baber/WOPTO huggingface dataset:
Patent GB-1116164-A (GB)
Title: Control system for helicopters
IPC: B64C27/605
Filed: 1966-05-17
Abstract: 1,116,164. Helicopter, J WAGNER. 17 May, 1966 [17 May, 1965], No. 21917/66. Heading B7W. A helicopter having coaxial contra rotating upper and lower rotors 2, 1 carrying blades 5, 6 adjustable for pitch. is provided with a control system comprising upper and lower swash-plates 9, 8 each tiltable for effecting cyclic pitch control of the associated blades and each being linked together by control rods 20 andintermediate members 22, so that with the intermediate members 22 maintained in the same position relative to the lower swash-plate 8, axial move ment ;of the: lower swash-plate 8 causes an identical movement of the upper swash-plate 9 and thus provides simultaneous pitch control of the blades, whereas rotational movement of the intermediate ,members 22 provides differential collective pitch control. Each swash-plate ,8, '9 includes a part 23, 13 rotatable with its respective rotor 2, 1 and a control part 21 12. The control part 21 of the upper swash-plate rotates at the same speed and in the same direction as the ,rotatable part 13 of the lower swash-plate since it is connected thereto by the rods 20. Movements imparted to the upper swash-plate past,23 act through rods 24, pivot shackles 25 and control-rods 26 to operate blade-adjusting levers 27. The blade pitch adjusting levers 18 of the lower blades 5 are operated by movement of rods 16 acting through pivot shackles 17 and control-rods 19 The rods 16 are connected to the lower swash-plate control part 13 via the intermediate members 22, and thus both axial movement of the swash-plate 8 and rotational movement of the members 22 causes adjustment of the pitch. To cause a differential change in collective pitch a rotatable sleeve 42 is moved axially by .an hydraulic cylinder 28 whereby levers 43 pivoted to the sleeve at 44 rotate about pivots 48 on the ends of rods 47 connected to the control part 13. Rotation of the levers 43 causes, through rods 46 connected thereto, the rotation of the intermediate members 22 and thus through the rods 16, 20 moving in opposite directions a differential change in the pitch of the two rotors. Hydraulic cylinders 14, 15 are operable to cause the tilting of the swash-plates for cyclic pitch control and means (not shown) are provided for causing axial movement of a housing 49 and thus the simultaneous axial movement of the swash-plates required for effecting simultaneous equal changes in pitch. In a modification (not shown) the intermediate members 22 may be in the form of sliding wedges.
Patent GB-225296-A (GB)
Title: Improvements in shoe heels
IPC: A43C13/02
Filed: 1923-08-30
Abstract: 225,296. Swan, H. H., Brown, L. A., and Young, H. Aug. 30, 1923. Countersunk tips. - A countersunk tip 13 for a boot heel has a bevelled edge 15 and sector-shaped projections 14 of which the concave surfaces face towards the heel breast. The edge 15 engages similar surfaces 9, 10 on the heel 1 and the projections 14 fit into corresponding sockets 12 in the heel. The projections and sockets are arranged at the engaging edges of the respective parts 13, 1.
Patent GB-771734-A (GB)
Title: A cutting device for chopping up food stuffs
IPC: B26D3/26
Filed: 1955-07-29
Abstract: 771,734. Onion &c. choppers. GIMELLI, S. July 29, 1955 [Aug. 2, 1954], No. 21982/55. Class 28(2) An onion &c., placed on a board is chopped by decending trapezoidal blades 19a &c., mounted on a crossbar 18 connected to press down knob 15. The crossbar 18 can side in longitudinal slots 21a in a sleeve 21 fixed on a stripper plate 20 to prevent twisting of the blades. The blades 19a slide in slots 20a in a stripper plate 20 sliding in a cylinder 12 and stopped on the upward stroke by a shoulder 12a thereby stripping the chopped material. The blades 19a are inclined to each other, their divergence facilitating the freeing of the chopped pieces. The blades 19a &c., can be rotated within the housing to make successive cuts at different angles. In a modification the blades are mounted at their top ends and spaced on a threaded cross shaft connected to the operating knob.
Patent GB-628565-A (GB)
Title: Improvements in or relating to controllable dual electronic amplifiers
IPC: H03F1/36
Filed: 1946-07-24
Abstract: 628,565. Automatic gain control. PHILIPS LAMPS, Ltd..July 24, 1946, No. 22005. Convention date, March 3, 1943. [Class 40 (v)] An amplifier using a valve having two control grids with a screen grid between them and in which two signals in different frequency ranges are applied to the second control grid, has its gain controlled by potentials applied to the two control grids in such a ratio that the valve always operates on the linear part of its characteristic, a resistance being included in the screen grid circuit. The Figure shows a reflex amplifier in which the LF. output M.F. of a receiver is applied through circuit 1, 2 to the second control grid of a heptode valve 3. The amplified signal appearing across circuit 4 at the anode is detected by means not shown, and re-applied to the second control grid through terminals L.F., potentiometer 5, condenser 6 and I.F. filter 7, 8. Amplified modulation signals are available across anode resistor 9. Cathode bias is connected to the two grids in the correct proportion through voltage divider 11, 12, 13, 14. Part of the I.F. signal is applied by means not shown, through condenser 16 to detector circuit 15, 17, 18 to produce a gain control voltage which is also applied to the two grids in the correct proportions through the divider 11, 12, 13, 14. In a modification (Fig. 3, not shown) the detected signal is first applied to the first control grid and the resulting pre-amplified signal developed across screen resistor 19 is then applied to the second control grid as described above. Negative feed-back may be applied by means of a condenser and resistance connected between the screen and first control grids, to cancel hum or I.F. voltages which appear at the screen grid or to stabilize the pre-amplifier.
Patent GB-1520240-A (GB)
Title: Process for disposing of refuse
IPC: C10J1/207
Filed: 1977-05-25
Abstract: 1520240 Gasifying waste UNION CARBIDE CORP 25 May 1977 [26 May 1976] 22014/77 Heading C5E A process for disposing of refuse while simultaneously producing a useful gaseous product and an inert solid residue, comprises the steps of (a) feeding refuse into the top portion of a vertical shaft furnace, (b) feeding an oxygen-containing gas into the base of said furnace, (c) pyrolyzing the organic portion of the refuse, (d) fluidizing the inorganic portion of the refuse, (e) discharging the gaseous products from the top of said furnace, and (f) tapping the fluidized inorganic material from the base of said furnace, wherein char is removed from the furnace in an amount such that oxygen consumption in said process is reduced, while a sufficient amount of combustible materials is retained in the furnace so that on oxidation thereof the energy requirements of the process are satisfied, the amount of char removed (kgs. char/metric ton refuse) being less than the value of 50X/Y, where: X = kgs. carbon contained in a metric ton of refuse, Y=weight per cent (%) carbon in the char and wherein the range of oxygen consumption for a given amount of char removed will be within the values determined by the equation: R=B-(8Î10<SP>-6</SP>) (CY) where: R = oxygen consumption (metric tons oxygen/metric ton refuse), C = char removal (kgs. char/metric ton refuse), Y is the same as above, and B can vary between 0À15 and 0.28.
Patent GB-934263-A (GB)
Title: Process and device for sealing articles of chocolate confectionery
IPC: A23G3/20
Filed: 1960-06-23
Abstract: 934,263. Confectionery. BAKER PERKINS HOLDINGS Ltd., and ANCIENS ETABLISSEMENTS A. SAVY JEANJEAN ET CIE. June 23, 1960 [June 23, 1959], No. 22047/60. Class 49. In a process for sealing articles of chocolate confectionery having a shell containing a filling or centre and a lid, the edges of the shell and lid which contact one another are formed bevelled. As shown, chocolate shells are carried on conveyer chain 1 passed a heating device 3 to melt the edges of the shells. Above chain 1 are a preferably metal endless belt 4 and a preferably plastic endless belt 5, the latter having impressions 6 in the form of a bottom or lid 7 with bevels 7a so that together the belts form moulds. Belts 1, 4 and 5 are all driven by motor 9 through belts 10, 11 so that adjacent runs . 1a, 4a of belts 1 run in the same direction and adjacent runs 4b, 5a of belts 4, 5 run in the same direction f<SP>2</SP>. A pourer 12 deposits melted chocolate into moulds 6 which pass over a vibrator 14 and through a chilling passage 15. In operation, the lids which adhere to conveyer 4, are carried round and deposited on top of the filled shells where the bevelled edges adhere to the softened edges of the shells after which the finished chocolates are cooled. In this operation, the conveyers are driven continuously but the drive is intermittent in a modification, Fig. 7. Parallel conveyer chains 21, 22 support plates 23, 24, carrying respectively the shells and lid moulds, and sliding on guides 25, 26 which may be raised vertically by mechanical or hydraulic means, e.g. by a cam-shaft 27, 28 acting on the bases of sliding columns 29, 30. A carriage 31 above conveyers 21, 22 moves on guides 32 between stops 33a, 33b and carries, on its under face, suction nozzles connected to a vacuum pipe which pick up the lids from plate 24 and deposit them on the shells on plate 25.
Patent GB-220889-A (GB)
Abstract: 220,889. Wilmot, G. W., and Blatch, F. H. Feb. 4, 1924. Check lift valves.- In a jig for washing coal, ores, &c in which a reciprocat.- ing piston-like structure provided with valves is arranged in a chamber beneath a stationary jig pan, the valve mechanism comprises plates 82 formed with longitudinal slots 98 over which are guided longitudinal tubular members 104.
Patent GB-660443-A (GB)
Title: Improvements relating to spring suspensions of vehicles
Inventor: BACHE JOHN KENNETH
IPC: B60G11/18
Filed: 1949-08-26
Abstract: 660,443. Laminated torsion bars; roadvehicle spring-suspensions. SALTER & CO., Ltd., G. Sept. 4, 1950. [Aug. 26, 1949] No. 22165/49. Classes 108(ii) and 108(iii). In a vehicle suspension of the kind in which an individual wheel is independently sprung by being connected to the chassis frame 2 by means of two vertically-spaced parallel motion links at least one 3 of which is a forked or wishbone link, a laminated torsion bar 4 extends between the arms 3a of the wishbone link in the line of its turning axis and is fixed to the chassis frame at an intermediate point in its length and to the arms of the link at its opposite ends. The connection of the bar 4 to the frame is by the clamping action of angle-sectioned members 5, 5 drawn together by the action of bolts 7 and parts 6, 6a. Each arm 3a is bolted at 15 to a bush 9 rotatable within a bearing housing 11 rigid with the chassis frame 2. The bush 9 has a hole therethrough of rectangular cross-section corresponding to that of the bar 4. In a modification, Figs. 1, 3, (not shown), the arms 3a are bolted to the bushes 9 inwardly of the housings 11 which axe closed by a cover plate on their respective outer faces. In a further modification, Figs. 7, 8, (not shown), in which both of the verticallyspaced links are forked, and one or both of which may be provided with a laminated torsion bar according to the invention, the bar or bars 4 are concealed within a box-shaped vertically-extending chassis frame member. The bearing housings 11 are bolted to the outer end-faces of the box-shaped member, the ends of the torsion bar 4 extending therethrough. The bar 4 is composed of leaves which may be in close contact or may be spaced apart by distance pieces located at its ends and middle. According to the Provisional Specification, the bearings for the arms 3a may be of ball or other antifriction type, or may comprise rubber bushings.
Patent GB-185014-A (GB)
Title: Improvements in building blocks
IPC: E04B2/10
Filed: 1921-08-22
Abstract: 185,014. Bonhardi, A. Aug. 22, 1921. Building - blocks, special shapes of.- Building - blocks of the kind formed with oblique parallel abutting surfaces and bonded by reversal are provided at two diagonally opposite corners with grooves 2 adapted to accommodate reinforcing-rods 3 when assembled and at the remaining corners with projections 2<1> which serve to cover the reinforcing-rods.
Patent GB-441700-A (GB)
Title: Improvements in stocking suspender clasp devices
IPC: A41F11/04
Filed: 1934-07-31
Abstract: 441,700. Suspender clasps. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. July 31, 1934, No. 22254. [Class 43] [See also Group XXV] The button-carrying tab 4 of a suspender fitting is secured to the bar 1<a> of the loop 1 of the fitting by folding the end of the band over the bar and securing it by a metal plate 5 which is bent around the folded band and the bar and clenched down on the band. The plate may be formed with projections or serrations to engage the band. The band of a suspender of the kind described in Specification 354,655, [Class XXV], may be secured in this way to a loop or to arms formed on a buckle or clip adapted to be secured to a corset. In the latter case, a second plate 14, Fig. 10, is bent over the arms 13 of the clip 9 before the band 6 is folded over the arms. Specifications 21321/08, 23633/11, 115,298, [all in Class 44], and 367,289 also are referred to.
Patent GB-1163092-A (GB)
Title: Production of Hexenes
Inventor: GREBBELL JOHN
IPC: C07C2/24
Filed: 1967-04-21
Abstract: 1,163,092. Dimerisation catalysts. BRITISH PETROLEUM CO. Ltd. 10 April, 1968 [21 April, 1967 (2); 15 May, 1967], Nos. 18396/67, 18398/67 and 22321/67. Heading B1E. [Also in Division C5] An olefin co-dimerisation catalyst comprising elemental sodium or lithium dispersed on an anhydrous potassium compound (hydroxide, carbonate, silicate, sulphate or halide) is activated by treatment with either a C 3  or higher olefin or an olefin mixture different from that to be co-dimerised. Suitable activators are propylene, a mixtures of butenes, and a mixture of ethylene and an n-butene, for each of which different activating conditions of temperature, pressure and time are given. The catalyst may also be treated with hydrogen and/or have been prepared in the presence of hydrogen.
Patent GB-632537-A (GB)
Title: Improvements in dental hand-pieces
IPC: A61C1/14
Filed: 1947-08-12
Abstract: 632,537. Dental handpieces. BJORKLUND, G. E. Aug. 12, 1947, No. 22371. Convention date, Aug. 12, 1946. [Class 81(ii)] [Also in Group XXII] In a dental handpiece having a tapered socket 10 to receive the tapered shank 2 of the drill, a tightening mechanism is provided in the socket adapted to be engaged with the tail end of the drill when the latter is inserted, and a spring 27 acts on the tightening mechanism for retaining the drill shank tightly in the socket. The tightening mechanism comprises a hollow split sleeve 14 secured to the shaft 13 and formed with a number of spring jaws 16 provided with claws 17 adapted to engage a head 5 or the like at the tail end of the drill. The shaft 13 is axially displaced by means of an outer sleeve 24, against the action of the spring 27, so that the jaws 16 engage a conical boss 18 whereby they are opened to free the head 5 of the drill shank, the drill being ejected by means of a reduced portion 28 of the shaft 13. The drill is provided with projections 6 to engage driving slots 11 in the socket.
Patent GB-1177656-A (GB)
Title: Particle Board.
Inventor: BEST RAYMOND PHILIP
IPC: C08L97/02
Filed: 1966-05-19
Abstract: 1,177,656. Particle board. AIRSCREWWEYROC Ltd. and UNILEVER Ltd. 16 May, 1967 [19 May, 1966], No. 22396/66. Headings C3N and C3R. Particle board is made by a process in which a modified phenolic resin binder is acidified by the addition before curing to the board components of an acidifying agent sufficient to bring the resin pH to 3À5-8. The particles may be wood, sawdust, flax shives, or exfoliated vermiculite. The resin may be a phenol formaldehyde resole resin, in alkaline solution, some of the resole methylol groups having been reacted with a polyfunctional phenol, e.g. xylenol, metacresol or resorcinol. Acidifying agents may be HCOOH, CH 3 COOH, p-toluene- Sulphonic acid, H 3 P0 4 , NH 4 CI, or Al 2 (SO 4 ) 3 . The acidifying agent may be added to the particles before, during, or after mixing with the resin. The board may have density 38À3- 41-1 Ib./ft.<SP>3</SP>. The board may contain 7-10% solid resin by weight of dry wood, and 1 % paraffin wax.
Patent GB-1058931-A (GB)
Title: Improvements relating to the surfacing of decks and other floors
Inventor: ROBIN PETER HUTCHINSON
IPC: C08L63/00
Filed: 1963-06-06
Abstract: A method of surfacing a deck or other floor comprises providing it with a surfacing layer of epoxy resin, filler and hardener and a hydrocarbon oil having a specific gravity of at least 0.97 containing at least 75% of constituents boiling between 180 DEG  and 400 DEG C. The oil may be a tar distillate or a petroleum fraction. Suitable fillers include barytes and sand: pigments may also be included.  The composition may be applied by trowel.
Patent GB-225771-A (GB)
Abstract: 225,771. Milne, S. May 2, 1924. Crank linkages. - To vary the reciprocation of a slide g and rod g<2> driven from a constant speed shaft b in papermaking machines &c., a block d carried on an eccentric c or cam on the shaft engages a slot in a bush e rotated in a slide f sliding laterally in a slot in the slide g. The bush a carries lugs e<1> which slide in grooves in a disc j, which can be set by a handle k' to any angle within a range of 90‹ and locked in position by a nut m. The reciprocation of the rod g<2> varies from a maximum with the lugs e<1> in the position shown to zero when the lugs are vertical. Springs may be arranged in the slot ends.
Patent GB-1249803-A (GB)
Title: Improvements in or relating to hydraulic fluids
Inventor: KER ROBERT ALAN CAMERON
IPC: C10M107/32
Filed: 1969-05-02
Abstract: 1,249,803. Hydraulic fluids. CASTROL Ltd. 27 April, 1970 [2 May, 1969], No. 22587/69. Addition to 1,083,324. Heading C5F. Hydraulic fluids comprise a mixture of (A) where R 3  is C 2 -C 4  alkylene, R<SP>4</SP>, R<SP>5</SP>, R<SP>7</SP> and R<SP>8</SP> are each ethylene or propylene, R<SP>6</SP> and R<SP>9</SP> are each methyl or ethyl and p, q, r and s are integers such that the sum of the carbon atoms in all the groups R<SP>4</SP>, R<SP>5</SP>, R<SP>7</SP> and R<SP>8</SP> is 6-10 and such that if either s or t is zero the other is at least one and if either p or q is zero the other is at least one and (B) C 2 H 5 COO (R<SP>10</SP>O) l (R<SP>11</SP>O) m OCC 2 H 5  where R<SP>10</SP> and R<SP>11</SP> are each ethylene or propylene and I and m are integers such that the sum of the carbon atoms of all the groups R<SP>10</SP> and R<SP>11</SP> is 5-9. Specified compositions include a mixture of triethylene glycol diproprionate and esters of diethylene glycol monomethyl ether and a mixture of adipic, glutaric and succinic acids. The fluid may also contain polyglycols or ethers thereof, the reaction product of ammonia or an amine with an alkylene oxide, glycol/dibasic acid polyesters (examples given), complex esters, bis(3,4-epoxy-6-methyl-cyclohexylmethyl)- adipate, dibutylamine, benzotriazole, triphenyl phosphite.
Patent GB-1191017-A (GB)
Title: Improvements in Plural Beam Cathode Ray Tubes
IPC: H01J29/07
Filed: 1967-05-16
Abstract: 1,191,017. Special processes. GENERAL ELECTRIC CO. 16 May, 1967 [19 Aug., 1966], No. 22641/67. Heading B3T. [Also in Division H1] A doming die of type H or type V biradial contour is generated on a lathe for preparing a shadow mask for a colour TV cathode-ray display tube (see Division H1). The two types may each satisfy horizontal and vertical sweep requirements but produce a different geometry along the diagonals. In the type H biradial construction the cutting tool is swung about point O of distance R 4  from point M and along the major axis from the mask centre to point N as the mask die is rotated about the horizontal lathe axis. In the type V biradial construction, the cutting tool is swung about point O of distance R v  from point M along the arc MN of the minor axis as the mask die is rotated about the vertical lathe axis. The type H configuration is preferred when the major axis curvature is not a simple circular arc and the type V may be used when only lathes of minimal swing are available.
Patent GB-1435424-A (GB)
Title: Electrical connector for plate electrode
IPC: A61B5/274
Filed: 1974-05-21
Abstract: 1435424 Earthing connector MEDICAL PLASTICS Inc 21 May 1974 22680/74 Heading H2E To provide a current return path to earth from the body of a patient under electrical medical treatment, plate 10 comprising soft insulation covered with conductor 11 on one or both sides is earthed via connector 17 comprising integral insulated 26, 27 resilient jaws 18, 19, urged apart by spring 41, and lockable to the plate 10 by twin cams 34 on the flanks of lever 36. Threaded sleeve 32 screwed on fixed bolt 29, carrying lever 36 pivoted on a cross pin 38, provides adjustment so that raising lever end 37 (as in Fig. 3, not shown), takes cams just over dead centre to clamp securely to plate 10. Alternative embodiments replace the metal jaws by a metal-lined elastomeric block (Figs. 4-11, not shown). The cam arm may be replaced by a rotary arm turning a clamping nut (Figs. 4 and 5, not shown). The cam arm may also force a point through the panel into a base in the lower jaw to secure the panel in place (Fig. 10, not shown). A spring tab may then replace the cam arm (Figs. 8, 9, not shown), the jaws being biased to grip the plate, releasable by lifting the tab which simultaneously removes the pin from the panel.
Patent GB-696826-A (GB)
Title: Improvements in or relating to diesel engines
Inventor: GUTHRIE CHARLES GUTHRIE
IPC: F01M11/00
Filed: 1950-09-15
Abstract: 696,826. Pistons. M. E. P. CO., Ltd. Sept. 3, 1951, [Sept. 15, 1950], No. 22682/50. Class 122(i) A piston for a double acting two-cycle diesel engine wherein the parts of the main piston are bolted together, comprises a cover 15 for closing the nut housing groove 13 from the scavenging ports of the engine, the cover 15 being let into an annular recess in the body of the piston and having at least one bevelled edge 16 which fits into an under-cut groove 17 in the piston, and a locking ring 18 located in the recess and serving with the groove 17 to secure the cover 15 in the recess. The ring 18 is an inwardly y contracting ring and may be bevelled as shown or rectangular. The cover 15 comprises a plurality of parts which may be retained by an inwardly contracting ring 21 housed in a recess; the ends of the parts may have interlocking co-operating parts.
Patent GB-871444-A (GB)
Title: Improvements in or relating to lipstick or like containers
Inventor: CURTL PAUL
IPC: A45D40/18
Filed: 1959-07-02
Abstract: 871,444. Lipstick holders. LOUVRE S. A. July 2, 1959 No. 22716/59. Class 18. A lipstick or like cylindrical container having a flexible mirror 7 that can be pulled out for use through a slot 9 in the casing 1 is characterised in that a lining of soft material 11 is provided to gently press against the mirror 7 on its passage through the slot 9. Lugs 6 on the mirror 7 are secured by rivets 5 to an inner casing 3 having an aperture 8 through which the mirror passes. The casing 3 is rigidly connected to a holder knob 2 to which the outer casing 1 is rotatably connected by a flange 14 engaging in a groove on the knob. The mirror 7 is projected and retracted by relative rotation of the casings 1, 3. The material 11 may be soft reindeer leather. The lipstick is held in a casing. 13 secured to a knob 12.