baber/WOPTO huggingface dataset:
Patent GB-284298-A (GB)
Title: Improvements relating to the manufacture of cellulose esters
IPC: C08B3/22
Filed: 1928-01-27
Abstract: 284,298. I. G. Farbenindustrie Akt.- Ges. Jan. 27, 1927, [Convention date]. Cellulose carboxylates.-Relates to the treat ment of insoluble or sparingly-soluble cellulose or hydrocellulose esters of higher fatty acids pre pared by reaction between cellulose and an acid chloride in the presence of pyridine. quinoline, and like base, for the purpose of obtaining products which dissolve in the usual organic solvents to give solutions that flow well and may be worked up into soft and elastic films. The cellulose esters in question are treated in a liquid medium and at a high temperature with an acid, an acid anhydride or a salt of a strong acid with a feeble base. The liquid medium may be a solvent for the cellulose ester or for the soluble ester obtained as the result of the treatment; and in some case it may even be the acid or acid anhydride used as the active reagent. The development of the solubilties depends on the concentration of the acid &c. employed, and also on the temperature to which the mixture is heated, it being necessary in some case to exceed a critical temperature before any appreciable change in solubility occurs, for example, with trichloracetic acid and pyridine hydrochloride a temperature of at least 140‹ C. is necessary. In examples, cellulose tristearate is moistened with tetrachlorethane, and after the addition of trichloracetic acid, heated to 145‹ C.; cellulose trilaurate is moisted with tetrachlorethane, pyridine hydrochloride added, and the mixture heated to 145‹ C.; cellulose tristearate is moistened with toluene, ferric chloride added, and the mixture heated to 90-100‹ C.; cellulose dipalmitate is dissolved in benzene, and to the solution is added aluminium chloride, zinc chloride, ferric chloride, pyridine hydrochloride, trichloracetic acid, benzene-sulphonic acid or sulphuric acid, after which the solution is heated to 80-145‹ C.; cellulose trilaurate is dissolved in lauric anhydride and heated to 200‹ C. The esters are precipitated in flocculent form by pouring the solutions into methyl or ethyl alcohol, or acetone. The process may be applied to the cellulose mono-esters of the higher fatty acids.
Patent GB-1367715-A (GB)
Title: Method of and apparatus for measuring angular acceleration
IPC: G01P3/487
Filed: 1972-01-20
Abstract: 1367715 Anti-skid systems ALFRED TEVES GmbH 20 Jan 1972 [25 Jan 1971] 2750/72 Heading F2F [Also in Division G1] The angular acceleration of a shaft 12 (Fig. 4) is obtained from the output voltages U 1 , U 2  of two Hall plate elements 9a, 10a mounted perpendicularly so as to be affected by a magnet system 101 driven by the shaft 12. The voltages U 1 , U 2  are 90 degrees displaced sine waves and are combined in a logic circuit 1 to give an output signal proportional to the angular acceleration, which may be used to control a brake system 22 associated with a wheel 21 mounted on shafts 12. The Hall plate elements may alternatively be magnetic resistive elements.
Patent GB-964114-A (GB)
Title: Improvements in or relating to underwater breathing apparatus
Inventor: JONES VICTOR DONALD
IPC: B63C11/16
Filed: 1962-01-25
Abstract: 964,114. Respiratory appliances. NORMALAIR Ltd. March 25, 1963 [Jan. 25, 1962], No. 2772/62. Heading A5T. [Also in Division F2] An underwater breathing apparatus comprising a high-pressure source of breathable gas, a demand regulator and a snorkel tube, has a shut-off valve between the source and the regulator in a position readily accessible to the user, this valve being additional to the normal stop valve of the gas source. The air supply is stored in a cylinder 11, Fig. 1, provided with its customary stop valve and this is connected through a flexible tube 13 and the shut-off valve 15 to the pressure regulator 14 for supply to the face mask 16. The mask also carries a pivotally adjustable breathing tube 17, having a stop cock 18, for use when the user is on the surface. When the user rises to the surface after diving, he closes the valve 15 and opens valve 18 and there is no loss of high-pressure air from the tube 13. The valve 15 comprises two body sections 36, Fig. 2, and 22, the former carrying a valve member 42 which bears against a nylon seating 29 in the inlet section 22. These two sections may be separated, to allow the passage of gas through the central bore, by rotating a cap 59 which is associated with a sleeve 50. The body section 22 cannot move axially relative to the rotatable parts 59, 50, owing to a flange 23 engaged within an annular gap 62, but the sleeve 50 is threaded, at 54, on to the body section 36, so that the latter is moved axially according to the direction of rotation. Excessive slackening of the valve is prevented by a washer 47 moving within a recess 53. Specifications 775,314 and 898,211 are referred to.
Patent GB-1201922-A (GB)
Title: Improvements in or relating to heating systems
Inventor: CARR FREDERICK
IPC: F24D3/02
Filed: 1967-01-19
Abstract: 1,201,922. Central heating systems. SERVOTOMIC Ltd. 16 April. 1968 [19 Jan., 1967], No. 2862/67. Heading F4U. In a central heating system including a water heater and a pump for passing heated water to radiators, andin which the water pipes connected to the radiators have a bore diameter of less than 5 mm., water leaves the heater at about 300 F. and the control means of the system are such that the drop in water temperature around the circuit is at least 100 F., and preferably at least 200 F. The small bore pipes may directly connect the radiators to the heater, or may connect the radiators to headers located in a roof space, which headers are connected to the heater by larger bore pipes.
Patent GB-146553-A (GB)
Title: Improvements in or relating to file cutting machines
IPC: B23D73/00
Filed: 1919-02-06
Abstract: 146,553. James, R. J'. L., James, E. H., and James, J. Feb. 6, 1919. File cutting.-The force of the blow is varied by means of an auxiliary spring or springs 6 mounted on an extension of the hammer block and bearing on it with a pressure controlled by treadle linkage 7. Reference has been directed by the Comptroler to Specification 1699/89, [Class 61, Handtools &c.].
Patent GB-549097-A (GB)
Title: Improvements in or relating to cooling systems for internal combustion engines
IPC: F01P11/20
Filed: 1942-03-07
Abstract: 549,097. Cooling systems for internal combustion engines. BURRIDGE, A. P. W. March 7, 1942, No. 3001. [Class 64 (iii)] To prevent freezing in an engine cooling system, the water is drawn in frosty weather from the system into an auxiliary tank 21 by an electrically driven pump 24 and is returned by gravity through a valve 23, or, when the tank is below the engine, the water is withdrawn by gravity and returned by an electrically driven pump. The pump may be controlled by a float or thermally operated switch. The tank may be provided with an immersion heater.
Patent GB-365339-A (GB)
Title: Improvements in and relating to tear-off sketching, writing and scribbling pads or blocks
IPC: B42D5/00
Filed: 1931-01-30
Abstract: 365,339. Writing &c. pads. TURNER, G. C. and FULLER & MEAD, Ltd., 137, Borough High Street, London, Jan. 30, 1931, No. 3049. [Classes 16 and 146 (iii).] A tear-off writing, sketching, or like pad comprises a stiff base 1 to which paper sheets 2 are attached, binding strips 5 secured around two parallel edges of the base and paper sheets, perforations 4 in the paper sheets aligned with the upper inner edges of the binding strips, and means for securing the paper sheets along the bound edges. The base 1 may be of cardboard or millboard, and the paper sheets 2 may be secured to it by wire staples 3, by stitching or gumming, or by stitching and gumming. The binding strips 5 may be glued to the under surface of the base 1, the longitudinal edges of the paper sheets 2, and the narrow marginal layer 6 of the uppermost sheet of paper. A cover 7 may be gummed to the lower surface of the base 1, and a sheet of blotting paper 8 may be secured by the staples 3. A holder 9 for a pencil or pen, made from a piece of fabric, may be gummed along one edge of the block. The cover 7 may be a stiff member which can be folded back to form a strut to support the pad at an angle.
Patent GB-495106-A (GB)
Title: Improvements in and connected with door latches, catches and the like
IPC: E05B3/04
Filed: 1937-02-02
Abstract: 495,106. Attaching knobs to spindles. WEBB, P. T., and WEBB, C. P. Feb. 2, 1937, Nos. 3084, 3085, and 3086. Convention dates, Feb. 18, 1936, March 18, 1936, and July 13, 1936. [Class 44] A door knob, attached to a spindle by a gripping member disposed at an angle to the plane of rotation of the knob and having one end fixed to the knob and the other end frictionally engaging the spindle, has means independent of the gripping member engagement to retain the knob in the finger plate. The knob 16, Fig. 14, is attached to the spindle 13 by a gripping member 18 and is held in the finger plate 12 by the plate 53. The member 18, loosely pivoted to the plate 53, is held in engagement with the spindle either by integral resilient loops 20 or by a spring 56. A hole 48 in the finger plate allows an implement to actuate the end 55 of the member 18 in order to release the knob. Several forms of the member 18 are described and in one of these a V-shaped resilient member has one arm slid into a groove in the end of the knob 16 and the end of the other arm binding on the spindle. In this case, the knob is held in the finger plate by a washer held between the arm in the groove and the rear face of the finger plate. The second knob may be attached to the spindle in a similar manner, but in this case the independent attachment to the finger plate may be dispensed with. Fig. 1 shows two methods by means of which the second knob may be secured, in both cases a resilient member 18 being attached at one end to the outer edge of an insert 17 in the knob whilst the other end engages the spindle. The knob may be freed by lifting the inner end of the member 18 either by a wire 22 or by a tool inserted through a hole 24. Other forms of the resilient member 18 together with alternative means for lifting its inner end are described.
Patent GB-678353-A (GB)
Title: Improvements in or relating to electrical component assemblies such as dry rectifiers and condensers
Inventor: MARROW SIDNEY HUGHES
IPC: H01L25/07
Filed: 1951-02-08
Abstract: 678,353. Rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Feb. 8, 1951, No. 3099/51. Class 37. Dry plate rectifiers 1 or condenser plates are assembled in a tube 2 of insulating material closed by spring-metal washers 6 of slightly larger diameter than the diameter of the tube so that they become dished and resist withdrawal. The washers 6 may be slotted as in Fig. 2 to facilitate dishing. A spring 3 maintains the plates in close contact and leads 9 have heads 10 and pass through holes in the washers. The ends of the tube may be sealed with a cold-setting resin. Specifications 526,482 and 626,394 are referred to.
Patent GB-228910-A (GB)
Title: Device enabling invalid vehicles to clear the edges of sidewalks
IPC: B62B9/02
Filed: 1925-02-04
Abstract: 228,910. Borowski, E. J., and Viaud, C. Feb. 7, 1924, [Convention date]. Ramps mounted on wheel axles. - A device enabling invalids' chair carriages to mount and descend from kerbs of side-walks comprises a ramp plate pivotally connected to rods which are detachably clamped on the ends of a wheel axle. The plate is normally held up out of contact with the wheel by a suitable fastening, the release of which allows the plate to fall so as to be disposed in front of the wheel after the manner of a ramp, the plate being returned to its normal position after it is cleared by the wheel. The invention is described as applied to a threewheeled vehicle driven by a pivoted lever 4 which also controls the front steering wheel 2. The ramp for the front wheel comprises a plate 13 connected by pairs of rigid and resilient rods 11, 12 to clamps 9 carried by the wheel axle 6. The clamps 9, Fig. 8, comprise jaws drawn together by a spring 10 and having recesses forming a pair of apertures 22, 23 when the jaws are closed. Normally, the axle 6 occupies the apertures 22 and the plate is held clear of the wheel, but when the wheel commences to mount the plate, the axle is forced into apertures 23. The plate is provided with a non-slipping surface so that after the wheel has passed the kerb the plate is carried up through the forks 7 and is brought back into its normal position, with the axle in the apertures 22, by the engagement of a stud on the plate with a cam on the forks. The plate is held in the normal position bv a pivoted catch 16 operated through a cable 20 from a lever 21 on the lever 4. The rear wheels are provided with similar ramp-plates 24 which may be longer than the front plate 13 and provided with an additional stay 25a. The rea.r plates 24 are held in the normal position by transverse bolts operated by cables 30 from a hand lever on the lever 4 and each engaging a staple 33 carried by a radial arm 25 and having a curved extension 33a for guiding the bolts into position.
Patent GB-704086-A (GB)
Title: Improvements in safety guards for rag-tearing and like machines
Inventor: SMITH RONALD IRVINE
IPC: D01G11/04
Filed: 1951-02-09
Abstract: 704,086. Machinery guards. WALKER & SMITH, BATLEY, Ltd. Feb. 7, 1952 [Feb. 9, 1951], No. 3206/51. Class 80 (4) A rectangular guard 1 of mesh or other form is pivotally suspended over the feed apron 3 of a rag-tearing or like machine, parallel with the feed rollers 4, and co-operates with a limit switch 11 controlling the rollers and/or the swift. The guard 1 is pivoted at 9 to a pair of links 5 which are pivoted to pillars 6 removably or fixedly carried by brackets 7. The brackets may be adjustable on the machine frame and the pillars may be adjusted in the brackets. The links 5 rest on stops 8 so that the guard may have a swinging or rising movement. If the guard is moved more than a predetermined amount the switch 11 is operated by a projection on the guard or by a swinging lever 13 whose pivot is linked to the guard. If an independent feed roller motor is employed the switch 11 may switch it off, reverse it or operate a clutch, and if the motor is reversed it may be aranged to be switched off after a predetermined period. If the rollers are driven from the swift drive the switch 11 may open a clutch and/or switch off the swift motor. Braking means for the rollers and/or swift may be provided. In a modification, a guard 1a, Fig. 4, comprises a grid of curved rods pivoted about a fixed axis, and the pivot 14 is linked to a lever 16 operating a limit switch when the guard is pushed towards the feed rollers. Quick release means 19 for the pillars 6 facilitate removal of the whole guard. Specification 695,983, [Group IX], is referred to.
Patent GB-273653-A (GB)
Title: Improvements in signs
IPC: G09F13/14
Filed: 1927-02-04
Abstract: 273,653. S÷lling, S. July 3, 1926, [Convention date]. Name - plates, letters, numerals, and the like.-In signs bearing letters &c. which are illuminated bv a centrally disposed lamp the light from which is reflected mainly in a direction parallel to the axis of the sign c, the illuminant is placed close to the sign a and the letters &c. are made from light-reflecting zigzag, undular, or similarly shaped metal sheet &c. having parallel unbroken crests, each tangential to a circle about the lamp c, and the reflecting faces of the waves are towards the lamp. The lamp is screened from direct observation, and the sign surface may be plane, conical, or concave, and be formed of fabric or wickerwork. The rim b of the sign is a light-reflecting conical surface making an angle of about 45‹ with the axis of the sign.
Patent GB-1211833-A (GB)
Title: Process for the production of an instant wheat farina product
Inventor: HYLDON ROY GODFREY
IPC: A23L29/238
Filed: 1969-01-20
Abstract: 1,211,833. Wheat farina. QUAKER OATS CO. 20 Jan., 1969, No. 3235/69. Heading A2B. An instant wheat farina product, which can be reconstituted for eating by simply adding water and mixing, without any cooking step, is prepared by denaturing wheat farina by heat-moisture treatment, mixing 0.1-10 parts by weight of a thickening agent which is capable of hydrating rapidly with water, is edible, and is not completely degraded by highly ionic substances, and 50-300 parts of water with 90-99.0 parts of the denatured farina, cooking this mixture by forming it into a thin sheet on an internally heated rotating drum dryer, the sheet being such that if it had a water content of 8% it would have a thickness of 0.010-0.025 inches, the cooking being sufficient to reduce the water content to below 10%, and comminuting the cooked mixture to give the desired product. The preferred thickening agents are polysaccharide gums, especially carboxymethyl cellulose, guar gum, and sodium alginate.
Patent GB-396440-A (GB)
Title: Improved method for the electro-acoustical reproduction of oscillations
IPC: H04R9/04
Filed: 1932-02-04
Abstract: 396,440. Sound-reproducing systems and apparatus. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. Feb. 4, 1932, No. 3279. Convention date, Feb. 12, 1931. [Class 40 (iv).] In a sound-reproducing system embodying a loud-speaker or the like which is so constructed that the diaphragm or equivalerit cannot radiate undesired low-frequency vibrations (such as those which may arise from supply mains), the vibratory system of the sound reproducer, e.g. the moving coil together with the diaphragm, is made with a natural frequency such that it does not respond to the undesired oscillations. Alternatively, such oscillations are withheld from the loud-speaker by the use of a suitably designed amplifier or filter circuit through which the loud-speaker is supplied. By these means, the extraneous low-frequency vibrations are prevented from detrimentally modulating the sound vibrations which the loud-speakeris capable of radiating. The Figure shows an example of a moving coil loudspeaker constructed in accordance with the invention. Two iron spiders 1 are secured to the central polepiece 7, which has slots with which the arms of the spiders are aligned. The ends of the spiders are bent to form opposed portions 11, which are connected by bridges 2 on which the coil 3 is mounted, and which also support the diaphragm 8. The material and dimensions of the spiders are so selected that the moving system has a. natural frequency in virtue of which it responds only to those frequencies that can be radiated as sound. This natural frequency is preferably just below the lower limit (e.g. 100 cycles per second) of the band of frequencies radiated by the diaphragm.
Patent GB-1318233-A (GB)
Title: Data processing systems
Inventor: FABER ULBE
IPC: G06F15/78
Filed: 1970-05-06
Abstract: 1318233 Data processing BURROUGHS CORP 6 May 1970 [19 May 1969] 3281/73 Divided out of 1318231 Heading G4A The subject matter of this specification is identical with that of the parent Specification 1,318,231 but the claims relate to a system including a command memory storing operational commands and a control memory storing sets of control signals which implement particular ones of the operational commands, the arrangement being such that in response to a first type of operational command the relevant set of control signals is retrieved from the control memory to condition the operation of the system, whereas in response to a second type of operational command the command itself conditions the operation of the system. Specifications 1,318,232 and 1,318,234 are also referred to.
Patent GB-363538-A (GB)
Title: An improved railway rail joint
IPC: E01B11/32
Filed: 1931-02-02
Abstract: 363,538. Railway joints. KÍNIG, A., 50, Margaretenstrasse, Friedrichshafen-on- Bodensee, Germany. Feb. 2, 1931, No. 3297. Convention date, Feb. 5, 1930. [Class 104 (ii).] A rail joint comprises an expansible hollow member 1 provided with a number of gaps 2 by cutting it on a spiral line. Bending of the member is prevented by an interior bar 5 provided with slots 6, 7 engaging the ends of the rails 3, 4 and fixed by fishplates 8 dovetailed to the member 1.
Patent GB-285009-A (GB)
Title: Improvements in caps for electric lamps and the like
IPC: H01J9/34
Filed: 1928-02-02
Abstract: 285,009. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elek. trische Gl³hlampen). Feb. 8, 1927, [Convention date]. Caps are provided with a heat-resisting coating which protects them from oxidation. It may be applied before the caps are cemented to the bulbs, and in this case the caps may be raised to a higher temperature during the cement-baking operation, thereby shortening the time required. The coating may consist of any inorganic substance capable of withstanding a temperature of 220‹ C., e.g. water glass, or borax and sodiumammonium phosphate. To facilitate soldering the leading-in wires to the coated caps, rotating steel brushes, grinding-discs, or brushes soalced with etching-liquids, may be arranged in the machine to clear the soldering points. Ammonium bifluoride may be used for this purpose. The etching material may be incorporated, alone or mixed with a flux, in soldering-wire.
Patent GB-215424-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/38
Filed: 1923-02-05
Abstract: 215,424. Daubney, G. A., and French, E. D. Feb. 5, 1923. Condensers.-The fixed plates 7 of a variable condenser are connected to contact studs 1 on an adjustable switch, by means of which the number of effective plates in the condenser can be varied. In the form shown, the studs 1 are arranged semicircularly on the top plate 4 of the condenser, and co-operate with a conducting segment 15 on the underside of a disc 14 rotatably mounted on the spindle 15 carrying the movable plates of the condenser. The fixed plates are mounted on ebonite rods and spaced apart by ebonite washers, each plate being connected to a separate stud. Spring means are provided for maintaining the segment 15 in engagement with the studs. The condenser is mounted in a cylindrical casing 21. The switch may be mounted on the side of the condenser or may be detached from the condenser.
Patent GB-534429-A (GB)
Title: Uncurling guide for sewing machines
IPC: D05B27/18
Filed: 1940-02-22
Abstract: 534,429. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Feb. 22. 1940, No. 3321. [Class 112] An uncurling guide for a scale pan type sewing-machine comprises a central guiding plate 27 and two uncurlers 28, 29 pivoted near the pivot of the plate 27 on pins passing through bores 32, 33 and bores in crossbars 34, 35. The uncurlers are pressed on to the plate 27 by a spring 38 which is threaded through a hole 39 in the plate 27 and at its ends enters holes 40 in the uncurlers, thereby applying the spring pressure at points between the pivots and the operative parts of the uncurlers. An edge guide is provided by small thimbles 42 which enter holes 44, 45 in the uncurlers.
Patent GB-800677-A (GB)
Title: Valve mechanism
IPC: F15B13/04
Filed: 1956-02-02
Abstract: 800,677. Valves. BENDIX AVIATION CORPORATION. Feb. 2, 1956 [March 15, 1955], No. 3343/56. Class 135. A valve mechanism controlling a doubleacting, fluid-pressure motor actuating the change-speed mechanism of an automotive vehicle, comprises a casing 18, having a connection 16 with the engine intake manifold, a connection 96 with the atmosphere and chambers 28, 32 communicating with opposite ends of the motor. On movement of a cable 82 by the driver, a pair of links 76 connected to the cable end fitting 80 by a pin 74 are rotated about a fixed pin 64 on which a lever 60 interconnecting a pair of spring-loaded shuttle lift valves 52, 54 is fulcrumed. Tension springs 70 connected between the pin 74 and the lever 60 on movement of the cable pass from one side of the fulcrum to the other to simultaneously operate the valves with a snap action, to connect one of the chambers 28, 32 to the intake manifold and the other to the atmosphere.