baber/WOPTO huggingface dataset:
Patent GB-605186-A (GB)
Title: Improvements in or relating to polyhydric phenol-aldehyde resins used as adhesives in bonding plywood and the like
IPC: C08G8/22
Filed: 1944-05-09
Abstract: A solid, substantially anhydrous, resinous composition, adapted on mixture with a suitable neutral solvent to give a cold setting adhesive suitable for laminating wood &c. veneers, comprises a resorcinol-formaldehyde resin (having a pH of from 3-6, made by condensing resorcinol and formaldehyde in the proportions of 1 mol. resorcinol to less than 1 mol. formaldehyde and dehydrating the resin under vacuum), paraformaldehyde, and a pH modifying agent which in the presence of the solvent adjusts the pH of the adhesive to above 6 or below 3.  In examples: (A) an anhydrous resin of the desired pH is prepared by reacting together 3500 gs. resorcinol and 1750 gs. 37 per cent formaldehyde, only 750 gs. formaldehyde being initially reacted with the resorcinol and the remainder added gradually, the product being then dehydrated.  (B) The dry adhesive mixture is then made up by mixing 1000 gs. resin (A), 200 gs. walnut flour, 125 gs. paraformaldehyde and 20 gs. sodium carbonate.  (C) The adhesive solution is made by dissolving 100 gs. (B) in 20 gs. water and 40-50 gs. alcohol.  The water may be replaced by other solvents, e.g. glycols, cellosolves, carbitols.  pH modifying agents include the usual acids and alkalis specifically solid oxalic, citric, tartaric sulphamic, boric acids, aluminium chloride or ammonium oxalate.  The following fillers may also be used: barium sulphate, powdered slate, iron oxide, apricot shell flour, wood flour, protein meals. Wetting agents, e.g. Aerosol O.T. may be added.  Specifications 605,187 and 613,106 are referred to.
Patent GB-632224-A (GB)
Title: Mixer circuit
IPC: H03D7/00
Filed: 1947-04-01
Abstract: 632,224. Mixing signals. STANDARD TELEPHONES & CABLES, Ltd. April 1, 1947, No. 8886. Convention date, Dec. 8, 1945. [Class 40 (iv)] [Also in Group XL (c)] In a mixer circuit, separate signals are applied through cathode followers to amplifiers having a common load, the potential across which is proportional to the sum of the signal voltages. As shown, signals from coaxial input connectors 1, 2 are applied to the control grids of cathode followers 5, 6, through coupling condensers 9, 10. Adjustable tappings 21, 22 connect a proportion of the voltages across the cathode resitors 19, 20 to the control grids of mixer amplifiers 24, 25 through coupling condensers 28, 30. The mixer amplifiers have cathode resistors 36, 37 producing negative feed-back and a common anode load resistance 23 connected by a variable tapping to a coupling condenser 39 and output connector 40. The cathode follower anode circuit includes decoupling resistors 11, 13 and shunt capacities 12, 14, to reduce distortion and intermodulation. Valves other than pentodes may be used.
Patent GB-218006-A (GB)
Title: A new or improved means for electrically indicating and recording weighments
IPC: G01G23/18
Filed: 1923-03-29
Abstract: 218,006. Pooley & Son, Ltd., H., and Dobson, J. March 29, 1923. Indicating-mechanism.-The readings of a weighing machine are indicated electrically when the circuit balance is disturbed by the variation of an inductance which is operated by the machine. The weighing platform 3, which moves against the action of the pendulum 8, operates through a rod 4, the lever 5 which carries a primary coil 12 and moves under the action of a dashpot 11. The coil 12 is connected in series with a source of alternating current 31 and a primary coil 14 located at the receiver. The secondary coils 13, 16 are connected respectively to solenoids 28, 28a having cores 27, 27<a> carried by a beam 26, which has a pointer 29 moving over a scale. The secondary coil 16 is mounted on an arm 17, which is pivoted at 18 and has a rack 19 engaging with a pinion 20 on the shaft of the weight indicator pointer 21. When a weight is on the platform 3, the balance of the secondary circuits is disturbed and the pointer 29 is deflected. Balance is restored on adjustment of the coil 16 by manual operation of the pointer 21, the position of which indicates on a dial 23 the weight on the platform 3. The weight may be recorded on a tape or ticket by rotatable type discs or slides.
Patent GB-1217985-A (GB)
Title: Fluid pressure control valve arrangement
IPC: B60T13/14
Filed: 1969-02-19
Abstract: 1,217,985. Fluid pressure brakes. BENDIX CORP. 19 Feb., 1969 [6 March, 1968], No. 8943/69. Heading F2F. A split power control valve comprises at least two valves each of which having a control member 18, 19. Each control member 18, 19 projects into a recess 32, 33 of a common input control element 28, an elastomeric block 34, 35 being interposed between each control member 18, 19 and the base of the respective recess. In the construction shown the blocks 34, 35 are substantially frusto-conical discs. The ends of the control members 18, 19 which project into the recesses are of frusto-conical form such that pivoting movement is possible between the control members 18, 19 and the control element 28.
Patent GB-595087-A (GB)
Title: Improvements in or relating to hydrostatic apparatus
IPC: F03B17/02
Filed: 1945-04-11
Abstract: 595,087. Buoyancy motors. WILLIAMS, D. H. , April 11, 1945, No. 8944. [Class 69 (i)] Hydrostatic apparatus comprises a revolubly mounted wheel 4 which is completely or partially immersed in liquid and provided with circumferentially spaced cylinders 2, one end of each of which is open. Each cylinder contains a piston 3, oppositely disposed pistons being connected together. An electric motor 1, by means of mechanism 22 and 31, causes a ring 20 to oscillate horizontally, and this ring causes displacement of rollers 25, which are connected to the paired pistons 3 by rods 26, 27 and rack and pinions 28 which turn eccentrics loosely mounted on a shaft 8, these eccentrics moving linkages 23, quadrants 14 and linkages 15 of the respective pairs of pistons, so causing expansion and contraction of the cylinder volume. The expanded cylinders exert a buoyant effect causing the wheel to rotate and turn the shaft 8. As each piston arrives at the top position, it trips a switch 24 causing the motor to reverse with repetition of the cycle. Air is led into and out of each cylinder at normal atmospheric pressure to prevent compression and vacuum effects on expanding and contracting the cylinder volume.
Patent GB-144425-A (GB)
Title: Improvements in the segments of cylindrical combs and brushes for combing machines
IPC: D01G19/10
Filed: 1919-04-09
Abstract: 144,425. Sig, C. April 9, 1919. Wire brushes; stocks. -In cylindrical brushes for use in combing-machines, the wire teeth mounted on a flexible foundation are secured to shells attached to removable segments mounted on the brush shaft. The brush body consists of two half segments 1', upon each of which is mounted a half shell 5<1>, to which the flexible foundation 2' is secured by clips &c. 4'.
Patent GB-292287-A (GB)
Title: Improvements in and relating to change speed gears
IPC: F16H29/08
Filed: 1927-04-01
Abstract: 292,287. Gheens, A. April1,1927. Variable-speed ratchet gearing comprises a twoarmed frame 5 which rocks on a shaft 3 being oscillat-ed by links 6, 6' from cranks 4, 4<1> which are 180‹ apart on a driving-shaft 1. Upon the arms of the frame 5 are slidably supported the pivots 8, 8<1> of links 9, 9<1> which oscillate arms 11, 11<1> which drive a shaft 2 in one direction. The speed of the shaft 2 is varied by moving the sliders 8, 8<1> on the arms, and this is done by turning a screw 12 which is operated by a rack 14 sliding in a hollow in the pivot shaft 3. A governor on the shaft 1 may control the rack 14.
Patent GB-753049-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/512
Filed: 1954-03-29
Abstract: 753,049. Hydraulic shock-absorbers. FORD MOTOR CO., Ltd. March 29, 1954 [March 30, 1953], No. 9143/54. Class 108 (3). [Also in Group XXIX] A direct acting hydraulic shock-absorber comprises a piston C having a valve 53 urged by a spring 74 into engagement with a seat associated with a passage 51, and a temperatureresponsive device 57 arranged to vary the load on the spring 74. In Fig. 3 an abutment 69 of the spring 74 engages a plunger 66 which is slidable in a casing 63 against a mass 62 of rubber. The abutment 69 also carries a stem 68 upon which the valve 53 is slidable. The rubber 62 bears on an expansible pellet 61 contained in a casing 59 which projects from the lower face of the piston into the shock-absorber liquid. The pellet 61 is formed of copper and alkanes or other expansible binder material. In operation of the shock-absorber in a vehicle suspension on smooth roads at normal vehicle speed, the loading of the spring 74 remains at a predetermined minimum. On rougher roads or at a higher speed, the shock-absorber liquid warms up, and expansion of the pellet 61 results in increased loading of the spring 74. On return to the normal working temperature of the liquid, a spring 71 retracts the abutment 69. In Fig. 4, flats are formed on an end portion of the stem 68 so that under smooth-ride low-speed conditions, a permanent passage is provided through the valve 53. When the shock-absorber liquid warms up, the stem 68 is projected until its full diameter closes the port in the valve 53. In a modified construction (Fig. 6, not shown), a spiral bi-metallic temperature-responsive element is connected between the stem 68 and a fixed part of the piston. The stem 68 is extended upwardly, and has a threaded end which engages a threaded socket in the end-face of the piston-rod 27. Thus an increase in liquid temperature causes a rotation of the stem 68 by the bi-metallic element. This results in an axial movement of the stem 68, which increases the load of the spring 74.
Patent GB-410956-A (GB)
Title: Improvements in or relating to flotation processes
IPC: B03D1/01
Filed: 1933-03-27
Abstract: High molecular quaternary ammonium salts (i.e. those having a molecular weight above 150) are obtained by reacting a secondary or tertiary amine with a mono alkylsulphuric acid ester or with a mixture of a sulphonating agent and the corresponding alcohol. Aliphatic, cycloaliphatic, aromatic, aliphatic-aromatic or heterocyclic secondary or tertiary amines may be used, and sulphuric acid, sulphur trioxide and halogensulphonic acids are mentioned as sulphonating agents.  Lauryl pyridinium sulphate is employed in a flotation process in an example.  Specification 392,763 is referred to.ALSO:Liquids used in flotation processes are improved by the addition of high molecular quaternary ammonium salts (i.e. those having a molecular weight above 150) obtained by reacting a secondary or tertiary amine with a monoalkylsulphuric ester or a salt thereof or with a mixture of a sulphonating agent and the corresponding alcohol.  In an example, 0,12 m.m. quartz grains are subjected to flotation, using 400 gms. lauryl pyridinium sulphate per metric ton of material.  The lauryl pyridinium sulphate is prepared by reacting pyridine with a mixture of dodecyl alcohol and sulphuric acid.  The flotation of coal and the clarification of mineral sludges are referred to, and the quaternary ammonium salts may be used as positively charging "collectors," "foamers" or "collector-foamers." Specification 392,763, [Group IV], is referred to.
Patent GB-111256-A (GB)
Title: Improvements in and connected with Sparking Plugs for Ignition Purposes.
Inventor: GUINNESS KENELM EDWARD LEE
IPC: H01T13/38
Filed: 1917-06-28
Abstract: 111,256. Guinness, K. E. L. June 28, 1917. Sparking-plugs.-The central electrode 13 may be removed for cleaning purposes from a surrounding metal tube 8, a flange 9 on which is clamped by a gland nut 12 between mica washers 6, 11. The outer portion of the tube 8 is finned and washers 10 may be interposed between the fins and the gland nut 12.
Patent GB-721558-A (GB)
Title: Improvements relating to jet nozzles for jet propulsion units
Inventor: ELLIOTT CYRIL ALBERT
IPC: F02K1/11
Filed: 1952-04-10
Abstract: 721,558. Hinges. ROLLS-ROYCE, Ltd. March 25, 1953 [April 10, 1952], No. 9325/52. Class 65 (2). [Also in Group XXVI] The pivot bearings of the pivoted nozzle segments of a variable area jet propulsion nozzle are made free for movement axially of the jet pipe to counteract the effects of differential expansion. In the embodiment shown, Fig. 2, the nozzle segments 16, which are formed of half-zones of a sphere as described in Specification 598,183, [Group XXVI], and hollow as described in Specification 640,428, are pivoted on pivot bearings 17 mounted in a sheet metal skin 10D surrounding the sheet metal wall 10A of the jet pipe. To maintain the seal between the surfaces 20, 21 at all times, the pivot 17 bearing is slidable relative to the outer skin 10D. The outer skin 10D supports two diametrically opposite sockets 25 each of which has a rectangular aperture 26 which receives a square sectioned portion of a trunnion 27 so that the trunnion is free for movement axially of the jet pipe. The trunnion has a flange 27A and a cylindrical extension 28 formed with a land 29. A loose ring 30 is clamped on to the extension 28 by a bolt 31 held by a nut 34 and washer 35. The nozzle segments 16 are each provided with a part annular member 32 which bears on the land 29 and has axially extending flanges which engage a flange on the ring 30 and a loose ring 33 positioned by the flange 27A. In a modification, Figs. 4 and 5, the part annular members 32 are mounted between a flange 40A on the head of a bolt 40 and a flange 41A of a member 41 through which the trunnion is supported in the skin 10D. A cylindrical member 44 which spaces the bolt head from the member 41, is provided with a land 44A to support the members 32. Bearing rings 43 are also provided. The member 41 has a radius arm 45 to which is attached a pivot pin 47 rotatable in bushes 49 mounted on the casing 10D. When the member 41 rocks about the pivot pin 47, the trunnion as a whole moves substantially axially of the jet pipe. An abutment 55 and a stud 56 limit the amount of movement. Resilient means may be provided to load the pivot bearing to bring the sealing elements into engagement.
Patent GB-721774-A (GB)
Title: Improvements in or relating to casings, boxes and the like such as electrical fuseboard casings
Inventor: MASON ERIC
IPC: H02G3/16
Filed: 1952-04-15
Abstract: 721,774. Boxes. CANTIE SWITCHES, Ltd. April 9, 1953 [April 15, 1952], No. 9338/52. Class 18. [Also in Group XXXVI] A fuse-board casing or the like comprises a rectangular base 21 with integral bent-up ends 17, wing portions 17a of which are bent at 45 degrees to form flattened corners. Rivetted outwardly of each portion 17a is a separate corner-piece 11. Fig. 7, having a foot 26 with a hole 29 for a mounting screw, the foot being accommodated in the space made available by flattening the corner. Detachable side plates 19 are bolted to the corner-pieces. A lug 28 with a screw-threaded hole 30 is pressed outwardly of each corner-piece and where the casing is surface-mounted, eye-bolts 31, Fig. 3, are secured to the two lugs at one end of the box and receive hinge bolts 34 passed through brackets 33 secured to a lid 14, the lugs 28 at the other end of the box receiving securing screws 35 for the lid. Where the casing is flush-mounted, a mask is secured thereto by bolts which are received by the lugs 28, the lid in this case being hinged to the mask. The lid may be locked by a plate 37, Fig. 5, with a keyhole slot which is passed over the end of one of the screws 35 protruding through lug 28, the reduced portion of the slot being received in a reduced portion 35a of the screw. A padlock 39 is passed through the enlarged part of the slot to prevent removal of the plate.
Patent GB-174300-A (GB)
Title: Improvements in and relating to wind propelled mechanism
IPC: G09F19/02
Filed: 1921-03-29
Abstract: 174,300. Dunkelberger, M. S. March 29,1921. Wind-propelled toys.-A motor for driving toys comprises two standards mounted upon a base, one carrying an electric fan and the other a windpropelled mechanism, the distance apart of the standards being adjustable for varying the speed of the wind-propelled mechanism. Fig. 1 shows a boat 4, for window display purposes, to which an undulating motion is imparted by a wind motor 13. The current of air to drive the motor is generated by an electric fan 14, which is adjustable on the base 1 to vary the speed of the motor 13.
Patent GB-947602-A (GB)
Title: Compressible material for use in printing
IPC: B41N10/04
Filed: 1961-03-14
Abstract: 947,602. Cylinder blankets. W. R. GRACE & CO. March 14, 1961 [Nov. 18, 1960], No. 9369/61. Heading B6C. [Also in Division B5] A cylinder blanket comprises a highly porous felted fibrous sheet impregnated with a mixture of rubbery and resinous polymers, the impregnated sheet having a firmness such that a pressure of at least 10 pounds per square inch must be exerted on the sheet to effect an initial impression of 2 mils, and a residual porosity at 4 mils of at least 37%. Residual porosity is given as total volume of sheet minus volume of fibres and rubber divided by the total volume of sheet, all measured while the sheet is compressed by 4 mils. In one example, a 115 pound ream weight natural fibre paper containing 100% mercerized cotton linters and having an average density of about 4 was impregnated with nitrile rubber latex modified with melamine resin such that the combined weight of rubber and resin was 80% of the fibre weight. The impregnated sheet was hot calendered, coated with a nitrile rubber ink-transfer surface 0.004 inch thick and press cured to a final thickness of 0.027 inch. This unit was then coated on the back with a 0.002 inch layer of a pressure-sensitive adhesive based on an acrylonitrile rubber. Other examples are enumerated in the Specification. Specification 936,206 is referred to.
Patent GB-526839-A (GB)
Title: Process for the manufacture of conversion products of high molecular carbohydrates of the starch groups
IPC: D06P1/46
Filed: 1939-03-25
Abstract: 526,839. Dextrin. I.G. FARBENINDUSTRIE AKT.-GES. March 25, 1939, No. 9420. Convention date, March 26, 1938. [Class 121] Non-reducing, water-soluble dextrin preparations for use as sizes, textile-finishes and printing pastes are prepared by treating a carbohydrate of the starch group (starch, inulin, amyloses, British gum &c.) in solution or suspension in water or methyl alcohol with hydrogen together with a catalyst at 20-40 atmospheres and at 100-180‹C. till the material no longer reduces Fehling's solution.
Patent GB-102891-A (GB)
Title: Improvements in or relating to Machines for Mercerising Yarn.
Inventor: KILBURN BERTRAM EDWARD DUNBAR
IPC: D06B7/06
Filed: 1916-07-05
Abstract: 102,891. Rilburn, B. E. D., (Sulzer frÞres Soc. Anon.). July 5, 1916. Hank type.-In a machine for mercerizing yarn, shown in end elevation in Fig. 2 and in plan in Fig. 3, the rollers for the hanks are carried by a pivoted member which allows the rollers to be swung clear of their bearings, at the same time causing them to approach one another to enable the yarn to be removed. The machine comprises a base 1 having three uprights 2, 3, 4, the two outer of which form open bearings for the rollers 12, 13, the centre upright 3 having pivoted to it a forked member 9. The member 9 carries a fixed bearing 10 for the roller 12 and a slidable bearing 11 for the roller 13, the bearing 11 normally resting in the fork of the central one of three levers 16 attached to an axle 17. Attached to the member 9 is a curved rack 20 engaging a toothed wheel 20<a> driven by a chain 22 and sprocket 23, which turns with a wheel 25 gearing with a wheel 27. Rotation of the wheel 27 causes the rack 20 and member 9 to rise, carrying the rollers 12, 13 out of their bearings and at the same time causing them to approach one another by means of a curved member 47 attached to the lever 16 as shown in Fig. 2. The member 9 is locked, when in the horizontal position, by a pawl 40, which is operated by a projection 42 on a weighted lever 28 carrying a roller 31 in engagement with a disk 32 on a shaft 33, which is rotatable by means of gearing connected with the driving- pulleys 34, 64 as shown in Fig. 3. The disk 32 has a notch 41 which, when in engagement with the wheel 31, allows the wheel to drop and thus release the pawl 40 from the member 9. A second projection 44 on the lever 28 is at the same time raised and lifts the member 9 to bring the rack 20 into engagement with the pinion 20<a>. The roller 12 is rotated by gearing 50, 51, 53 and, when in its horizontal position, contacts with a pressure roller 48 the rotation of which tends to force the roller 12 into its bearings. The direction of rotation of the whole of the gearing is periodically reversed by means of two rollers 55, 56 on the wheel 54, Fig. 4. These rollers come alternately into contact with the two arms 58, 59 of a lever pivoted at 57 and connected by links 60, 61, 62 to a clutch, which is thus forced alternately to the right and left and keys the two oppositely-rotating loose pulleys 34, 64 alternately to the shaft of the pinion 27. When in the working position the roller 13 is given an oscillating movement by means of rods 65 attached to the levers 16 and to arms 66 carrying a roller 80, which contacts with a cam 69. The rods 65 are adjustable by wheels 67. When the member 9 is in its highest position and the hanks are being removed from the rollers, the lower end of the rack 20 rests upon a roller 45 pivoted in the lever 28. The roller 45 is removed from the rack by the operation of a cam 46 on the wheel 31. The lye tanks in which the hanks are treated are placed below the rollers 12, 13.
Patent GB-1503019-A (GB)
Title: Typewriting device
IPC: B41J1/34
Filed: 1975-03-07
Abstract: 1503019 Selective printing TOKYO JUKI KOGYO KK 7 March 1975 [8 March 1974] 9485/75 Heading B6F A printer has a character drum 8 comprised by cylinders A 1  to A n+1 , each cylinder bearing characters arranged in a helix having M turns. The drum 8 is mounted on a sleeve 6. When shaft 10 rotates gears 12, 7 rotate drum 8 faster than gears 11, 3 rotate sleeve 6. A pin 14 in groove 4 causes the sleeve 6 and drum 8 to move axially as they rotate. A bank of hammers 9 are located on the opposite side of record medium 14 which is intermittently fed. The line to be printed is spanned by n cylinders each with M print. M may equal four. The ratio of gears 3, 7, 11, 12 and the shape of groove 4 are chosen such that in one revolution of the sleeve 6 the drum 8 rotates six times. During the first four (i.e. M) revolutions the sleeve 6 and drum moves axially (leftwards as viewed) by one cylinder-width and in the next two revolutions returns to its start position.
Patent GB-534011-A (GB)
Title: Sewing machine
IPC: D05B71/00
Filed: 1939-08-22
Abstract: 534,011. Sewing-machines; oil-level indicators. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 22, 1939, No. 9641/40. Divided out of 533,958. [Class 112] [Also in Group XVIII] The oil-tight casing of a sewing-machine is equipped with an oil-heat radiator 228 and an oil sump level indicator 218. Oil is caught in the open ends of the tubes 235 and led by passages 238 to the bottom of the radiator and is returned to the casing by bores substantially at the level of the tubes 235. Oil passes from the radiator by pipe 244 to the main shaft bearings. The cover plate 230 is finned. The oil level indicator comprises a celluloid or other transparent plastic cover formed with an upright bulge 218 which connects the two bores 226, 227 in the casing. The cover is backed by a white reflecting disc 222 and is secured by a plate 219.