baber/WOPTO huggingface dataset:
Patent GB-1275992-A (GB)
Title: Improvements in or relating to a clutch
IPC: F16D13/71
Filed: 1969-06-10
Abstract: 1275992 Friction clutches SOC ANON FRANCAISE DU FERODO 10 June 1969 [10 June 1968 25 Feb 1969] 29408/69 Heading F2C In a friction clutch wherein a driven disc 12 is normally clamped between a driving flywheel 10 and a presser plate 11 by a diaphragm spring 16 fulcrumed at 35 on the clutch housing 13, the presser plate 11 is drivingly connected to the clutch housing 13 by strips 15 of resilient sheet metal inclined to the radius R at an angle C which lies between 45 and 75 degrees and preferably is close to 60 degrees. As shown all the strips may be inclined in the same direction to transmit torque in tension. The strips 15 are riveted at 31, 33 to the presser plate 11 and the clutch housing 13. The strips 15 may be prestressed in the axial direction of the clutch in order to move the presser plate away from the driven disc during clutch disengagement. In Figs. 8-12 (not shown) the presser plate is connected to the clutch housing by pairs of oppositely inclined strips 15 to provide for bidirectional operation. The angle subtended by the strips of each pair lies between 30 and 60 degrees and is preferably about 45 degrees. Balancing holes (34), Fig. 4 (not shown), may be drilled in the presser plate 11.
Patent GB-484170-A (GB)
Title: Improvements relating to the polymerization of olefins
IPC: C07C2/08
Filed: 1936-10-31
Abstract: Mixtures of normal and iso-olefines such as a C4 cut are passed over a solid catalyst at at least 200 DEG  C. to polymerize substantially only normal olefines, the polymer is separated, and the remaining olefines polymerized at a lower temperature.  The first polymer is blended with ordinary gasolines, the second with high grade gasoline. Conditions may be adjusted so that some normal olefines are unpolymerized in the first stage and a mixture of normal and iso constituents is formed in the second, or the two polymers may be blended to give a desired octane number.  The polymers, especially that of the second stage, may be hydrogenated.  In an example, the first polymer is about 93,5 per cent, the second about 50 per cent normal constituents.  The first has an octane number of 82, the second of 84 which, after hydrogenation, become 79,5 and 89 respectively.ALSO:Mixtures of normal and iso-olefines such as a C4 cut are passed over a solid catalyst at at least 200 DEG  C. to polymerize substantially only normal olefines, the polymer is separated, and the remaining olefines polymerized at a lower temperature The first polymerization is preferably effected at 250-350 DEG  C., 400 DEG  C. being the practical upper limit, and the second at about 50-150 DEG  C.  Pressure is generally below 100 lb./in.2, and preferably about atmospheric.  The time may vary from 5-100 secs. in the first stage, and from about 5-50 in the second. Catalysts may be oxides of Groups 3 and 4, and especially Al, La, and Zr oxides on silica, rare earths alone or mixed with oxides of Al, Zr or Zn, phosphoric acid on carriers, Al Cl3 on pumice or silica, or Al+Cd on silica.  The first polymer is blended with ordinary gasolines, the second with high grade gasoline. Conditions may be adjusted so that some normal olefines are unpolymerized in the first stage, and a mixture of normal and iso constituents is formed in the second, or the two polymers may be blended to give a desired octane number.  The polymers, especially that of the second stage, may be hydrogenated.  In an example, a butane-butene mixture was passed over Al2O3+SiO3 at about 250 DEG  C. and, after separation of polymer, over the same catalyst at about 150 DEG  C.  The first polymer is about 93,5 per cent, the second about 50 per cent normal constituents.  The first has an octane number of 82, the second of 84 which, after hydrogenation, become 79,5 and 89 respectively.
Patent GB-779107-A (GB)
Title: Lock knot
IPC: D04G1/00
Filed: 1955-10-18
Abstract: 779,107. Knots. DOMINION TEXTILE CO., Ltd. Oct. 18, 1955 [July 1, 1955], No. 29723/55. Class 112. [Also in Group VIII] Two twines 10, 12, are joined at the apices of the members of a net [Group VIII] by the knot of Fig. 2, or its opposite hand counterpart.
Patent GB-537263-A (GB)
Title: Improvements in and relating to steel band oven and like conveyors
IPC: A21B1/48
Filed: 1939-11-13
Abstract: 537,263. Conveyers. POINTON, J. E., and BAKER PERKINS. Ltd. Nov. 13, 1939, No. 29976. [Class 78 (i)] A composite conveyer, for example for ovens used for baking biscuits, comprises a train of longitudinally flexible thin metal surface elements or sheets mounted to form an endless conveyer or oven sole. As shown, the steel sheets 12 are carried in overlapping manner by a pair of endless chains 10 travelling on chain wheels 11 and horizontal guide rails. The leading end of each sheet is secured to the chains by dead-eyes 13, the shanks 14 of which extend into ferrules 15 of the chains, or the chain links are provided with lugs to which the forward corners of the sheets are attached. Between the dead-eyes 13 the sheets 12 are guided and supported by additional dead-eyes 16, channel members, angle brackets, or turnbutton devices 21, Fig. 7. Additional support for the sheets may be provided between the chains by a guide rail or a series of rollers, or by cross-bars 17 on the back of the sheets. At the turning points of the oven, the sheets are guided and supported by drums 18 with grooves 19 for the bars 17. The trailing edge of each sheet may be positioned by supporting tongues 20, Fig. 9, or by slotted or channelled lugs or other means with respect to the head of the next sheet, or may rest on the head of the sheet, which may be recessed or bent so that the upper surfaces of adjacent sheets lie in the same plane. The leading edge may be stiffened by a rod or bar 22, Fig. 8, which may engage at its ends with a slot 24 in a socket member 23 having a shank 25 engaging the chain. In further modifications, (a) the sheets are guided on rails or the like and are driven by a single chain engaging lugs on the under side of the sheets ; (b) rollers are provided between the chain wheels 11, so that the sheets 12 may be removed and a wire mesh band placed around the rollers ; (c) steel sheets such as 12 are detachably secured to the meshes of a wire mesh band by clips, hooks or other means ; (d) the steel sheets are replaced by sheets of wire mesh reinforced by metal bars, angle irons &c.
Patent GB-805718-A (GB)
Title: Improved machine for scouring, beating, brushing and polishing granular materials
Inventor: GILLETT THOMAS HAROLD
IPC: B02B3/04
Filed: 1956-10-04
Abstract: 805,718. Cleaning and husking grain and seeds. SIMON, Ltd., H. Sept. 4, 1957 [Oct. 4, 1956], No. 30254/56. Class 58. A machine for scouring, beating, crushing, or polishing cereal grains, seeds, &c. and adapted to form an integral part of a pneumatic elevator comprises a cylindrical stator 1 with conical end extensions 2 and 3 which converge to form continuations of a substantially vertical elevating pipe 4, and a coaxial rotor 5 with lower conical extension 13, mounted within the stator and driven through a rotatable shaft 10 by an electric motor 6 which is enclosed in a stationary conical fairing 16. In operation, the cereal grains, &c., are carried upwardly by air draught into the annular air channel between the rotor 5 and the inside scouring or other treatment surface 7 of the stator which channel has a cross-sectional area so proportioned with regard to that of the pipe 4 that the terminal velocity of the entrained cereal grains, &c., is approached so that they are moved in an upward path over the surface 7 by longitudinal, radial or helical beaters, brushes or impellers 8 carried by the rotor.
Patent GB-1435538-A (GB)
Title: Antistatic agents for plastics wheelchair
IPC: C08J7/044
Filed: 1973-06-26
Abstract: 1435538 Making films antistatic DAICEL Ltd 26 June 1973 [27 June 1972] 30358/73 Heading B5B [Also in Divisions C2 and C3]  Polymeric films are made antistatic by applying to their surface a solution of a compound of formula  wherein R 1  is alkyl having from 7 to 29 carbon atoms, R 2  is H or alkyl having 1 or 2 carbon atoms, R 3  is lower alkyl having from 1 to 4 carbon atoms or hydroxyalkyl of the formula R 5  | -(CH 2 CHO) y H in which R 5  is H or alkyl having 1 or 2 carbon atoms and y is an integer of from 1 to 3, R 4  is lower alkyl having from 1 to 4 carbon atoms or hydroxyalkyl of the formula  in which R 6  is H or alkyl having 1 or 2 carbon atoms and z is an integer of from 1 to 3, and x is an integer of from 1 to 3.  In an example the antistatic agents were dissolved in isopropyl alcohol and films of polypropylene, polyethylene, polyester or nylon were first dipped into the solution and then dried.
Patent GB-520439-A (GB)
Title: Improvements in or relating to rubber shod wheels
IPC: B62D55/14
Filed: 1938-10-20
Abstract: 520,439. Wheels and tyres for endless-track vehicles. ANDRE RUBBER CO., Ltd., T. B., and GILLETT, T. Oct. 20, 1938, No. 30359. [Class 144 (ii)] Wheels for endless-track vehicles, are fitted with tyres C formed wholly of soft rubber vulcanized to the rim B having a brass or like surfacing without the interposition of a junctionlayer of ebonite. To ensure adhesion, the rim may be formed with undercut groove B<SP>1</SP> having serrated surfaces B<SP>2</SP>. To prevent overheating, the tyre may be formed with concave sides ; with cavities such as C<SP>1</SP> extending transversely (axially or obliquely) into or through the tyre ; or with radial cavities which may be arranged to register with apertures in the rim.
Patent GB-226546-A (GB)
Title: Improvements in and relating to screw thread cutting tools
IPC: B23B27/06
Filed: 1924-12-17
Abstract: 226,546. Steinr³ck, H. Dec. 17, 1923, [Convention date]. Chasers.-A screw-cutting tool has at least two cutting teeth each having a single side cutting edge parallel to the sides of the thread being cut and spaced apart in the same plane by a distance at least equal to the pitch of the thread, each cutting edge being adapted to cut the thread to its full depth. In cutting a V-thread, Fig. 1, the cutting-edges b, b<1> only operate and are separated by a groove d which may have inclined or parallel sides c, c<1>. In cutting a trapezoidal or square thread, Fig. 2, the flank cutting-edges b, b<1> are separated by a distance equal to double the pitch and the extremities e of these teeth project less than that of the centre tooth f<1> which cuts on its extremity f only. The centre tooth f<1> preferably cuts the corners at the base of the thread or rounds them off.
Patent GB-715729-A (GB)
Title: Improvements in and relating to detachable handles
IPC: B65D25/28
Filed: 1952-12-01
Abstract: 715,729. Parcel carriers. BAILLARD. P. A. J Dec. 1, 1952 [Nov. 29, 1951; Sept. 8, 1952], No. 30477/52. Class 133 A detachable carrying handle for parcels &c. has a support member formed of plates 1 and 2 separated by a rib 3 to form a groove 3a and having a loop 4 of flexible material passed through holes 5, 6 and secured to plate 1. The plate 2 is passed through a slot 13 in the package so that plate 1 lies on the inside and the wall 12 of the package rests within the groove 3a. The plates may be assembled to form the support or the latter formed in one piece.
Patent GB-432873-A (GB)
Title: Improvements in and relating to pace making and rhythm indicating apparatus for athletes
IPC: G04F5/02
Filed: 1933-11-02
Abstract: 432,873. Rhythm indicators. PAPE, C., 11, Benzmannstrasse, Sudende, Berlin. Nov. 2, 1933, Nos. 30504 and 30505. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 5, 1934]. [Class 88 (ii)] Relates to rhythm indicators giving visible or audible indications to athletes, driven mechanically, electrically, hydraulically, or pneumatically and mounted either on the person or on the bicycle, boat &c. In Figs. 1, 2 a single or double armed lever 1 is oscillated by a link 4, crank disc 3 and gearing 10, 9 from a clock-spring attached at 71, 5. The spring is wound up by a hand-grip 8 or from the bicycle &c. drive by an automatically disengageable flexible band. The frequency of oscillation is adjusted by turning a button 17 rotating gearing 16, 141 and a screw-thread 14 to adjust a sliding nut 12 bearing on the brake disc 13<1> of a centrifugal governor 11. The position of adjustment is indicated by a disc 2 and stationary mark 2<1>, and is maintained by the engagement of a spring-pressed pin 19 in one of a series of holes in gear-disc 16. An arresting- brake 22 may be applied to a disc 23 on the governor spindle, by a knob 21. The apparatus is contained in a dust-tight and rain-proof casing 28. The indicating arm may be driven by an anchor escapement, Fig. 8 (not shown). A table indicating the adjustment required for given speeds with different bicycle-gearings may be combined with the apparatus, Figs. 9-13, and 23, 24 (not shown). For oarsmen, twin arms 40, Fig. 14, may be arranged to swing in the same direction. In Fig. 15 a number of double-armed levers 56-59 are used, oscillating at different speeds but only one being visible at a time. In Fig. 16 (not shown), the indicating arm is driven by an air wheel through a centrifugal governor. In Fig. 17, the double indicating arm 761 is oscillated by the action of teeth 76 on a spring-loaded arm 771. Figs. 18, 19 (not shown), show magnetic and electromagnetic arrangements, in the latter case with lamps or telephone receivers as signal-devices. Fig. 22 (not shown), shows a magnetic brake for controlling the frequency. Where lamps are used the signals may be reflected by a mirror, e.g. on to the road.
Patent GB-511469-A (GB)
Title: Improvements in or relating to sliding sash windows
IPC: E05F11/38
Filed: 1938-10-22
Abstract: 511,469. Sliding window holders. SKENFIELD, H. S., and MARGRAVE, G. H. Oct. 22,. 1938, No. 30562. [Class 44] [Also in Group X] A sliding window particularly for vehicles has side frame members of double channel section, one channel 2 being lined with felt &c. to receive the sliding pane 3, the other channel 1 housing a rack 5 engaged by a sliding-plunger catch. Each plunger 8 is mounted in a casing 9 carried by the top bar 6 of the sash and is urged into engagement with the rack by a spring 14 the compression of which is adjustable by a screw plug 15. The plunger has a pin 12 extending through an oblique slot 13 in the casing and terminating in a finger piece 11, which is nipped against a fixed finger piece 10 on the casing to withdraw the catch in raising or lowering the window. The diameter of the plunger is reduced at 16 to provide a lubricantreceiving space.
Patent GB-1260733-A (GB)
Title: Membrane separation process
Inventor: WESTAWAY MICHAEL THOMAS
IPC: B01J31/40
Filed: 1969-06-17
Abstract: 1,260,733. Dialysis. BRITISH PETROLEUM CO. Ltd. 3 June, 1970 [17 June, 1969], No. 30575/69. Heading B1X. Organic metal compounds are separated by reverse osmosis using a polyolefinic membrane.  A membrane 10 in pressurised cell is supported on a steel plate 11 in Fig. 2. In Figure 3 a membrane 11 cushioned by filter paper 18 rests on a steel plate 12. To create turbulence feedstock enters through a 1 mm. orifice 16.
Patent GB-520449-A (GB)
Title: Switch controls for electrically heated washing tanks
IPC: G05D23/275
Filed: 1938-10-22
Abstract: 520,449. Actuation of switches. COTTING- HAM, R. F. Oct. 22, 1938, No. 30591. [Class 38 (v)] The heating current for a washing tank is cut off when the water level sinks by a switch operated by a float 1 in a chamber 2 connected at the bottom 7 to the washing tank 5 and when the tank 5 is emptied through waste pipe 6, the suction exerted by the flow of water on the pipe 7 speedily empties the tank 2 causing the float 1 to descend and the switch 13 to be opened earlier than would otherwise be the case. The float 1 by means of rods 9, 10 tilts a lever 11 connected to a member 12 which operates a switch pin 13.
Patent GB-1023174-A (GB)
Title: Producing 5-nucleotides by fermentation
IPC: A23L27/24
Filed: 1962-08-09
Abstract: 51-Guanylic acid is obtained by cultivating a 51-guanylic acid producing strain of bacteria of the genus kurthia or of the new species of the genus Bacillus (as defined below) in an aqueous nitrient medium under aerobic conditions for sufficient time to accumulate 51-guanylic acid in the broth. Other 51-nucleotides such as 51-adenyli acid, 51-cytidylic acid, 51-uridylic acid and 51-xanthylic acid may also be formed in addition to the 51-guanylic acid.  The strain of bacteria may be isolated from natural sources by means of a screening procedure which comprises cultivating a strain of the appropriate bacteria in a solid medium, e.g. nutrient agar, to achieve growth of the bacteria, killing the bacteria by known methods, adding to the killed bacteria a solid medium, e.g. a second nutrient agar, inoculated with a guanine-requiring mutant of Bacillus subtilis, incubating the inoculated medium for sufficient time to get good growth of the Bacillus subtilis and selecting those colonies of original bacteria around which there is good growth of the mutant, the selection being made on the basis of the size and thickness of the halo formed around the test strain colony.  The morphological and physiological characteristics of eight strains of bacteria of the genus Kurthia and eight strains of the genus Bacillus which have been isolated by the above screening procedure are described and the strains are stated to represent new species of Kurthia and Bacillus respectively.  Several examples are given and it is stated that mutants of the defined species of Kurthia and Bacillus may also be used.  Reference has been directed by the Comptroller to reference 983,213.
Patent GB-1243730-A (GB)
Title: One-way self-aligning torque unit
IPC: F16D41/067
Filed: 1969-06-17
Abstract: 1,243,730. Brakes. MARLAND ONE-WAY CLUTCH CO. Inc. 17 June, 1969 [18 June, 1968; 23 May, 1969], No. 30686/69. Heading F2E. A device for preventing reverse rotation of a shaft 12 which is also subject to misalignment, comprises a flexible coupling 16 connected to a fixed plate 10 and to a non-return ratchet device 14 which is connected to the shaft. The flexible coupling consists of tooth-rings 28, 40 engaging corresponding recesses 52, 54 in a sleeve assembly 42 carried on bearing button 62. The one-way ratchet comprises rollers 72 riding between inner and outer races 70, 68 of which this later rotates with the shaft 12. The inner race has ramp-steps to cause wedging of the rollers on reverse movement, springs 120 biasing a roller-cage into this wedging position. Lubricant is supplied to both these units from tank 170 via pipes 174, 176, 178, 180, 184 and 206, 204, 208. In a modification (Figs. 6-9, not shown) the ratchet may be inverted to work in the opposite direction and a drive shaft (266) passes through the flexible coupling.
Patent GB-665085-A (GB)
Title: Improvements in or relating to a magnetic induction accelerator for charged particles
IPC: H05H11/00
Filed: 1949-11-30
Abstract: 665,085. Magnetic induction accelerators. ROLLINSON, E. W. (Illinois, Board of Trustees of the University of). Nov. 30, 1949, No. 30720/49. Class 39 (i). A betatron is provided with an injector having a U-shaped shield, the leg portions of which extend radially beyond the electron emitter, a slot for the electrons being provided in one leg only. A cathode filament 16 and the surrounding focusing electrode 17 are supported by members from concentric glass cylinders which are carried by a further cylinder sealed to the porcelain neck of the betatron. The electron path is shielded from the electrode supports by the U-shaped member 19 having a slot 19a<SP>1</SP> for the electron stream, legs 19a, 19b strengthened by. end flanges, and an X-ray target 22. The legs project outwardly at least half-way towards, and preferably beyond, the opening in the internal palladium coating of the betatron; the shield and coating are earthed.
Patent GB-681519-A (GB)
Title: Fumigating composition containing d.d.t.
IPC: A01N25/20
Filed: 1950-12-18
Abstract: A fumigating composition comprises an intimate mixture of D.D.T., white gum (Almus japonica), cheung sik (Achillea sibirica) and fa fan (Cryptomeria japonica).  The preferred composition contains 10 per cent D.D.T., 10 per cent cheung sik, 25 per cent fa fan and 55 per cent white gum.  It is prepared in the form of a coil by adding to the powdered ingredients sufficient water to form a mouldable mass, pressing said mass into a suitable mould and thereafter drying said coil.  When ignited the coil produces a fumigating smoke.
Patent GB-1467720-A (GB)
Title: Gas turbine engine fuel delivery tube assembly and fuel delivery and combustion apparatus
IPC: F02C7/22
Filed: 1974-07-11
Abstract: 1467720 Gas turbine engine combustion equipment GENERAL ELECTRIC CO 1 July 1974 [30 July 1973] 30742/74 Headings F1G and F1L [Also in Division F4] The invention relates to combustion equipment for a gas turbine engine and to an arrangement for mounting a fuel delivery tube to the equipment in which means are provided to ensure correct positioning of the fuel delivery tube. The engine shown comprises a compressor, shown in part at 14, combustion equipment 28 and a turbine shown in part at 26, the combustion equipment comprising an annular flame tube defined by inner and outer walls 76 to define a combustion space 84, the flame tube being located between an inner wall unreferenced, and an outer wall 62 to define airflow passages, the outer passage being indicated at 80. A further casing 72 is disposed around the outer wall 62 to define a cooling air-flow passage 74 therebetween. A plurality of air/fuel mixing devices is disposed at the upstream end of the flame tube, one such device being shown at 82 having an air inlet 86. A fuel delivery tube 94 is supported by the outer wall 62 and projects into the air inlet 86 of the air/fuel mixing device. The fuel delivery tube comprises a flange portion 102 which is received within a recess 138 formed in the outer wall 62; a collar 116 formed with a flange 120 is disposed around the fuel delivery tube 94, the parts being secured by means of a part-spherical member 124 having a screwed portion 132 which engages within the screwed recess 136 of the outer wall 62. A pin 122 is secured to the lower surface of the flange 120 of the collar 116, the pin upon assembly passing through an opening 104 formed in the flange 102 of the fuel delivery tube; the opening 104 extends into a groove 106 formed in the tube. Upon assembly the projecting portion of the pin 122 must engage a groove 154 formed in the recess 136 in the outer wall 62 in order that the outlet end 100 of the fuel delivery tube may be properly received within the inlet 86 of the fuel/air mixing device 82. Sealing means 142, 144 are provided between the further casing 72 and the part-spherical surface 128 of the member 124 to prevent leakage of air from the passage 74. The air in the passage 80 is compressor discharge pressure; the air in the outer passage 74 is at an intermediate compressor pressure being taken from an intermediate point 48. Air at compressor discharge pressure is also tapped off through a duct 66 for external use, and air at an intermediate pressure is tapped off through duct 68 disposed around the duct 66.