If the shaft is stationary the hub 4 revolves between two fixed bearings and both its surfaces are lubricated. When the belt is on the fast pulley 2 so that the shaft rotates, the pulley 3 will rotate only if the inner surface of the hub is insufficiently lubricated, and as soon as enough oil has been raised by the ring 30 rotation of the hub 4 ceases. Fig. 4 shows a modification in which a single pulley 3' is adapted to be connected to a shaft by a clutch 22. Oil is raised by a rigid flange 25 on the hub 4. The hub passes pompletely through the bearing and is provided with grooves 9 at both ends. The grooves on the shaft are replaced by grooves 24 on the inner surface of the hub.
Patent GB-460657-A (GB)
Title: Improvements in filters
Filed: 1936-06-02
Abstract: 460,657. Filters. YUILLE, J. June 2, 1936, No. 17579 /35. [Class 46] Filter elements each comprising a pad 1 of metallic wool in a foraminous envelope 4 are supported one above the other on ledges in a tank 2. Downwardly converging deflectors 6 are attached to the wall of the tank. Liquid under treatment is supplied by a spray pipe 3. The metallic wool may be chemically reactive with the liquid or act as a catalyst.
Patent GB-613241-A (GB)
Title: Impedance-matching arrangement
IPC: H01P5/02
Filed: 1946-06-12
Abstract: 613,241. Impedance transformers; aerials. HAZELTINE CORPORATION. June 12, 1946, No. 17612. Convention date, June 19, 1945. [Class 40 (viii)] [Also in Group XL (c)] An impedance matching arrangement connecting two parts of a signal transmitting path having different dielectric constants and magnetic permeability, comprises two sections differing in dielectric constant and magnetic susceptibility, one transforming the impedance of one part into a complex impedance having an absolute value equal to the geometric mean of the two parts, and the other transforming this impedance into its conjugate. The arrangement may be applied to a coaxial line, the parts c-c to b-b and b-b to a-a being the two transformer sections. The shaded parts of the line have solid dielectric and the remainder is air filled. The arrangement in Fig. 3 shows a two-part impedance transformer of this type on each side of a dielectric prism to deflect waves round the corner of a wave-guide. In Fig. 4, the transformer principle is applied to each side of a dielectric hood 41 over a shortwave aerial 30.
Patent GB-333677-A (GB)
Title: Improvements in machines for applying a layer of plastic material to articles, such as blscuits
IPC: A21C15/02
Filed: 1929-06-08
Abstract: 333,677. Vicars, Ltd., T. & T., and Tunstall, H. H. June 8, 1929. Feeding articles from hoppers and shoots.-In a machine for applying cream or icing to biscuits, the biscuits are withdrawn from a stack in a magazine by a rotary pocketed drum. As shown in Fig. 1, the biscuits are stacked in the magazine A beneath which revolves a drum 10 having recesses in its periphery, the recesses being shaped somewhat like the teeth of a ratchet wheel so that the biscuits slide gently to the bottom of the recesses without shock. The biscuits are kept within the recesses by a belt 33 which partially encircles the drum and is trained over pulleys 34 - - 37. Covering biscuits are delivered from a hopper 48 by a rotary drum 11 having openings in its periphery. The biscuits are held back by a curved plate 47 which may be stationary but, as shown, is mounted on a swinging arm actuated by a rod 42 which has a roller 41 engaging with a stepped cam 40 on the shaft of the drum 10. The return motion of the plate 47 is effected by a spring.
Patent GB-613504-A (GB)
Title: Improvements in automatic firearms
IPC: F41A19/33
Filed: 1943-01-27
Abstract: 613,504. Automatic' firearms. REISING, E. G. Jan. 27, 1943, No. 1-7657/48. Divided out of 604,348. Drawings to Specification. [Class 119] The sliding breech-block of an automatic firearm is tilted by an action bar, when in the breech closing- position into engagement with a bevelled shoulder of the fixed casing, such engagement by frictionalaction serving, todelay or retard the rearward movement of the breech-block. Further, a reciprocating firing hammer is arranged to co-operate with a firing pin in the breech-block its aperture being large enough to receive the firing pin, and the arrangement being such that firing occurs only when the breech-block is tilted, thus bringing the pin and aperture out of alignment. The gun described and illustrated is the same as that described in Specification 604,348.
Patent GB-582837-A (GB)
Title: Ventilated corsets
IPC: A41C1/00
Filed: 1944-09-15
Abstract: 582,837. Corsets. AMYOT, P. Sept. 15, 1944, No. 17692. [Class 141] A ventilating panel for corsets of the kind described in Specification 187,524, [Class 141], consists of a vertical strip with integral spaced tabs extending horizontally. Fig 3 shows the panel as cut preferably by a die. The panel preferably consists of a laminated strip, Fig. 2, consisting of a facing 9 and lining 12 glued together. The outer edges of the tabs 11 are sewn to the spaced vertical edges of the back corset sections 6 on the inside. The ends of the tab are concealed by binding strips 14 reinforced by stiffening bones 15. The facing strip may be of fabric stiffened by horizontal cords of the kind described in Specification 449,858, [Group IX].
Patent GB-180580-A (GB)
Title: Improvements in and relating to dove tail joints
IPC: E04B1/61
Filed: 1921-06-29
Abstract: 180,580. Baba, K. June 29, 1921. Joints, carpenters' &c.-In a dovetail-joint for connecting boards &c., the abutting edges are each formed with a dovetailed projection 1 and with a complementary groove 2, located symmetrically on either side of the centre line. The projection and recess may be contiguous, as shown in Fig. 4; or a part of the normal edge may be left between them, as shown in Fig. 3. The joint may be slanted, as shown in Fig. 5.
Patent GB-145571-A (GB)
IPC: F02C9/16
Filed: 1920-06-29
Abstract: 145,571. Holzwarth, H. Nov. 18, 1918, [Convention date]. Working-fluid supply.-The nozzle valve b of the explosion chamber d of a gas turbine is held closed by oil pressure acting on a piston c, which is secured to the valve and carries a heavy balanced oil-escape valve a adapted by its inertia not to share in the first opening movement of the piston c following an explosion. Each explosion is thereby enabled to open speedily the valve b. A spring c ensures the closing of the valve a.
Patent GB-262350-A (GB)
Title: Garment hanger for use in wardrobes and the like
IPC: A47G25/06
Filed: 1926-07-16
Abstract: 262,350. Northam, W. A. July 16, 1926. Garment racks for wardrobes comprise a liorizontal plate a on the ceiling, a hanging member c pivoted at its top thereto to swing on a vertical axis and horizontal rods d projecting therefrom to carry coat hangers &c. A circular washer e screwed at f on the reduced top of the member c rotates on an annular shoulder a<4> on the plate a. The rods d may be bent from a single length with ends riveted in the member c.
Patent GB-1465958-A (GB)
Title: Flat knitting machines
IPC: D04B7/10
Filed: 1974-04-23
Abstract: 1465958 Knitting machines UNIVERSAL MASCHINENFABRIK DR RUDOLF SCHIEBER KG 23 April 1974 [25 April 1973] 17801/74 Heading D1C This Specification relates essentially to the flat knitting machine described in Specification 1393172 but the claims are concerned with the limit switches and associated permanent magnets for limiting the working width of the machine.
Patent GB-179146-A (GB)
Abstract: 179,146. Walter, R. April 28, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Dry process of refining metals.-In the desulphurization of metals by alkaline earths &c. the latter are transformed into lumps by fusing and casting, granulating, moulding, or briquetting before being added to the metal bath. Reference has been directed by the Comptroller to Specifications 15824/89 and 11709/98, [both in Class 72, Iron &c.].
Patent GB-146458-A (GB)
Title: Heels for boots or shoes
IPC: A43B21/00
Filed: 1920-06-30
Abstract: 146,458. Suberit-Fabrik, Nachfolger R. Messer. July 7, 1919, [Convention date]. Drawings to Specification. Heels.-Heels for boots &c. are made of artificial cork prepared in accordance with the method set forth in Specification 5359/15, [Class 70, India-rubber &c.]. The cork is powdered and mixed with an agglutinant such as a solution of casein, then kneaded, pressed into moulds, and gradually heated to 70 or 80‹ C. This takes 5 to 6 days and a high vacuum is maintained. The agglutinant is hardened by formaldehyde. The heel has a. bottom seat of leather.
Patent GB-1363621-A (GB)
Title: Apparatus for breaking-up large solid masses
IPC: B02C2/10
Filed: 1973-04-13
Abstract: 1363621 Comminuting apparatus HEINRICH KOPPERS GmbH 13 April 1973 [3 May 1972] 18050/73 Heading B2A Comminuting apparatus comprises a ring of stationary cells, 3, Fig. 3, surrounding a rotatable vertical shaft 4, a crushing member 11 fixed to the shaft and having a toothed periphery and an axis of symmetry inclined with respect to the shaft axis, and a drum 13 rotatably mounted on the crushing member, the drum having its axis aligned with the axis of symmetry of the member and having lateral projections 14. The member 11 comprises the plate 10 rotated with the shaft 4 via a plate 7 which is a barrel 8 and ribs 9. The toothed periphery, Fig. 2, is provided on the plate 10. The cylindrical drum 13 is rotatable relative to the member 11 by means of rollers 12. Thus the drum 13 is able to oscillate with its bottom edge, crushing material against the fixed ring. Material dropped into the apparatus is initially broken up as it falls against a sharp edge 20, Fig. 1, which extends across the feed receptacle 1, and also against ribs 22 and 23, Fig. 4 The rotor is reversed every revolution and instantly reversed in the event of jamming.
Patent GB-145754-A (GB)
Title: Improvements in conveyors
IPC: B65G53/48
Filed: 1920-07-02
Abstract: 145,754. Bernert, G., and Bernert, J. Aug. 11, 1915, [Convention date]. Pneumatic conveyers and elevators.-Grain &c. which is to be transferred from a low level to a high level, e.g. from a vehicle to the upper portion of a storage building, by a pneumatic conveyer is delivered to the trunk 3 of the blower 2 by a screw conveyer 9 which is fed through a hopper 7. The blower shaft and conveyer shaft may be geared together.
Patent GB-990106-A (GB)
Title: Tricyclic compounds
IPC: C07C23/28
Filed: 1963-08-13
Abstract: The invention comprises compounds of general formula <FORM:0990106/C2/1> where R1 is hydrogen or alkyl (1-4 C), and R2 is halogen optionally present.  The compounds are prepared by reacting a dibenzo [a, d] cyclohepta [1,4,6] triene-5-one with an allyl magnesium bromide or chloride followed by hydrolysis to yield a 5-hydroxy-5-substituted-compound which is then dehydrated.ALSO:The invention comprises compounds of general formula <FORM:0990106/C4-C5/1> wherein R1 is hydrogen or alkyl (1-4 C), and substituent R2 is absent.  They are prepared by dehydration of corresponding 5-hydroxy-5-alkenyl-compounds.
Patent GB-1376118-A (GB)
Title: Process for manufacture of building board of a hydraulic binding  agent
IPC: B29C67/24
Filed: 1973-04-16
Abstract: 1376118 Moulding with crushed ice and snow; laminates INSTITUTET FOR INNOVATIONSTEKNIK AB 16 April 1973 18275/73 Headings B5A and B5N [Also in Division C1] Building elements are made by pressing a mixture of powdered hydraulic binding agent (cooled to below the melting point of water), and crushed ice and snow, and letting the compressed mixture harden and dry at a temperature above the melting point of water. Calcined or stucco gypsum, or Portland cement are used to produce wallboards. The melting ice or snow particles after pressing leave cavities for a porous element. Heated press surfaces melt surface ice during pressing to form a dense surface layer about a porous core, the thickness of the dense layer being determined by the pressure and time of application. Sound and thermal insulation board coated with adhesive (examples given), is attached to or sandwiched between the gypsum or cement boards during or after pressing. Wood fibre, glass-wool, slagwool, mineral-wool or cellular plastics insulation board is used. Additives to the binder/ice/snow mixture include glass, steel or plastics fibres, urea powder, accelerating and retarding agents, sand, expanded clay, bars, nets, and mixing is carried out in the presence of CO 2  snow, or liquid N 2  or air. Warm additives give dense surrounding areas on pressing.
Patent GB-401413-A (GB)
Title: Compositions particularly suitable for use as shampoos or for washing purposes
IPC: A61K8/26
Filed: 1932-06-29
Abstract: Washing-compositions consist of a sulphonated alcohol or an alkali salt thereof, and Bentonite, "Wilkinite," or equivalent clay.  There may be added an alkaline substance, e.g. borax, disodium hydrogen or other phosphate, sodium carbonate or bicarbonate, a medicament, e.g. menthol, water, glycerine, an emollient, and colouring or recanting materials.  Sodium salts of sulphonated fatty alcohols containing 6 or more carbon atoms are preferred; lauryl, oleyl, and octodecenyl alcohols are specified, and the commercial preparations "Sulphonated Lorol," "Sulphonated Ocenal."  Examples include a shampoo prepared by mixing 3 lb. of Bentonite, 1 lb. of sodium salt of sulphonated lauryl alcohol, and 1 lb. of sodium bicarbonate, and dissolving \ba1/2\be oz. of the mixture in 10 oz. of water.  The preparations may be moulded into tablets or bars or made into pastes.
Patent GB-814125-A (GB)
Title: Improvements in or relating to balloon control rings and balloon control arrangements in textile spinning, twisting or like machines
Inventor: BRACEWELL GEORGE MARSHALL
IPC: D01H1/42
Filed: 1955-06-24
Abstract: 814,125. Balloon control arrangements. TWEEDALES & SMALLEY (1920) Ltd. June 25, 1956 [June 24, 1955], No. 18333/55. Drawings to Specification. Class 120(2) A balloon control ring for textile spinning &c. machines is so shaped that on a radial cross section of the ring, the control surface is a straight line and is inclined to the vertical. so that the upper end of this surface is smaller in diameter than the lower end. Such a ring may be used in conjunction with a second ring having a control surface which on a radial cross-section of the ring is a vertical straight line and the ring may be positioned as indicated in Specification 757,313. An inclined slot may be provided in the ring to facilitate threading-up. Specification 759,068 also is referred to.
Patent GB-771948-A (GB)
Title: Improvements in and relating to heat responsive driving mechanisms
IPC: F03G7/06
Filed: 1955-06-24
Abstract: 771,948. Heat-responsive actuating devices. GENERAL ELECTRIC CO. June 24, 1955 [June 25, 1954], No. 18354/55. Class 10. A heat-responsive actuating device comprises an electrically heated rod, the expansion and contraction of which serves to operate through various levers an electric switch controlling the electric heater supply circuit. The device shown imparts a unidirectional step-by-step movement to a shaft 52 through the intermediary of a ratchet-wheel 40 secured thereon, a pawl 41 and an oscillatable member 15. The device comprises a rod 3 secured within a casing 2 such that its end 10 may move to the right on application of heat via an electric heating coil 7. Mounted within the casing on a common pivot 12 are actuating lever 11 and operating lever 15, both spring biased towards the left. Movement of lever 11 to the right, which occurs on expansion of rod 3, is transmitted to lever 15 through a projection 17 and the latter lever has secured thereto the pawl 41 and a member 39 which embraces an extension 38 secured to one (33) of two electrical contact members 32, 33. A latching lever 21, spring loaded in an upward direction, is pivotally mounted in the casing 2 and comprises a cam surface 27 adapted to engage the lower end 26 of the lever 11, an abutment 28 adapted to engage a shoulder 25 on the lever 15 and an abutment 29 adapted to engage the top end of the contact member extension 38. The amount of expansion of the rod 3 is adjusted by manipulation of a screw 6 whilst a screw 18 controls the amount of movement of the lever 11 to the left. The device shown in Figs. 1 and 3 is in the position after a working stroke of the pawl 41 when the rod 3 has contracted and the latching lever has pulled the contact members 32 and 33 together so switching on the electricity to the coil 7. In the subsequent expansion of the rod, the levers 11, 15, move to the right until the latching lever abutment 28 snaps up to hold the lever 15 at its shoulder 25. This upward movement of the lever 21 disengages abutment 29 from extension 38 thereby allowing the members 32, 33 to spring apart and thus cut the supply to the coil 7. The rod 3 in cooling allows the lever 11 to move to the left its end 26 moving along the cam surface 27 of the lever 21 to thereby depress it. Sufficient depression will cause abutment 28 and shoulder 25 to disengage and allow the the lever 15 to spring to the left such impulse causing the pawl 41 to move by one step the wheel 40. Such depression also causes engagement of abutment 29 and extension 38 and such impulse effects re-engagement of contact members 32, 33, so the heating and subsequent expansion of the rod 3 once again takes place. Control of a motor 54 is effected by the device shown, a cam 51 on the shaft 52 opening the motor circuit after predetermined time intervals.
Patent GB-635152-A (GB)
Title: Improvements in and relating to the manufacture of phenanthridine compounds
IPC: C07D221/12
Filed: 1947-07-11
Abstract: Quaternary salts of 2 : 7-diamino-9-p-aminophenylphenanthridine, which have tryparocidal activity, are manufactured by reduction of the corresponding p-nitro compounds, with or without previous acetylation of the 2 : 7-amino groups and subsequent hydrolysis of the acetamido groups. The starting materials are obtainable by condensation of 2-amino-4 : 41-di-(carbethoxyamino)-diphenyl with p-nitrobenzoyl chloride and conversion of the product into a phenanthridine by treatment with a pentavalent phosphorus compound, followed by quaternization and hydrolysis.  Examples describe the preparation of 2 : 7-diamino-9-p-aminophenyl - 10 - methylphenanthridinium chloride by both of the alternative methods, using as reducing agent a sludge prepared by mixing solutions of ferrous sulphate and barium hydroxide, and the preparation of the starting material.  Specifications 511,353 and 587,673 are referred to.
Patent GB-695962-A (GB)
Title: Improvements relating to electric switchgear of the vertically-withdrawable type
IPC: H02B11/20
Filed: 1950-07-25
Abstract: 695,962. Switchgear structures. REYROLLE & CO., Ltd., A., CHRISTIE, J., and FENTON, W. Oct. 24, 1951 [July 25, 1950], No. 18522/50. Class 38 (v) In vertically-withdrawable switchgear, particularly that of Specification 686,684, the circuit-breaker is raised and lowered by a hydraulic ram carried by a carriage which is movable backwards and forwards horizontally. The breaker A may be raised in any one of six positions, the particular one being preselected by rotation of a handle Q<SP>2</SP> which is fixed to a shaft Q running from front to back of the structure, i.e. from right to left in Fig. 1. The shaft carries six cams Q<SP>1</SP> and in each position of the shaft, a recess in a different cam is opposite a hole P<SP>1</SP> in the frame P so that a bolt N carried by the carriage J can be projected into the hole by a handle N<SP>1</SP>, the other holes P<SP>1</SP> being blocked by the other cams. Upward movement of the bolt also operates through a cable N4 a switch, not shown, controlling a motor by which the ram is operated. Alternatively, the motor and a pump supplying the ram can be disconnected at a clutch until the bolt N is projected. When the breaker has been raised by the ram it is retained by anchors which are interlocked with the breaker control gear so that the breaker can only be closed when the anchors are in holding position.
Patent GB-1018296-A (GB)
Title: Improvements in or relating to shock absorbing devices for loads descending in the atmosphere
IPC: B64D1/14
Filed: 1962-07-14
Abstract: 1,018,296. Parachute apparatus. A. POURCHET. July 14, 1962, No. 18535/62. Heading B7G. A device to slow the descent of a load in the atmosphere comprises a load support 1, a container to hold fluid connected to the support, and means for causing the fluid to be released from the container into the atmosphere when the load is near the ground to form a layer of fluid at superatmospheric pressure between the load and the ground. The device may permit the load to settle on the ground without shock. Fig. 1 shows a parachute load platform 4. A pilot weight 14, on striking the ground, initiates flow of fluid from telescopically extendable nozzles 6, to brake the load, thus enabling the major part of the descent to be at a faster speed. The nozzles are supplied from a source of fluid under pressure, and contacting of the ground by the pilot weight may make an electrical circuit to detonate a cartridge which results in removal of an obstruction between the source and the nozzles (Fig. 4, not shown). In Fig. 2 (not shown) the fluid flow from line 11 is used to entrain ambient air in ejector ducts 10. An ejection seat may be fitted with similar .braking means.