baber/WOPTO huggingface dataset:
Patent GB-916894-A (GB)
Title: Improvements relating to cyclic pitch control mechanisms for rotary wing aircraft
IPC: B64C27/54
Filed: 1960-08-17
Abstract: 916,894. Rotary wing aircraft. UNITED AIRCRAFT CORPORATION. Aug. 17, 1960 [Sept. 30, 1959], No. 28547/60. Class 4. A rotary wing aircraft comprises a rotor head and a plurality of blades each movable as a whole about a pitch change axis, a swash plate connected to the blades, being movable to vary the collective blade pitch and tiltable to impose a sinusoidal cyclic pitch change on the blades, and means forming part of the cyclic pitch control mechanism to superimpose a secondary scheduled cyclic pitch change on the blades so that the resultant cyclic pitch changing movements of the blades contains a second harmonic component. As shown, each blade 22, 24 is connected to a hub 34 on shaft 38 by a pitch change bearing 26, 28 and flapping hinge 30, 32. The rotor may be driven by an engine 40 or by blade tip jets. The non-rotary member of the swash plate 44 comprises inner and outer collars 46, 48, the former being tiltable on a universal joint (not shown) on shaft 38 for conventional once per revolution cyclic pitch change. The universal joint is slidable axially of shaft 38 for collective pitch change. The rotary member 54 of the swash plate is connected to the shaft by scissors linkages 95, 97, and is mounted by bearing means on collar 46. Member 54 has two pairs of lugs 58 (one pair shown) supporting the inner ends of levers 60, 62, the outer ends of which have rollers 64 engaged in a cam track 68 on the inner face of collar 48. Links 74, 76 extend from levers 60, 62 to pitch change horns 80, 82, on the blades. The cam track 68 imposes a twice per revolution, with or without higher multiple frequency, cyclic pitch changes on the sinusiodal once per revolution cyclic pitch changes caused by tilting the swash plate. By this means, the stalling characteristics of the blades in forward flight can be regulated, so that a greater maximum lift can be obtained.
Patent GB-877869-A (GB)
Title: Improvements relating to hydraulic piston apparatus
IPC: B66F3/24
Filed: 1959-08-21
Abstract: 877,869. Hydraulic jacks. TOUSSAINT & HESS HYDRAULISCHE HEBEZEUGFABRIK G.m.b.H. Aug. 21, 1959 [April 24, 1959], No. 28709/59. Class 78 (3). [Also in Group XXIX] Hydraulic apparatus comprises a cylinder 10, Fig. 1, at least two telescopic pistons 14, 20 movable in the cylinder, the outer piston 14 being shaped to form a pair of chambers 17, 18 with the cylinder, one of the chambers being in communication with the interior 21 of the outer piston, and a valve 27 which can be opened to establish communication between the pair of chambers. The cylinder may be supplied with fluid pressure from a pump 28 when a by-pass valve 32 is closed, the fluid entering a space 18 to move the piston 14 upwardly. During the upward movement of the piston, fluid in the chamber 17 passes through ports 22 to the interior 21 of the piston 14 to move the piston 20 relative to the piston 14. When the by-pass valve 32 is opened, the pistons are returned to their inner position and any fluid which has passed the seal 25 of the piston resulting in a higher pressure in the chamber 17 than in the space 18 can then be passed to the space 18 by opening the needle valve 27. In another embodiment having three telescopic cylinders 14, 33, 20, Fig. 3, the spaces 18, 21, 36 between the pistons are interconnected by valves 43, 44 which are positively opened when the pistons are in their inner positions by projections 50, 52. In a further embodiment, the spaces 18, 21 are interconnected by a manually adjustable valve and the spaces 21, 36 by a ball valve.
Patent GB-304394-A (GB)
Title: Improvements in flexible couplings
IPC: F16D3/00
Filed: 1927-10-28
Abstract: 304,394. Kingsmill, H. L. Oct. 28, 1927. Universal joints; linkwork. - A universal or like coupling, allowing axial and lateral displacements and applicable particularly to electric locomotive driving gears, comprises an intermediate member antifrictionally pivoted diametrically on one of the parts to be coupled and connected to the other part through anti-friction thrust members arranged in pairs comprising opposed members on opposite sides of the axial plane passing through said pivotal diameter. In one form, Figs. 1 and 3, the arms C<2> of an H-shaped intermediate member are trunnioned at one end C' in diametrical ball bearings A<3> on the web A of an electric locomotive driving wheel and, at the other end C<3>, are connected to the web B of a motor driven gear wheel through thrust members D. The outer ends D<2> of the thrust members are rounded to roll on hardened steel discs E held in place in the web B by screwed rings E' with lock nuts B', whilst the inner ends D' roll on spherical bosses C<5> formed on discs C' secured on seats C<8> in the arm ends C<3> by screwed sleeves C<6>. The sleeves or rings E<1>, C<6> and a similar ring C' serve as guide or retaining rings for the thrust members D. In a modification (Figs. 4 and 5, not shown), an axially disposed cylindrical intermediate member pivoted at one end on ball or roller bearings carried by diametrical trunnions on one shaft end is, at the other end, provided with internal abutments, spherically ended thrust members being interposed between such abutments and other abutments or seatings carried by diametrically opposed arms on the other shaft end.
Patent GB-1457155-A (GB)
Title: Stabilization and enhancement of enzymatic activity
IPC: C11D3/386
Filed: 1974-06-28
Abstract: 1457155 Stabilized enzyme compositions; detergents PROCTER & GAMBLE CO 28 June 1974 [29 June 1973] 28811/74 Headings C3H C3U and C3A [Also in Division C5] An enzyme composition comprises (a) an enzyme, e.g. an enzyme of EC classes 1 and 3 (oxidoreductase or hydrolase) and (b) an aminated polysaccharide having from 0À01 to 2% by weight of nitrogen in its elemental composition, the weight ratio of said aminated polysaccharide to said enzyme being in the range of from 500 : 1 to 1 : 1. The enzyme is preferably peroxidase- EC 1.11.1.7 or subtilopeptidase A EC 3.4.4.16 and the aminated polysaccharide is preferably aminated starch or aminated cellulose obtained by aminating starch or cellulose with the reaction product of (a) triethylamine, dimethylbutylamine, dimethylhexylamine, dimethyl dodecylamine, methyldiethylamine, methylethylbutylamine, diethylamine, dipropylamine, dibutylamine, ethyldecylamine or methylnonylamine with (b) glycerol α,γ-dichlorohydrin or epichlorohydrin. The composition may be admixed with an anionic, non-ionic, zwitterionic or ampholytic detergent or mixture thereof to give detergent compositions (see Division C5). The preferred detergents are (i) olefin sulphonates (C 12 -C 24 )) (ii) alkyl ether sulphates where R is alkyl or alkenyl (C 10 -C 20 ), x is 1-30 and M is a salt forming cation and (iii) C 9-20  linear alkyl benzene sulphonates.
Patent GB-1065346-A (GB)
Title: Directional control valve
IPC: F15B13/02
Filed: 1964-07-13
Abstract: 1,065,346. Valves; hydraulic transmission. INTERNATIONAL HARVESTER CO. July 13, 1964 [July 17, 1963], No. 28828/64. Headings F2C, F2D and F2V. A valve controlling the flow of fluid from a pump to two motors comprises a housing having two identical rotatable spool valves, the spool 50, Fig. 2, being rotated by a lever 61 through gears 59, 65, while the second spool (not shown) is rotated by a lever 60 through gears 58, 64. Each valve spool has lands 122R, 123R, 124B, 125R forming grooves 126R, 127R, 128R, the grooves 127R, 128R being connected to motor ports 54, 56 and the groove 126R being connected to the inlet. The land 124R has diametrical opposite axial grooves such as 135R leading from groove 127R and grooves 136R, 137R leading from grooves 128R, the axial grooves being 90 degrees apart. Axial grooves 132R, 133R are arranged leading from groove 126R. When the spool is in the position shown no flow takes place to the motor but when the spool is rotated through 90 degrees in either direction the motor ports 54, 56 are connected to supply and exhaust or vice-versa. Each valve has three positions providing nine combinations of the positions of the valves. In the event of an excess pressure in one of the ports 54 or 56, the fluid acts in passage 140R or 145R in co-operation with piston members 142R or 147 to move the spool to the right or left to connect a groove 119R or 118R to the axial grooves on the lead 124R to allow circulation of fluid between the parts. Fig. 6 (not shown) provides the arrangement of passages for interconnecting the bores of the two spool valves. The inlet pressure also acts on an anticavitation valve which prevents flow of the exhust when the pressure falls. A relief valve, Fig. 3 (not shown), has a piston (105) which is moved against a spring (109) to open radial ports (101), (101a) and a flange (108) opens passages (102), (102a) when the pressure exceeds a predetermined value. The valves are used to control the supply from a variable displacement pump 10, Fig. 5, to motors 34, 35 connected through gear-boxes 38, 39 to axles of a vehicle. The supply line 13 is connected to the relief valve 19 and the line 24 to the anticavitation valve 22. The return flow passes to a tank 12 through a filter 16 having a by-pass valve 26. The pump 10 is driven from the engine 28 and is adjustable manually by a member 29.
Patent GB-207802-A (GB)
Title: Product for destroying mosquito larvae or the like
IPC: A01N43/32
Filed: 1923-11-15
Abstract: 207,802. Roubaud, E. C. C., and Veillon, R. A. Nov. 30, 1922, [Convention date]. Insecticides. - A preparation for destroying mosquito larvµ consists of pulverized trioxymethylene mixed with finely powdered vegetable matter such as leaves, straw, sawdust, or bark. Pine bark is crushed, completely dried, pulverized in a ball mill, and then mixed in the mill with an equal quantity of trioxymethylene. The preparation in powder form may be discharged on to the surface of stagnant water by means of a blower or may be mixed with water and applied by sprinkling. The resinous pine bark is stated to prevent the trioxymethylene from becoming wetted by the water.
Patent GB-630003-A (GB)
Title: Improvements in or relating to sewing machines
IPC: F16P1/02
Filed: 1947-10-30
Abstract: 630,003. Sewing-machines. PECK & CO., Ltd., J., and THOMSON, G. Oct. 30, 1947, No. 28929. [Class 112] [Also in Group XX] A shield to prevent injury of the operator by fragments of a broken needle comprises a plate a of transparent material, preferably plastic, non- adjustably attached to the presser-bar or other existing part of the machine by an arm c shaped so that the middle of the plate a is in line with the needle. The plate is preferably inclined, as shown.
Patent GB-724386-A (GB)
Title: An adjustable reclining chair or the like article of furniture
IPC: A47C1/0355
Filed: 1953-10-20
Abstract: 724,386. Seats. LORENZ, A. Oct. 20, 1953 [Oct. 22, 1952 ; Oct. 22, 1952], No. 28980/53. Class 62 (2). An adjustable reclining chair &c., wherein a structure including a seat and a back rest,' co-ordinated with each other in respect of their movements, is rockably mounted on a support, is characterized in that a controlling element swingably mounted on the support is in abutting engagement with a member of the structure and that means are interposed between the controlling element and a leg rest swingably mounted on the seat for effecting movements of the leg rest in co-ordination with the controlling element. As shown, the seat 20 and back rest 18 are rockably mounted at 22 on a support 10, the downward extension 24 of the back rest is connected by a link 26 to a link 32 mounted on the support at 34, this link 32 having a nose 44 in disengageable abutment with a controlling arm 42 also pivotally mounted on the support 10 at 34. A controlling link 48 connects the arm 42 with the leg rest 52 mounted on the seat at 54. When the back rest is swung into its extreme reclined position 18<SP>1</SP> the seat and leg rest assume positions 20<SP>1</SP>, 521. The leg rest 52, however, may be moved into an intermediate position 52<SP>11</SP> without movement of the back rest and seat from position. The seat 20 may be clamped to the support 10 by a clamping device 58, while a suitable clamping device 56 may lock the seat and leg rest in desired relative position. In modifications the abutment may be caused by a pin on one member engaging a slot in the other member to allow relative movement but prevent disengagement. Various forms of linkages may be employed and are described in the Specification.
Patent GB-279906-A (GB)
Title: Unfreezable expansion valve device for liquefied gases
IPC: C01B32/50
Filed: 1927-10-31
Abstract: 279,906. Lemoine, (nÚe Trouillet), R. M. L. Oct. 29, 1926, [Convention date]. Fluids, regulating volume of flow or pressure of; diaphragm valves. - A pressure reducing device for use with vessels containing liquefied or compressed gas and particularly applicable to fire extinguishers using carbon dioxide comprises a succession of expansion chambers containing material soaked with alcohol. The device is secured in the neck of the vessel 1 by means of an externally screwed shank 2<1> formed with an internal chamber 8 into which a tapered nozzle 4 is screwed. The chamber 8 communicates with a second chamber 10 by means of a restricted passage 9, both chambers being filled with oakum soaked with alcohol. The outlet from the chamber 10 is by way of an angle passage 12 controlled by a diaphragm valve comprising an ebonite diaphragm 14 clamped to the end of the casing by a, screwed cap 16, corrugations 15 being provided to ensure, a tight joint. The diaphragm is pressed against an upstanding seat 10<1> by a plunger 17 provided with a head 19 engaging the diaphragm and acted on by a screwed member 20 provided with actuating handle 21.
Patent GB-603868-A (GB)
Title: Improvements in and relating to cutlery pieces and method of producing the same
IPC: B26B3/02
Filed: 1945-11-02
Abstract: 603,868. Making cutlery blades, tangs, and bolsters. FRANCIS BROS. (DROP FORGERS), Ltd., and FRANCIS, F. R. Nov. 2, 1945, No. 29076. [Class 83 (ii)] The integral blade 1a, tang 1b and bolster 1c of a cutlery piece. is produced from a metal strip by compressing axially to upset the bolster portion. The bolster may be completed in stamping dies 2, 2a and finished by grinding &c.
Patent GB-648030-A (GB)
Title: A new or improved implement for removing the caps of jars, bottles, tins, and like containers
IPC: B67B7/18
Filed: 1948-11-09
Abstract: 648,030. Removing caps from jars. GIBSON, L. Nov. 9, 1948, No. 29096. [Class 61(iii)] A wrench for removing screwed and other caps from jars and the like comprises a lever 2 adapted to be laid over the cap 8 of a jar 9, and toothed jaws 7, 11 for gripping the periphery of the cap, the jaw 7 being pivoted to the lever at 12 and the jaw 11 pivoted at 13 to a block 10 slidable on the lever. The slide 10 is slotted for the passage of the lever; a tooth being provided on the wall of the slot for engagement with one of the ratchet or saw teeth 6 on the toothed edge 5 of the lever when the latter is turned to unscrew the cap. The slide may be spring-urged into locking engagement with the toothed edge. The jaw 11, pivoted to the lower face of the slide may be of sector, circular or rectangular form and mounted centrally or eccentrically on the pivot 13. The downturned heel 4 of the lever forms a stop for the jaw 7.
Patent GB-1129428-A (GB)
Title: Flow supervisory arrangement
Inventor: FOWLER MICHAEL LAWRENCE
IPC: G01F1/00
Filed: 1967-06-23
Abstract: 1,129,428. Measuring flow electrically. STANDARD TELEPHONES & CABLES Ltd. June 23, 1967, No. 29114/67. Heading G1N. [Also in Division G4] Transducers 111, 112, Fig. 1, measuring rate of flow of fluid in a pipe 10, or of fluent material on a conveyer, are each rendered operative for a respective period of time by a control signal from a master station 16, and when the flow signals, which are transmitted by units 131, 132 respectively, are detected at the master station as differing by more than a predetermined amount, an alarm indicator 17 operates. The outputs of the transducers are pulse trains having a flow-dependent frequency, and are fed to the units 131, 132 in which the pulses are shaped (at 30, Fig. 2, not shown), synchronised to a master frequency (at 31), divided down (at 33) and counted on two counters (35, 36) one of which (36) is cumulative, and the other (35) is reset to zero each time its information is extracted by a modern unit (38) to be sent to the master station via a line 14. The master station includes a clock (74, Fig. 3 not shown), a stored programme control (66), parity and store units (61, 62, 63, 64) for comparing for example, successive outputs of one transducer to check for accuracy, and a subtraction unit (70) in which the two measurement signals derived from the respective transducers and stored (at 64) are compared. The difference signal (from 70) is fed back to store (69) and compared, also in subtractor (70), with a predetermined difference signal obtained from the store (64) or from an external key (67). The master station is also arranged to check correct receipt of a command signal by the transducer circuits before causing implementation of the command. A rate of change of flow signal may be obtained by comparing successive counts from the same transducer.
Patent GB-190323-A (GB)
Title: A new form of roofing and weather and wall tile
IPC: E04D1/26
Filed: 1921-11-03
Abstract: 190,323. Lee, R. Nov. 3, 1921. Roofing-tiles.-Cement sheets A of rhomboidal contour are creased horizontally and vertically to represent a number of smaller tiles. A flat underlap is formed at the top edge B and one side C of the sheet.
Patent GB-1205864-A (GB)
Title: Apparatus for the supply of dry compressed air to a device or devices for utilising said air
Inventor: GRATZMULLER JEAN LOUIS
IPC: F04B39/16
Filed: 1968-06-20
Abstract: 1,205,864. Compressed air systems. J. L. GRATZMULLER. June 20, 1968 [June 20, 1967], No.29349/68. Heading F1N. A compressed air installation for use in supplying dry air to e.g. reservoirs 78, 78<SP>1</SP> associated with circuit breakers, comprises a plurality of gas storage containers (not shown) charged with air by compressors controlled by pressure switches 60, 62 and connected by lines 12, 14 and 12<SP>1</SP> ,  14<SP>1</SP> to control valves 66 1  ..... 66 6  electrically actuated to distribute the air through small-bore copper lines 20, 20<SP>1</SP> to the reservoirs. The small bore lines 20, 20<SP>1</SP> reduce the air pressure supplied to the reservoirs. The lines 12, 14 and 12<SP>1</SP>, 14<SP>1</SP> contain air filters 46 and 46<SP>1</SP>, safelty valves 56 and 56<SP>1</SP> and manometers 52, 52<SP>1</SP>. If the pressure in a reservoir 78 falls, an associated pressure switch 22 or 22<SP>1</SP> is closed to energize the electromagnet 74 of one of the control valves 66 1  ...... 66 6 . Enerization of the electromagnet 74 opens a pilot valve 72 controlling the main valve 66 1  which thereby opens to direct air from the line 14<SP>1</SP> through a check valve 80 to the reservoirs 78. The gas storage containers are provided with purge bottles for collecting condensed water. The water is emptied by a manually, chronometrically or automatically actuated valve. Automatic opening of the valve Fig.5 (not shown) is initiated by a switch responsive to the weight of the bottle and accumulated water. When the switch is operated an electromagnetic pilot valve opens to allow actuating fluid to open the purge valve. (For Figures see next page)
Patent GB-240035-A (GB)
Title: Improvements in or relating to ampoules for containing medicaments
IPC: B65D81/32
Filed: 1924-12-08
Abstract: 240,035. Heublein, W. O. Dec. 8, 1924. Capsules.-A glass capsule for containing the ingredients of a solution for hypodermic injection comprises a lower part a for a solid, liquid, or gas and an upper part b for the liquid solvent. The parts a, b are separated by a tulip-shaped capillary tube c which is weakened at its point of junction with the partition g and is made solid at the part d immediately above this junction. The part a of the capsule is sealed under reduced pressure so that on breaking open the upper part at the neck f, and breaking off the tube c from the partition g, the liquid in the part b will be sucked through the narrow opening in the partition into the lower part a of the capsule. Solution may be facilitated by shaking. The part a of the capsule is then removed by breaking at the weakened neck h, and the liquid withdrawn therefrom into a syringe for injection.
Patent GB-897150-A (GB)
Title: Process for recovering platinum group metals from deactivated catalyst
Inventor: HOEKSTRA JAMES
IPC: C22B11/00
Filed: 1960-08-29
Abstract: Platinum group metals are recovered from a deactivated catalyst containing the metal and fluoride on an alumina support by digesting the catalyst with sulphuric acid, preferably 90% to 110% of the stoichiometric equivalent of the alumina in the catalyst, to dissolve a major portion of the alumina, followed by digesting the remaining sludge with hot aqueous sulphuric acid of 15% to 80% weight concentration and separating the resulting fluoride containing solution to leave the platinum group metal.  The first digestion is carried out above 38 DEG C. preferably at 120 DEG C. to 175 DEG C. with sulphuric acid of 20% to 90% concentration for 1 to 7 hours with agitation and the sludge is washed with hot water before the second digestion at 50 DEG C. to 175 DEG C. for 1 to 24 hours with agitation.  The resulting platinum group metal sludge may be washed with water and then treated with aqua regia or washed with water and then dried.
Patent GB-1029909-A (GB)
Title: Pressure discharge container for powder in bulk
Inventor: BROOMFIELD DONALD HENRY
IPC: B60P1/60
Filed: 1964-07-23
Abstract: 1,029,909. Pneumatic conveyers. ASSOCIATED PORTLAND CEMENT MANUFACTURERS Ltd. July 23, 1964, No. 29668/64. Heading B8A. An outlet nozzle 5, Fig. 3, for granular &c. material from a fluidized container, comprises a tapered tube 7 of larger diameter than the outlet 20 and supplied with pressurized air through a branch pipe 1 leading from the air space at the upper portion of the container. An orifice valve plate 11 has openings of different size for controlling the flow.
Patent GB-701948-A (GB)
Title: Improvements in or relating to disc brakes for vehicles
Inventor: ARTLETT-COE JOHN
IPC: F16D55/224
Filed: 1951-12-19
Abstract: 701,948. Disc brakes. GIRLING, Ltd. Dec. 17, 1952 [Dec. 19, 1951], No. 29715/51. Class 103(1) The friction elements 13 of a single disc spot type disc brake are applied by the arms 23 of levers 16 and 17 having co-operating lugs 24, one of the levers 17 having an extended arm 25 for connection to a cable or the like from the operator's control. The levers 16 and 17 are pivoted at 18 and 19 to slides 20 which are guided in longitudinal recesses or guideways in the housing 10 so that the forces exerted by the levers on each side of the disc become equalized. The co-operating faces of the lugs 24 are so shaped that their point of engagement remains substantially equidistant from the pivotal axes as the braking pads wear away.