baber/WOPTO huggingface dataset:
Patent GB-461577-A (GB)
Title: Improvements in resilient struts for use more especially in connection with the landing wheels of aeroplanes
IPC: B64C25/60
Filed: 1935-10-15
Abstract: 461,577. Shock - absorbers; piston packing. RIBBESFORD CO., Ltd., ONIONS, J. H., and THORNHILL, P. W. Oct. 15, 1935, No. 28378. [Class 108 (iii)] [Also in Group XXVI] In a resilient strut particularly for aircraft and comprising telescopic cylinder and tubular plunger members 10, 14 enclosing a liquid, which on relative movement of the members is forced through one or more restricted passages to damp the movement, and a compressed gas which supports the normal axial load, the plunger head 16, Fig. 3, is fitted with packing rings 33, 34, 35 for example of rubber, the space 39 between two of which is connected with the interior of the plunger by one or more passages 40 terminating adjacent the edge of a vertically-movable, flutter-valve 44 which regulates the damping effect, so that according to the position of the valve the space 39 is in communication with whichever side of the plunger head is subject to the higher pressure, and the rings 34, 35 pressed into frictional contact with the cylinder 10. As shown in Fig. 1, the end 18 of the plunger 14 is turned inwardly and clamped in position by bolts 19. On extension of the device the valve 44 is pressed downwardly against a wall 42 and liquid flows only through a central aperture 45 in the valve and a constricted passage 46 in the wall while, on contraction, the valve is pressed upwardly against the clamping ring 20 and liquid flows freely through holes 43 in the wall 42 and through the valveaperture 45. Extension and contraction of the shock-absorber are limited respectively by a rubber &c. buffer 29 mounted on a distance tube 31, and by a similar buffer 28 resting on a plug 11 closing the end of cylinder 10. In a modification, Fig. 4, in order to prevent relative rotation of the plunger and cylinder, the inwardlyturned end 55 of the cylinder and the inner surface of a sleeve 66 mounted inside the cylinder are formed octagonal and co-operate with the similarly-formed plunger tube 14. The inwardly-turned end 59 of the plunger is clamped in position by a tubular bolt 60 and cap 63, the lower part of the cap serving as a housing for the flutter-valve 44. In this case, the valve chamber communicates with the space 39 through radial passages 67, an annular space 68, and passages 40. Compression of the device is limited by a sleeve 69, mounted on a resilient ring 71 in the plunger head, engaging a spacing tube 70. A freelymovable piston such as described in Specification 461,144 may separate the liquid and gas in the plunger tube 14. According to the Provisional Specification, in order to prevent relative rotation of the plunger and cylinder, the sleeve 56 or the tube 70 may be fixed to the cylinder and splined to the plunger, or, alternatively, a splined rod fixed to one end closure of the cylinder may engage splines formed in the plunger head.
Patent GB-1355875-A (GB)
Title: Devices for holding ring-shaped workpieces
IPC: B24B41/06
Filed: 1971-06-17
Abstract: 1355875 Work holders LIDKOPINGS MEKANISKA VERKSTADS AB 17 June 1971 [18 June 1970] 28550/71 Heading B3D A device, e.g. for holding a ballrace 29 or other ring-like member for grinding or polishing comprises two holding members 14, 40 for engagement with the workpiece 29 under fluid pressure, one of the members 40 being arranged to be driven, and a mandrel 24 for supporting the workpiece 29 by means of fluid pressure cushions. The members 14, 40 are freely supported by flanges 3, 32 pressurized fluid, e.g. water, coolant or air, being introduced through conduits 12, 13 and 39 to urge the members 14, 40 into engagement with the workpiece 29, while a further passage 28 feeds recesses 26, 27 defining the mandrel pressure cushions. A drive shaft 54 is connected to a part 50 screwed to the member 40 by a pin and slot connection 51, 52.
Patent GB-683007-A (GB)
Title: Improvements in or relating to processes for the preparation of inoculating materials for concentrated milk products and for making the lactose in concentrated milk products crystallize in a very fine state
Inventor: DE VRIES THEO RUDOLPH
IPC: C13K5/00
Filed: 1950-11-23
Abstract: Lactose is caused to crystallize in a very fine state from a concentrated milk product devoid of lactose crystals, e.g. sweetened condensed milk, by inoculating it with a mixture made by pulverizing a powder, comprising a water-soluble organic compound of high molecular weight and crystalline lactose, in a portion of the concentrated milk product, which may be super-saturated with lactose. The water-soluble organic compound may be gelatine, sodium alginate or carboxymethyl cellulose.  The powder may be obtained by causing a powder containing vitreous lactose, e.g. milk powder, to absorb water, as by spraying it with water, so that the lactose becomes crystalline.ALSO:Material which, on being inoculated into a concentrated milk product devoid of lactose crystals, e.g. sweetened condensed milk, causes lactose to crystallize in a very fine state, is made by pulverizing a powder, comprising a water-soluble organic compound of high molecular weight and crystalline lactose, in a portion of the concentrated milk product, which may be supersaturated with lactose.  The water-soluble organic compound may be gelatine, sodium alginate or carboxymethyl cellulose.  The powder may be obtained by causing a powder containing vitreous lactose, e.g. milk powder, to absorb water, as by spraying it with water, so that the lactose becomes crystalline.
Patent GB-1184459-A (GB)
Title: Improvements relating to Electromagnetic Relays
Inventor: ALLEN GRAHAM JOHN
IPC: H01H51/01
Filed: 1967-06-21
Abstract: 1,184,459. Magnetically held relays. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 29 May, 1968 [21 June, 1967], No. 28640/67. Heading H1N. An electromagnetic relay having separate operate and release windings is retained operated by a permanent magnet, and the latter is opposed on energization of the release winding which has a flux path parallel to that of the operate winding. The operate winding 7 is mounted on a core 3 which is slightly shorter than the combined core 2 and permanent magnet 4 parallel thereto. The armature 5 rocks on the yoke 1 and is biased away from the cores. On energization of the winding 7, in the direction shown, the armature 5 is attracted to the core 3 and moves to engage the magnet 4 which retains the armature after de-energization of the winding. The release winding 8 on the core 2 may be energized in opposition to the permanent magnet 4 to release the armature. When the armature is held in the attracted position, spurious energization of the winding 7 in either direction or of the winding 8 in reverse of its release direction will assist the permanent magnet in retaining the armature.
Patent GB-898388-A (GB)
Title: Improvements in and relating to the purification of caprolactam
Filed: 1960-08-18
Abstract: A process for the purification of caprolactam produced by the Beckmann rearrangement of cyclohexanone comprises the steps of refluxing substantially anhydrous caprolactam at pressures of about 5 to about 50 mm and at liquid temperatures of about 115 DEG C.-175 DEG C., while continually bubbling through the liquid caprolactam a gas inert to caprolactam and to the volatile base contained therein, condensing the refluxing caprolactam at about 20 DEG C.-100 DEG C, said reflux being continued until the caprolactam contains less than 25 ppm of volatile base calculated as ammonia, and then distilling the caprolactam at about 115 DEG C.-175 DEG C. and about 5 mm-50mm. Specified inert gases are nitrogen, neon, argon, xenon, carbon dioxide, methane and hydrogen.  About 0.1%-1.0% by weight of NaOH based on initial caprolactam is preferably added.  Impurities other than the volatile base are preferably removed first, e.g. by hydrogenation.
Patent GB-135505-A (GB)
Title: An Improved Adjusting Apparatus for the Fluted Rollers of Flax Breaking Machines.
Inventor: ETRICH IGNAZ
IPC: D01B1/22
Filed: 1919-11-20
Abstract: 135,505. Etrich, I. Aug. 21, 1916, [Convention date]. Breaking-apparatus. - In a flax-breaking machine, the bearings 1 of all the upper rollers are adjusted simultaneously by a common frame 3 acting on the bearings through springs 2, in such a manner that the distance between the rollers of the various pairs is maintained equal or in a predetermined ratio to the distance between the rollers at one end of the series. The frame is supported on bolts 4 working in threaded holes in the frame, and simultaneously rotated by worm gearing 6 from shafts 7 operated by the hand-wheel 9 and connected by bevel-gearing 8 and cross-shafts. The frame may be given a slight inclination to the plane of the axes of the lower fixed rollers, when the distance between the rollers in the various pairs decreases through the machine. The frame may be adjusted on stationary bolts by arranging the worm-wheels on nuts prevented from moving along the bolts relatively to the frame, or by cranks or eccentrics, or by toggle-levers.
Patent GB-966855-A (GB)
Title: Nonwoven fabric articles and their manufacture
IPC: A41C5/00
Filed: 1960-08-19
Abstract: A non-woven porous seamless shaped fabric article is formed by moulding to a predetermined shape a fluffy, carded sheet of initially unbonded interlaced mixed staple fibres, the moulded fibrous sheet being then compacted and unified into its stable final shape by simultaneous soft-pressing and heating e.g. to 250 DEG  to 450 DEG F. which effects mutual autogenous interbonding of thermoplastic binder fibres included in the sheet, all the fibres being thereafter coated and interbonded by a fibre sizing latex; said staple fibres having a length of one to two inches and including 30 to 50% by weight of unplasticized undrawn polyester fibres, said undrawn fibres being initially amorphous and thermoplastic but having been rendered crystalline during said heating.  The fibrous mixture also comprises unplasticized drawn polyester staple fibres in the proportion of 10% to 30% by weight and cellulose staple fibres such as viscose-rayon, cotton or ramie.  A suitable fibre-sizing latex is an aqueous carboxylic acrylate polymer latex dispersion containing a curing agent such as 1, 3 bis(hydroxymethyl)-2-imidazolidinone.  Moulding may be carried out by fitting the carded fibrous web over a heated male mould, applying to the web-covered mould a thin stretching non-adhering silicone rubber blanket, the mould being located on a platform provided with holes connected to a vacuum line, and applying suction to produce a vacuum between the blanket and the mould whereby the blanket is uniformly pressed against the web. Upon releasing the vacuum and removing the moulded article from its mould the article may be impregnated with the fibre-sizing latex by positioning it, convex side up, under a dispensing head containing small orifices through which the latex dispersion is allowed to stream upon the article, after which the latter may be subjected to heating with hot air to dry it and cure the size coating.  Where greater stiffness and strength is needed in the moulded product, two or three plies of fibrous sheet material may be lapped together.  The plies may differ in fibre composition e.g. the two outer plies may be of the type previously described and an inner ply may consist of polyvinyl chloride fibres.  The fibrous sheet material may be needled before moulding.
Patent GB-1535074-A (GB)
Title: Mower cutter head
IPC: A01D34/416
Filed: 1976-07-13
Abstract: 1535074 Mowers ELTA MACHINE INDUSTRIAL CO Ltd 13 July 1976 29125/76 Heading A1F A lawn mower has filamental cutting elements 12 supported on a rotary disc 14 by means of stops 25 engaging apertures 26. The disc 14 is bolted to a further disc 15 so that bosses 21 guide the filaments as they project from between the discs on rotation. The bosses can be formed separately from the discs and be located over projections on the discs.
Patent GB-200429-A (GB)
Title: Improvements in the ejector mechanism of small arms of the drop-down barrel type
IPC: F41A15/06
Filed: 1922-09-12
Abstract: 200,429. Johnstone, D. V., and Fearn, J. W. Sept. 12, 1922. Breech actions, drop-down, barrel.- Ejector mechanism comprises a sliding sear 10, mounted in a diagonal hole in the barrel-lump 14, adapted to engage a shoulder 19 on the spring-pressed extractor leg 12 and operated to release the leg by a lorse sector piece 13 mounted in a slot in the front of the barrel lump and rotated around the hinge pin 15a, when the gun is opened, by an abutment 15<b> on the breech-body. The sear is operated in the reverse direction, when the gun is closed, by an abutment 15<d> on the body below the centre of rotation.
Patent GB-830165-A (GB)
Title: Pneumatic exposure regulating device for photographic cameras
IPC: G03B7/083
Filed: 1957-09-17
Abstract: 830,165. Shutter-speed regulators for photographic cameras. AGFA A. G. Sept. 17, 1957 [Sept. 25, 1956], No. 29284/57. Class 98(1) In a pneumatic exposure-regulating device of the kind having an apertured valve plate 6 and a movable member 10 for covering the apertures 14, the member 10 consists of a thin plastic plate or a metal foil. Preferably, member 10 is driven by photo-electric means: e.g. it is mounted on the spindle 13 of a galvanometer 12 energized by a photo-electric cell (not shown). The valve plate 6 closes the end of a cylinder 5, a membrane 8 being tensioned between the cylinder and a positioning ring 7 and fitting closely a profiled ring 18 in the initial position. A rod 9 connected to the membrane is also connected to a shutter master member, the speed of movement of which is determined by the number of uncovered apertures through which air is admitted when rod 9 moves down, this speed in turn determining the duration of the exposure. Member 10 is made of plastic, preferably polyester, and is vapour coated with metal to prevent accumulation of static charge. It may be pressed against plate 6 immediately before an exposure. The length of the exposure is indicated by an extension 15 of member 10 on a scale 16, which is read through a window 17.
Patent GB-912567-A (GB)
Title: Teat cup inflation
IPC: A01J5/08
Filed: 1961-08-14
Abstract: 912,567. Teat cups. NOOLANDER, D. O. Aug. 14, 1961, No. 29297/61. Class 5(1). A teat-cup inflation comprises a tubular upper part 17 and a milk receiving section 25 defined by straight, longitudinally extending hollow flutes 28 having flat opposed walls 29 spaced apart to form narrow channels 30. Vacuum pulsations are applied to the teat-cup via a nipple 26 causing the walls 29 to flex inwardly so that the section 25 of the inflation immediately beneath the teat end is substantially closed. The flutes 28 may extend the entire length of the inflation. In a modification the section 25 is formed to provide a single narrow channel 30 extending diametrically across the upper part of the inflation.
Patent GB-713111-A (GB)
Title: Improvements in or relating to procedure for the preparation of cyclohexanone oxime by reduction of nitrocyclohexane
Filed: 1951-12-17
Abstract: Cyclohexanone oxime is prepared by reducing nitrocyclohexane with ammonia in the presence of a nickel catalyst under pressure and at an elevated temperature.  The reduction can be carried out in the presence of inert organic solvents such as water-miscible diluents, for example, alcohols.  The nickel may be in the form of a nickel skeleton catalyst, e.g. as obtained by treating nickel aluminium alloys with aqueous alkalis, or nickel deposited on inert carriers, e.g. on pumice, clay pieces, aluminium oxide or kieselguhr.  The nickel catalyst may contain cobalt, chromium, zinc, manganese, copper, alkaline earth or alkali metals.  In the examples cyclohexanone oxime is obtained by reducing nitrocyclohexane with ammonia in the presence of a nickel skeleton catalyst and in the presence of a nickel-chrome catalyst deposited on pumice.  Other methods of carrying out the reduction are referred to, i.e. stannous chloride in an acid medium, nascent hydrogen in an alkaline medium, or catalytic reduction in the presence of catalysts which besides silver and also copper, contain chromium and zinc.
Patent GB-445620-A (GB)
Title: Improvements in and relating to copper-tin alloys
IPC: C22C9/02
Filed: 1934-10-15
Abstract: A bronze which can be subjected to hot working processes comprises copper, 3-10 per cent of tin, 0,2-4 per cent of iron or cobalt, and 0,5-10 per cent of chromium or 0,2-1 per cent of vanadium, or both chromium and vanadium in the proportions specified.  Nickel, manganese, and aluminium may be added in amounts not exceeding 4 per cent of each element.  Bronzes particularly suitable for the casting of bearing parts subject to heavy loads or high temperatures preferably contain 5-10 per cent of tin, 3-10 per cent of chromium, and 0,2-4 per cent of iron or cobalt.  The alloys are preferably made by melting down commercial copper-tin alloy ingots, adding sufficient copper to bring the tin content to the required value, and covering the molten metal with a flux which is preferably a mixture of sodium and calcium fluorides with or without other fluorides, but which may be fused boric acid, borax, or mixtures of borax with glass. Magnesium or phosphorus, e.g. in the form of phosphor copper, is added to deoxidize the melt and lumps of metallic chromium together with metallic iron or cobalt, or lumps of ferrochromium, ferro-vanadium, or ferro-chromevanadium are then dropped through the flux, the temperature being raised to about 1250 DEG  C.  Dry sand is then added to the flux to form a pasty mass and the metal is cast. When casting in permanent moulds, 0,2 per cent of aluminium is preferably included in the alloy.  The Specification as open to inspection under Sect. 91 describes alloys consisting of copper 3-10 per cent of tin, and either or both of 0,5-10 per cent of chromium and 0,2-1 per cent of vanadium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-458490-A (GB)
Title: Improvements relating to table articles
IPC: A47G19/24
Filed: 1935-06-21
Abstract: 458,490. Cruets; cabinets. ANDREWS, E. S., 201, Bank Chambers, High Holborn, London.-(Pratt, E. D. ; 500, River Avenue, Winnipeg, Canada) June 21, 1935, No. 29529. [Classes 52 (i) and 128] A device forming either a cruet-stand or cabinet for holding toilet requisites consists of a hollow triangular prism having an inclined face which supports a mirror or a hinged frame carrying reading matter, e.g. a menu-card. The mirror D is clamped in the frame K and forms a cover for a menu-card Z held in clips hinged on the frame-hinge. The cruet holds condiment receptacles U, a sugar-holder T, and napkins W, and may be provided with ashtrays c. The cruet may be rotatably mounted on a counter by means of a pivot b. Advertisement-holding flanges X are provided. For use on toilet tables the condiment-receptacles are replaced by holders of toilet requisites.
Patent GB-891749-A (GB)
Title: Tail plane for helicopters
IPC: B64C27/82
Filed: 1960-08-29
Abstract: 891,749. Controlling helicopters. HILLER AIRCRAFT CORPORATION. Aug. 29, 1960 [Aug. 31, 1959] No. 29681/60. Class 4. A rotary wing aircraft includes a fuselage, a main rotor having a plurality of rotor blades 12, a pilot operated collective pitch control member 20 movably mounted on the fuselage and a tail plane 34 pivotally mounted on the fuselage and tiltable about an axis transverse thereto, and means connecting the tail plane to collective pitch control member 20 to tilt the tail plane simultaneously with collective pitch adjustment. Tail planes 34 are pivoted about a shaft 35, carried in bearings 36 fixed to the tail boom 3, and are connected by an arm 37 and link 38 to collective pitch control member 20. By pivoting the tail planes to the position in which they offer the least resistance to the relative wind WC, pitching of the tail 3 will be reduced and the amount of rotor tilt available for altitude control will be increased.
Patent GB-1083339-A (GB)
Title: Improvements relating to a.c. bridges
Inventor: BAKER WILLIAM PERCIVAL
IPC: G01R17/00
Filed: 1963-07-26
Abstract: 1,083,339. Measuring bridge circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 9, 1964 [July 26, 1963], No. 29757/63. Heading G1U. An A. C. bridge of the type having two adjacent arms comprising inductively coupled opposed ratio coils 3, 4 and two other arms comprising an impedance Z 1  under test and a standard impedance Z 2 , an A. C. source 1, 2 connected between the junction of the ratio coils and the junction of the other two arms and a search coil connected to indicator 5 inductively coupled with the ratio coils is combined with a current divider which serves during operation of the bridge to limit the current flowing in the ratio coil 3 to a known fraction of the current flowing in the impedance Z 1 . Such an arrangement extends the range of values of Z 1  which may accurately be measured. The current divider consists of a series arrangement of resistors 11, 12, 13 and inductors 8, 9, 10, the ratios of these to one another being adjusted in accordance with the ranges it is desired to provide. The switch 14 which makes connection between Z 1  and a suitable tapping 7a or 7b enables the range to be changed by adjusting the proportion of the current through Z 1  which passes through the balance arm 3, the other part of the current going directly to earth. To adjust the bridge for balance, the variable resistor 13 is set to its minimum, and then the bridge is balanced (as shown on the indicator 5) by adjusting the arm 3. The resistor 13 is then increased until the indicator 15, which shows whether correct current division is achieved in the current divider, indicates a null. The operations are repeated until both indicators show a zero reading simultaneously, whereat the correct balance condition is established.
Patent GB-405757-A (GB)
Title: Improved device for detecting substantial depletion of the weft supply in looms
IPC: D03D51/34
Filed: 1932-10-25
Abstract: 405,757. Detecting substantial depletion of weft in shuttles. FRASER, R., Cairniehill, Arbroath, Angus.-(Fraser, R. M. ; 1053, Calle Patricios, Buenos Aires.) Oct. 25, 1932, No. 29819. [Class 142 (iii).] A device for detecting approaching depletion of the weft supply in looms comprises an electric light bulb 4 with a reflector 5, and a light sensitive device, such as a photoelectric cell 3 or a selenium cell, mounted on the lay. A switch operated from the shuttle or from the lay or a loom shaft closes the lighting circuit when the lay is forward, and unless the weft on the cop 11 in the shuttle intercepts the rays, light from the lamp passes through apertures 6, 7, 8, 9 and irridates the cell 3. An electric current then passes through leads 13, 14 to a sensitive relay and an amplifying unit. This operates an indicating device and /or causes some change in the working of the loom such as the operation of a stop motion or a shuttle changing or other weft-replenishing mechanism.
Patent GB-208135-A (GB)
Title: Improvements in or relating to the briquetting peat or humus
IPC: C10F5/00
Filed: 1923-11-27
Abstract: 208,135. Stillman, A. L. Dec. 8, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Peat, preparing.-Peat or humus, macerated if roots and fibre are present, is dried by exposure to the sun for one to six weeks and is then subjected to wringing pressure and briquetted, the wringing action serving to liberate moisture contained in the peat cells. The soggy briquettes are preliminarily dried and then exposed to the sun, whereupon they shrink and harden, a hydrolized cellulose being formed which acts as a binder.