baber/WOPTO huggingface dataset:
Patent GB-419629-A (GB)
Title: Improvements in or relating to porous fibrous products and method of making same
IPC: A24D3/14
Filed: 1933-09-29
Abstract: Filter plates are made from intermingled animal, vegetable, mineral or artificial fibres partially or wholly wetted with an aqueous dispersion of a bonding agent such as rubber, bitumen, bitumen-rubber mixture, nitro-cellulose, acetyl cellulose, viscose, or synthetic resins such as phenol-formaldehyde resin, by compressing the mass almost to the greatest possible extent before the bonding agent loses its plastic nature.  Suitable fibres are hair, jute, hemp, sizal, fibris, glass wool, asbestos, viscose.  The fibres may be preliminarily shaped before application of the dispersions by diffusing or spraying after which the water is partially or wholly removed before pressing in moulds or between cylinders, which may also shape the product by providing ribs, cavities or corrugations. When rubber is used as a bonding agent, vulcanization is effected after pressing and vulcanite or coriaceous rubber may be formed.  A laminated product may be formed by superposing a plurality of thin layers.  The Specification as open to inspection under Sect. 91 refers also to the use of bonding agents in solution or in a molten state. This subject-matter does not appear in the Specification as accepted.
Patent GB-466764-A (GB)
Title: An improved method of and means for rolling rods and tubes
IPC: B21B19/06
Filed: 1936-10-03
Abstract: 466,764. Rolling tubes &c. SKERRETT, H. N. (Timken Roller Bearing Co.) Oct. 3, 1936, No. 26828. [Class 83 (iv)] Rod or tube is thinned and elongated by a steeply inclined surface C of continuously revolving skew rolls between which the tube &c. passes. A solid billet or a tube X on a mandrel 60 is reduced between skewed conical rolls 6 which are so shaped as to provide an entering zone A, a zone B to feed the tube to a steeply inclined narrow reducing zone C, a shallow grooved zone D clear of the work to eliminate torsion, a zone E to feed and rotate the tube at the same speed as B and smooth out any ridges and also to cause the tube to balloon out clear of the mandrel for facilitating stripping and also a zone F to round the tube. Each of the three rolls 6 is mounted in a cradle 23 mounted between end plates 4, 5 and adjusted longitudinally by screw 75. The roll pass is adjusted at each end by worm screws 33, bearing on each end of the roll carrying cradle 23, and operated by sprockets adjusted by a hand wheel 68, operating the sprocket for all the roll passes at one end through a common sprocket chain 67. A feed trough 53 is adjustable at one end by bolt and slot 54a. The two end housings 4 and 5 and the rolls are removable from the base as a unit. To adjust the skew of the rolls the rear housing 5 has slots for the tie bolts 15 and so can be moved round relative to the plate 4, the roll cradle 23 being. mounted by spherical bearings in the side plates to allow movement. In a modification the rolls may be shaped as in Fig. 16 in which the single narrow zone C1 does most of the reducing. In Fig. 18, the single narrow zone C3 for reducing is not on the rolls but is on the mandrel instead. Steel or iron is hot rolled but copper or other soft metal may be cold rolled. Specifications 28248 /06, [Class 83], and 384,120 are referred to.
Patent GB-694797-A (GB)
Title: Improvements in or relating to vitamin b
Inventor: COOLEY GEORGE
IPC: A61K31/00
Filed: 1950-11-06
Abstract: Vitamin B12 is obtained from vitamin B12b by reacting vitamin B12b with ammonia and treating the resulting ammonia cobalichrome with a soluble cyanide, e.g. aqueous HCN, alkali metal cyanide, or ammonium cyanide.  The ammonia cobalichrome may be prepared by treating vitamin B12b with liquid ammonia, aqueous or alcoholic ammonia which is removed by evaporation.  The vitamin B12 is isolated from the cyanide solution by acidification with mineral acid followed by extraction with phenol.  The invention also comprises ammonia cobalichrome identified by its absorption spectrum at pH's between 12 and 3 which is characterized by peaks at:- .Angstrom.and.Angstrom .units.inflections.units .5400.at:.5120 .4120..3400 .3560..3200 .2765..3040 ...2895
Patent GB-1139744-A (GB)
Title: Improvements in or relating to differential amplifiers employing transistors
IPC: H03F3/42
Filed: 1966-06-17
Abstract: 1,139,744. Transistor amplifying circuits. SIEMENS A.G. 17 June, 1966 [18 June, 1965], No. 27158/66. Heading H3T. In a differential amplifier a pair of complementary transistors are connected in series with their bases in separate input circuits, their emitters being connected together by a network including a capacitor CE in series with a resistor RE 2  of relatively low value, both being in parallel with a relatively high value resistor RE 1  which determines the working points of the transistors, in conjunction with a voltage source UB connected to the base of one of the transistors. The arrangement substantially eliminates amplification of any co-phasal input signals U 1 , U 2 .
Patent GB-1090378-A (GB)
Title: Improvements in or relating to idler arm assemblies for vehicle steering systems
Inventor: HERBENAR EDWARD JOHN
IPC: B62D7/16
Filed: 1966-06-17
Abstract: 1,090,378. Steering linkages. TRW Inc. June 17, 1966, No. 27244/66. Heading B7H. [Also in Division E2] A steering linkage for a vehicle includes an idler arm bracket 11 comprising a bracket portion 14 carrying a socket portion 16 which is closed at its inner end and open at its outer end and is formed after insertion of a pivot pin 33 on the idler arm with a radially inturned flange 29. A flexible bush 43 surrounding the pin 33 and compressed axially between a head 34 on the pin and a ring 45 retained by the flange 29 exerts radial pressure on the pin to provide a constant resistance to turning of the idler arm 17. The bush 43 is formed of polyethylene, polypropylene or nylon, or in another embodiment the bush is formed of rubber and a nylon sleeve is interposed between the bush and pin. A part spherical end surface 40 on the head 34 bears against a spherical surface 30 in a cavity 31 forming a lubricant pocket, or in Fig. 3 (not shown) a flat end surface (54) on the head abuts a polyurethane or polyethylene seat (51) formed with lubricant reservoirs (52), or in Fig. 4 (not shown) a spherical element (61) formed of either polypropylene, polyethylene, polytetrafluoroethylene, acetal resin or a trioxane copolymer with an equatorial flange (66) is interposed between concave surfaces (63, 65) in the head and socket, or in Fig. 5 (not shown) a conical protruberance (71) on the head engages a similarly shaped recess (72). A rubber seal 46 prevents ingress of dirt and loss of lubricant, or in Figs. 6, 7 (not shown) a reversely bent thin-walled extension (75, 80) of the bush 43 or sleeve (56) co-operates with the idler arm and flange 29 to form a seal.
Patent GB-1223216-A (GB)
Title: Mixing apparatus
IPC: B29B7/18
Filed: 1969-05-29
Abstract: 1,223,216. Compression mixers. INTERCOLE AUTOMATION Inc. 29 May, 1969 [17 June, 1968], No. 27249/69. Heading B1C. A Banbury type mixer has a chamber 12 defined by side members 16, 17 and end members 18, 19, at least one of the side members having return faces as at 70, 70' which abut the inner faces 52 of the end members. Both side and end members have pairs of mutually transverse grooves as 80, 84; 80', 84'; 60a, 62a; 60b, 62b which, when the faces abut, cooperate to form keyways into which elongated rectangular locating keys can be inserted. The keys have exposed ends with tapped holes 98 into which an extracting tool can be fitted.
Patent GB-748428-A (GB)
Title: Improvements in precipitation of zinc compounds
IPC: C01G9/00
Filed: 1953-10-05
Abstract: Zinc is removed as carbonate or basic carbonate from solutions of zinc ammonium carbonate which contains at least one additional non-ferrous metal capable of forming a soluble ammonia complex, particularly copper, by heating the solution to a temperature between 30 and 85 DEG C. to reduce the total ammonia content to an extent insufficient to hold all of the zinc in solution but sufficient to hold the additional non-ferrous metal in solution upon cooling the solution, and thereafter cooling the solution to precipitate the zinc as a zinc carbonate.  The solutions employed are particularly those resulting from ammoniacal leaching of copper and zinc containing scrap but solutions containing zinc with nickel or cobalt may also be employed.  The heating of the solution is preferably effected under vacuum and air may be bubbled through the solution being treated or alternatively steam may be admitted to heat the liquor.  After heating the liquor to reduce the ammonia content and cooling to 20 to 25 DEG C. the solution may be carbonated to hasten zinc precipitation.  The solutions treated may be recycled solutions from the ammoniacal ammonium carbonate leaching of a material containing zinc and copper a portion of the copper having been precipitated as metallic copper by gas reduction with carbon or hydrogen monoxide and it is preferred that the zinc content in such solutions be permitted to rise to about 30 grams or more of zinc per litre before precipitation; in such a case it is preferable that from 10 to 20 grams per litre of zinc be allowed to remain in the solution after precipitation, such solution being recycled back to the leach tank. Both the zinc and the copper ammonium carbonate hydrolyse on heating after which the ammonia and carbon dioxide come off. The copper appears to hydrolyse to a soluble basic carbonate of the azurite type.  According to a typical example a leach recycle liquor was heated to about 60 DEG C. and agitated by air bubbled through it. After heating for 1 hour the solution was cooled to 25 DEG C. and carbon dioxide gas was bubbled through for 1 hour after which the precipitate of zinc carbonate was filtered and dried. The zinc carbonate precipitate may be dried or calcined, or redissolved in an ammonia-ammonium carbonate solution, metallic zinc added to cement out impurities to leave a zinc ammonium carbonate solution from which zinc carbonate may be obtained as above described.
Patent GB-426352-A (GB)
Title: Improvements in firegrates for gas producers, furnaces and the like
IPC: C10J3/34
Filed: 1933-10-06
Abstract: 426,352. Grates. WHITFIELD GAS PRODUCER PATENTS, Ltd., and ALSOP, H. L., 82, Victoria Street, London. Oct. 6, 1933, No. 27503. [Class 51 (i)] A rotary grate c is provided with one or more clinker cutters a each consisting of a blade attached to the grate-supporting ring b and projecting into the space between the lower edge of the grate and the wall e of the combustion chamber. Part of the blade projects above and part below the edge of the grate and the blade is inclined at substantially 45‹, the upper part leading as the grate rotates. The cutters may be of angle section with the flange d directed outwardly and bevelled at each end as shown. Specification 403,705 is referred to.
Patent GB-646337-A (GB)
Title: Improvements in and relating to methods for fastening a binding strip
IPC: F16L33/02
Filed: 1948-10-25
Abstract: 646,337. Band clips. RATELBAND, J. B. Oct. 25, 1948, No. 27639. [Class 44] [Also in Group XXIII] A band clip 3, formed with perforations 4, is tightened round a hose or the like 2 by means of a device such as that shown, and retained by inserting a screw or screws 14 through registering perforations. In a modified form of fastening, hollow internally threaded rivets 14a, Fig. 3, are first inserted in the perforations in the underlying part of the band, and the screws 14b screwed into the rivets. A clip 16, Fig. 5, may be used instead of a screw; the upper limb of the clip carries a tooth 17 which enters the registering perforations when the clip is closed down.
Patent GB-940816-A (GB)
Title: Improvements relating to drive mechanisms
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B60K17/10
Filed: 1961-07-31
Abstract: 940,816. Hand trucks. M. L. AVIATION CO. Ltd. Sept. 14, 1962 [July 31, 1961], No. 27718/61. Heading B7B. [Also in Division B8] A vehicle for loading stores into aircraft has one or more of its wheels driven by a reversible hydraulic motor supplied with fluid through control valve 18 with forward, neutral and reverse drive positions by hand-operated pump 21. Each wheel may be steered by a lever 37 with a square section shank 38 which fits into the wheel mounting 34 or may be held in one of a number of positions by pin 43 (Fig. 4) engaging suitable holes 40 and 41 of a number of spaced holes in plates 39 and 35 on the shank and wheel mounting respectively. The vehicle may be formed by drawbar 44 when valve 18 is in its neutral position.
Patent GB-586589-A (GB)
Title: Improvements in or relating to fire or like control apparatus for guns or similarly controllable devices
IPC: F41G5/04
Filed: 1937-10-12
Abstract: 586,589. Gun and torpedo fire control. VARIABLE SPEED GEAR, Ltd., and INGOLDBY, M. K. 'Oct. 12, 1937, No. 27737. [Classes 9 (ii), 92 (i) and 92 (ii)] [Also in Group XXIX] A fire control system for use with guns and torpedo tubes to take account of the relative speed of the gun or the like and the target comprises a sight 1, a predictor 23 and gun or the like directing mechanism 63, the movements of the sight in elevation and training being effected by hydraulic swash-plate pump and motor systems 12, 10, 11, 9 respectively controlled by valves or swash-plate angulating means 14, 13. Connections 26, 25 between the sight and the predictor introduce to the predictor the actual movements of the sight, and further connections 29, 27 introduce the rate of change of such movements. The sight is also a range-finder and the range is introduced by a connection 33. The lead angles calculated in the predictor emorge by shafts 35, 34 and are conveyed to the gun or the like by swash-plate pump and motor systems 45, 46 through follow-up hunter gearing. This gearing includes an input gear 36, 37 and an output gear 49, 50 connected by a screwed rotating and sliding shaft 38 which actuates the angulating - member 44 of the swash-plate pump through linkage 41, 43. The lag is measured by an epicyclic gear, the planetary pinions 58 of which are mounted in a swivelling casing 56 and engage a wheel 53 fast with the wheel 50 and a wheel 55 feathered on the shaft 38. The movements of the casing 56 are returned to the predictor, as a measure of the lag, through shaft 61. The output shaft 48 of the follow-up device drives the gun or the like training shaft 82 and the output shaft 64 drives the elevating shaft 83. The gear-box 63 through which these elevating and training drives' are conveyed is. shown in section in Fig. 2 and includes epicyclic gears 71, 77 to ensure that elevation movements are unaffected by training and vice versa. In a modification, the swash-plate motors 5, 6 are controlled by reversing valves, the separate pumps 9, 10 being replaced by a single pump. The swash-plate motor 46 is controlled by a similar reversing valve operated by a cam on the swivelling casing 56.
Patent GB-800342-A (GB)
Title: An electricity generator operating by magnetostriction
IPC: H01L41/12
Filed: 1956-09-11
Abstract: 800,342. Mounting reciprocating generators; mounting accessoris in/on reciprocating generators. BENDIX AVIATION CORPORATION Sept. 11, 1956 [Sept. 30, 1955], No. 27813/56. Class 35. [Also in Groups XXV, XXXV, XXXVIII and XXXIX] In an electricity generator operating by magneto-striction effect to generate a variable current when subjected to shocks or vibrations, e.g. an I.C. engine impact or vibration detector, and comprising a permanent magnet 19, Fig. 1, surrounded by a coil 22 in turn substantially surrounded by a casing which forms the magnetic flux return path of the magnet, a magnetic number 27 carrying a detachable electrical connector leading to an external circuit is secured to the generator by the action of the magnet 19 the flux of which in bridging a gap created by a member 12, 14 in the return path links with the member 27. The magnetic casing comprises a tubular shell 10 locked by a pin 26 to a plug 21 having a threaded integral post 30 by which the detector can be mounted on an engine cylinder (not shown). The ends of coil 22 are respectively grounded to shell 10 and lead out at 24 through an insulating cup 18 to a washer terminal 25. The plunger member 27 may have a hollow boss 35 to which is silver soldered the metallic conduit 34 if provided of an insulated cable 32 having a conductor 31 secured to a helical coiled ribbon spring terminal 33 which contacts the washer terminal 25. A non-magnetic ring 28 is provided around the plunger 27 to concentrate the flux. In another embodiment (not shown) the electrical contact is made through a pin and socket construction as described in Specification 730,070, [Group XXXVI], which is referred to, the detachable engagement being maintained by a similar magnetic arrangement. The magnet also may be utilized to detachably secure the detector to an adapter 75, Fig. 3, either permanently or removably secured to e.g. an engine cylinder, a non-magnetic ring 71 interposed between the tubular shell 70 and a magnet pole shoe 72 forming another gap which causes the return flux to link with the adapter 75.
Patent GB-880705-A (GB)
Title: Wrapping machines
IPC: B65B11/12
Filed: 1959-08-14
Abstract: 880,705. Cutting webs. PACKAGE MACHINERY CO. Aug. 14, 1959 [Aug. 29, 1958], No. 27821/59. Class 31 (1). [Also in Group XVII] A device for slitting a web longitudinally at spaced intervals in the formation of wrappers being fed to a wrapping apparatus (see Group XVII), includes a pair of rotating cutters 22 mounted below the line of travel of the web W and against which the web is depressed at intervals by rotating pressers 98. The web passes over plates 76, 80, the cutters being mounted between the plates and below their common horizontal surface. The pressers 98 have grooves 112 into which the cutters enter when slitting the web. The cutters are adjustable on their shaft 84, and extensions such as 130 may be bolted on to the pressers to enable them to cope with wider webs.
Patent GB-520224-A (GB)
Title: Improvements in or relating to hydraulic power transmission apparatus
IPC: F16H41/26
Filed: 1938-09-16
Abstract: 520,224. Hydraulic torque converters. SALERNI, P. M. Sept. 16, 1938, No. 27851/37. [Class 69 (ii)] An hydraulic torque converter of the F÷ttinger type comprises a rotary impeller 1 and two more reaction elements 3, 3<SP>1</SP> with vanes 3a, 3b between .which are interposed one or more sets of turbine vanes 2, 2<SP>1</SP>, the reaction elements being capable of rotation relatively to each other, and, under some conditions of operation, one or more of which rotate in a forward direction, the radial distances, from the axis x - x of rotation, of the middle points of the inlets 4, 6 between their vanes being slightly.greater than the respective radial distances from such axis of the middle points of the corresponding outlets 5, 7. A ratchet-and-pawl device 13 or the like prevents backward rotation of the reaction elements. Specifications 436,740, 456,276, 493,459 and 505,356 are referred to.
Patent GB-157068-A (GB)
Title: Margin setting devices for typewriters
IPC: B41J29/50
Filed: 1920-10-01
Abstract: 157,068. Graff, M. Jan. 13, 1920, [Convention date]. Margin stops.-Margin stops arranged at the rear of the paper-carriage are set by means of screws which are operated by cranks at the sides of the machine, the setting being indicated by rotary scales at the front of the machine. A lefthand margin stop 6, having a lug 9 for engaging a lug 11 on the paper-carriage 10, is guided by a groove 8 in the framework 1 and is engaged by a screw connected by a chain 13 to a shaft 16 which is operated by a crank 15 arranged at the lefthand side and near the front of the framework. A rotary scale arranged behind a slot 35 in the framework consists of a units-indicating drum 20 and a tens-indicating disc 27. The drum-shaft 28 is geared by pinions 19, 21 to the crank-shaft 16, and the tens-indicating disc is loose on the drum-shaft and is geared to a pinion 30 which is operated periodically by means of a single-toothed wheel 29 on the drum-shaft. The crank is provided with a tooth 22 for engaging locking-grooves 24 in a ring 25. The above-described arrangement is provided in duplicate for the right-hand margin stop, the crank and rotary scale being arranged at the right of the framework.
Patent GB-797511-A (GB)
Title: Improvements in and relating to variable speed gear
IPC: F16H15/22
Filed: 1953-10-10
Abstract: 797,511. Variable-speed gear. PIETRASZEWSKI, B. Oct. 11, 1954 [Oct. 10, 1953], No. 27917/53. Class 80 (2). Friction cones 16, 17 on parallel input and output shafts 13, 15, with their bases opposite and their adjacent generatrices parallel and forming a gap of constant width, are drivingly connected by one or more double-coned friction idlers 18, 19, which, to vary the speed ratio, can be traversed axially along guide-rods 23, 26 which maintain the idler axes parallel to and offset from the cone gap. The idlers 18, 19 are carried respectively by two relatively slidable tubes 20, 21 which can be urged apart in opposition to an internal engaging spring to spread the idlers out of engagement with the cones by turning relatively to one another by handles 34, 33, an outer sleeve 32, having diametrically opposite end cam recesses 32a, 32b engaging pins 29, 30 fast with the respective idler tubes 20, 21, and an inner sleeve 31 having axial slots receiving the pins 29, 30. The sleeve 31 is mounted on a suitably slotted guide sleeve 25 which slides on the guide rod 26. With the idlers thus disengaged from the cones they may be slid axially together on the guide rods 23, 26 for ratio change, or alternatively a precessional idler shift may be made by turning both sleeves 31, 32 together to cause the idlers to become inclined about the transverse axis, thus inducing axial shift. In an hydraulically controlled form, Fig. 11, fluid pressure supplied to one or other of two lines 56, 57 by manually reciprocating a piston 36 through a rack-and-pinion 39, passes to a selector valve 58 which can be set to supply the pressure simultaneously to two pistons 45, 46 for pressing the idlers 18, 19 into engagement with the cones 16, 17 in opposition to release springs 47; or to either of two pistons 52, 54 for shifting the idler-carrier 41 axially to vary the speed ratio.
Patent GB-917476-A (GB)
Title: Suction nozzles for vacuum cleaners
IPC: A47L9/04
Filed: 1961-08-02
Abstract: 917,476. Suction cleaner nozzles. ELECTROLUX CORPORATION. Aug. 2, 1961 [Sept. 27, 1960], No. 28026/61. Class 8 (1). In a suction nozzle for a vacuum cleaner the electric motor 28 driving a rotary brush 16 has a power supply lead 72 passing through a channel 70 extending along the combined manipulating handle and suction conduit 68. The lead 72 is preferably connected to the vacuum cleaner unit to receive power therefrom. The handle 68 has a transverse cylindrical end-piece 58 pivotally supported in a bearing 56, 62 in the body 10 of the nozzle.