baber/WOPTO huggingface dataset:
Patent GB-611710-A (GB)
Title: Improvements in radio frequency heating, particularly for the permanent waving of hair
IPC: A45D20/00
Filed: 1944-10-10
Abstract: 611,710. Heating by electromagnetic induction. WARREN, S. F. Oct. 10, 1944. No. 19444. [Class 39 (iii)] Also in Group XXXV] In radio frequency heating apparatus, particularly for the permanent waving of hair, heat is generated by electro-magnetic radiation producing a curculating current in a tuned oscillatory circuit comprising an element the electrical characteristic of which varies with temperature, whereby the tuning of the circuit and consequently the heat generated varies with variations in the temperature. A substantially constant predetermined temperature may be obtained by employing in the oscillatory circuit a condenser that employs as dielectric a material having a dielectric constant which varies with temperature, e.g. the ceramic material known under the Registered Trade Mark "Faradex," which detunes the circuit automatically when the predetermined temperature is exceeded, and restores tuning after a requisite amount of cooling. The condenser is located in close proximity to a resistance heating coil connected to it in series with a low impedance pickup coil in the oscillatory circuit. Since the heating device heats up slowly when the condenser is off tune, means may be provided for adjusting manually the tuning of the oscillatory circuit, preferably to two or more pre-set conditions, or the heating devices may be pre-heated by heating separately in a warming box or chamber before the pick-up is submitted to R.F. radiation. Preferably, however, the transmitter is adapted to have the frequency varied, either continuously, or in stages to two or three pre-set values, until the final frequency is attained at which the desired temperature is reached. These frequency changes may be effected automatically by an electric motor. The circuit comprising the low and high impedance coils may be embodied in a system for the permanent waving of hair, by embedding the heater coil in a ceramic material formed with a vitreous surface to facilitate cleaning. The ceramic may be of tubular form with the heater coil embedded in it, and arranged to be slid over a wound tress of hair on a curler, or it may be constructed in the form of a clamp. The pick-up coil may be carried by the ceramic, 'preferably in a mechanically adjustable manner so that it can be disposed in the position to obtain maximum pick-up from the radiating loop. Alternatively the pick-up coil may comprise two or more coils arranged at different angles. Instead of the position of the pick-up coils being adjustable the transmitter may comprise two or more loops at different angles. The transmitter may be provided with a switch whereby its output may be varied in steps, e.g. by changing the voltage applied to the anode of the output valve, and when a number of heating devices are employed, as in the permanent waving of hair, each heating device may be provided with an indicating member such as a lamp which operates when the heating device is energised. Specification 569,631 is referred to.
Patent GB-150885-A (GB)
Title: Improvements in and relating to hats
IPC: A42C5/00
Filed: 1919-08-07
Abstract: 150,885. Carrington, W. E. Aug. 7, 1919. Felt hats; ornamenting.-Felt hats are ornamented by attaching to the whole or to parts thereof on contiguous parallel lines one or more strips, cords, or the like of flexible material, which previous to attachment are twisted, knotted, crimped, coiled, pleated, dyed, or otherwise manipulated to produce a broken or uneven appearance when attached. In one method of carrying out this invention, two felt hat bodies a, b, Fig. 1, may be steamed together, and the outer one then removed, cut up into one or more spiral strips c and twisted, and finally attached by an adhesive or by spiral or other stitching f, Fig. 3, to the whole or to part of the hat body b, which may be of half the usual thickness. In Fig. 8 a hat is shown ornamented in part by this method.
Patent GB-916471-A (GB)
Title: Improvements in or relating to mine winders
Inventor: BOTEVYLE LAURENCE GEORGE
IPC: B66B1/42
Filed: 1960-06-01
Abstract: 916,471. Hoists. GENERAL ELECTRIC CO. Ltd. June 1, 1961 [June 1, 1960], No. 19469/60. Class 78 (5). In a mine winder of the friction drum type in which a position indicator shaft 1, Fig. 1, driven from a main shaft 2, has a correction for rope slip provided by a differential gear 6, provision for manual correction is incorporated in the drive for the differential gear. A handle 11 is fitted on one end of the shaft carrying the worm-wheel 7 through which the differential gear is normally driven from a motor 8. A clutch 9 with manual control 10 is provided for disconnecting the motor drive. Specification 783,298 is referred to.
Patent GB-516459-A (GB)
Title: Improvements in and relating to electro-magnetically operated switch mechanism
IPC: H01H83/12
Filed: 1938-07-01
Abstract: 516,459. Electromagnetic switches. HOLME & CO. (1931), Ltd., E., and FAWCETT, R. H. July 1, 1938, No. 19484. [Class 38 (v)] In an electromagnetic change-over switch the armature and contact member are independently pivoted with lost motion between them so that the armature strikes the contact member a hammer blow. In the form shown in Fig. 1, three contact arms 1 mounted on a spindle 2 are gravity-biased so as to bring contacts 6 into engagement with fixed contacts 9 but may be moved so that contacts 6 on their other ends are brought into engagement with contacts 7. The spindle 2 carries two arms 5 adapted to be struck respectively by two pins 14 on two gravity biased armatures controlled respectively by an operating coil 11a and a holding on coil 11b and the armatures also each carry two pins 19 which grip between them the operating lever 18 of a toggle switch controlling contacts 17, Fig. 5. A possible circuit arrangement is shown in Fig. 5 wherein an A.C. circuit energizes the magnet 11a and after rectification, the magnet 11b. The coils 11a, 11b are in parallel with the circuit which includes one end of the arms 1. When the voltage is sufficient both armatures are attracted, the switch arms 1 move into their other position, contacts 20 open to cut out the coil 11a and contacts 17 to insert a resistance 16. When the voltage drops the switch moves into its original position, in which, for example, it puts an alternative supply .into operation. Other circuit arrangements both for A.C. and D.C. are described. Specification 412,272 is referred to.
Patent GB-613749-A (GB)
Title: Improvements in domestic pans, saucepans or similar utensils
IPC: A47J27/56
Filed: 1946-07-01
Abstract: 613,749. Saucepans &c. STEMP, G. July 1, 1946, No. 19553. [Class 66] A saucepan &c. 3 has a water-container 1 under its apertured lid 2 so that milk &c. on boiiing contacts the cool bottom of the container 1 and does not boil over. The apertures in the lid may take the form of a ring of holes 21. In a modification (not shown) the water-container may be supported by a spider.
Patent GB-756354-A (GB)
Title: Improvements in machines for making tubes
Inventor: ROBERTS GEORGE RICHARD
IPC: B31C1/00
Filed: 1953-07-14
Abstract: 756,354. Tube-making machines. BOWATER DEVELOPMENT & RESEARCH, Ltd. July 2, 1954 [July 14, 1953], No. 19562/53. Class 99(2). A mounting for a winding mandrel 1 comprises a fixed support for the driven end of the mandrel and a retractable steady 3 for the other end of the mandrel, supporting and guiding means 29, 31 for the steady whereby the latter may reciprocate in a radial direction towards and away from the mandrel to allow removal of a convolutely-wound tube from the mandrel, and driving means for reciprocating the steady. As shown, the steady 3 is cupped at 4 to receive the free end of the mandrel shaft 2 and carries parallel channel members 5, 5<SP>1</SP>, a block 6 slidable in the member 5 being connected by a key 7 to a wheel 8 driven through worm gearing 10, 11 by a motor 9, and a block 12 slidable in the channel 5<SP>1</SP> being pivotally connected at 13 to an arm 14 fast with a rocking shaft 15 disposed across the machine. A pair of arms 16 carrying a pressure pad 17 and counterweights 18 are freely mounted on the shaft 15. An arm 19 fast on the shaft 15 and near the steady 3 carries a set-screw 20 which bears on one of the arms 16, and a catch 21 actuated by a solenoid 22 holds that arm in a lowered position. Secured to the shaft 15 and near the driven end of the mandrel is an arm 23 connected by a link 24 to a bell-crank 25 which in turn is connected by a link 26 to a slide 27 movable in guides 28 on the mandrel headstock housing, the slide actuating mechanism for contracting the mandrel. In operation, starting of the motor 9 causes rotation of the wheel 8 to lift the block 6 and the channel 5 in which the blocks slides whereby the steady is raised in the guides 29, 31 until the cup 4 supports the shaft 2 and the motor is automatically stopped by a limit switch. Whilst the steady is rising the block 12 slides in the channel 5<SP>1</SP> to swing the arm 14 which rocks the shaft 15 so that the slide 27 is raised by the linkage 24, 25, 26 and disengages the actuating means for contracting the mandrel, the mandrel therefor expanding. Rocking of the shaft 15 causes the arm 19 and screw 20 to move away from the arm 16 so that when the catch 21 is released the counterweights 18 bring the pad 17 to bear on the tube being wound on the mandrel. Specifications 756,355, 756,356 and 756,357 [all in Group VIII], are referred to.
Patent GB-767986-A (GB)
Title: Improvements in room heating or cooling systems
IPC: F24D3/16
Filed: 1954-07-05
Abstract: 767,986. Radiators for heating buildings; sound insulation. FRENGER, K. G. July 5, 1954 [July 8, 1953], No. 19626/54. Class 64(2). Heating or cooling metal plates 5, 6 are mounted, e.g. secured to pipes 1 heated by electricity or heated or cooled by fluid inside, between a radiation panel and a wall or between a sub-ceiling 7 and a ceiling 2 and supported directly or indirectly by elastic members such as metal springs 4 tending to urge the plates away from the wall or ceiling 2 so that there is resilient contact of the plates with the panel or sub-ceiling. Figs. 1 and 2 show respectively the positions of pipes and plates before and after application of a sub-ceiling 7. The ends of the springs 4 engage in slots 3a in beams 3 attached to the ceiling 2 and the middle portions grip the pipes 1. The plates 5, 6 have flanges 5a, 6a at their inner edges, where adjacent portions are clipped, welded or riveted together, so that clips for gripping the pipes 1 are thus formed and at the outer edges there are perforations 5<SP>1</SP>, 6<SP>1</SP> or tongue or hook projections. These outer edges may thus be anchored in a plaster layer which together with a corrugated metal sheet or netting or wire gauze 7a nailed to the beams forms the sub-ceiling in some embodiments. This composite sub-ceiling may have sound absorbing perforations. Preformed plaster panels, Figs. 5, 6 (not shown) may form the subceiling and they may have perforations leading to sound absorbing material above plates 5, 6 having corresponding perforations. The plates 5, 6 may be parts of a single sheet formed with a middle groove fitting over a pipe 1, Fig. 7 (not shown) so that the springs 4 grip the groove. Additional spring clips, Fig. 5 (not shown), may be provided between a pipe and the upper surfaces of its plates, 5, 6 to increase the pressure of the plates on the subceiling.
Patent GB-596712-A (GB)
Title: Improvements in and relating to vibratory ball mills
IPC: B02C17/14
Filed: 1945-07-31
Abstract: 596,712. Vibratory ball mills. HAIM, G., and ZADE, H, P. July 31, 1945, No. 19652. [Class 59] In a vibratory ball mill a plurality of outof-balance weights are arranged round a motordriven shaft so that their relative radial position, or their angular relationship or both, may be varied. A chamber 1, fixed in a cradle 3, mounted on a bearing 4, which is attached to the base 7 by springs 5, is vibrated by the eccentric wheel 11 on a shaft 10 driven through a flexible coupling 9. The spoked wheel 11 may have concentric rings 15, Fig. 4, to which weights 12 are secured by screws 14 or it may be replaced by a disc on which adjustable weights are fixed in T-shaped grooves arranged either concentrically or radially. German Specifications 233,164 and 661,108 are referred to.
Patent GB-261341-A (GB)
Title: Improvements in serving machines
IPC: H01B13/28
Filed: 1926-08-10
Abstract: 261,341. Western Electric Co., Inc., (Assignees of Carter, H. F.). Nov. 16, 1925, [Convention date]. Cores, covering by winding. - In a serving machine, e.g. a machine for winding metallic tape upon a core, such as that described in Specification 203,297, the reel of serving material is mounted in such manner upon the spindle through which the core is fed that the speed of rotation of the reel relatively to the spindle, and winding head carried thereby, can be varied at will so as to vary the tension in the serving material while the machine is operating, the effectiveness of such control means being independent of the weight of the serving material. Rotation of the spindle 11 is transmitted to the reel 40 through a friction clutch comprising discs 28, 29, lateral pressure being exerted upon the discs by a bearing 24 which is slidable with respect to the spindle 11 and is acted upon by spring-pressed plungers 53, 54. The plungers 53 are mounted in a plate 52 which is moved axially of the spindle 11 by rotation of a nut 62 which is secured to the main frame 10 of the machine so as to 'be incapable of axial movement and which in its rotation moves axially a plate 72 to which the plate 52 is rigidly secured by bolts 75. A stop 64 for securing the nut 62 in any desired position, and other stops 77 for limiting within predetermined limits the rotation of the nut are provided upon the main frame 10. The reel 40 is secured in position on the sleeve 27, to which are keyed one set 29 of the friction discs, by spring-pressed latches 44 mounted within depressions 45 in a collar 39 secured to the sleeve 27. a cam 47 being provided for simultaneously actuating the latches to release the reel. The serving material is pressed against the core 13 by a nozzle 49 such as is described in Specification 225,816. Specifications 17118/14 and 163,733 also are referred to.
Patent GB-1511232-A (GB)
Title: Piston and cylinder machines
IPC: F02B75/26
Filed: 1974-05-06
Abstract: 1511232 Pistons; swash plate mechanism; cams R J SEARLE 2 May 1975 [6 May 1974 14 May 1974 5 June 1974 19 June 1974 23 July 1974 10 Aug 1974 12 Aug 1974 28 Aug 1974 6 Sept 1974 27 Sept 1974 8 Oct 1974 6 Nov 1974 19 Nov 1974 21 Nov 1974 (2) 26 Nov 1974 5 Dec 1974 11 Dec 1974 21 Jan 1975 5 Feb 1975 12 March 1975] 19784/74 21273/74 24914/74 27293/74 32450/74 35398/74 35428/74 37573/74 38936/74 42001/74 43563/74 47989/74 49958/74 50496/74 50497/74 51163/74 52629/7453495/742542/754892/75 and 10335/75 Headings F2T and F2K [Also in Division F1] The piston ring 14 of a swash plate engine piston 9 is located with radial freedom in a groove 15 and has a periphery 16 having the shape of the equatorial region of a sphere. The ring may have a tongue and groove gap 14b, 14c and be outwardly biased by a wave spring 18. The piston is restrained from relative rotation with the cylinder 11 by a connecting member 8 and ring 10, the ring being mounted on a bearing 7 having an axis Y 1  at an angle to shaft axis x with which the cylinder bore is parallel. The piston head may be oil cooled. In a poppet valve I.C. engine the valves 163 are carried in the piston crown and operated by a face cam 169 acting through bucket tappets 167 and roller followers 165. The cam is driven by epicyclic gearing 171 having a stationary sun wheel 170.
Patent GB-147854-A (GB)
Title: Improvements in cathode tube generators
IPC: H03F1/13
Filed: 1920-07-09
Abstract: 147,854. Ges. f³r Drahtlose Telegraphie. Oct. 25, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Electric oscillations, producing.- Thermionic valves are stated to be liable in some circumstances, particularly when a number of valves are used in parallel, to produce oscillations of a wave-length different from that desired. These undesired oscillations are explained by the influence of the internal capacities of the valves in combination with the coupling-elements, and are eliminated by the interposition of auxiliary condensers, inductances or resistances. Fig. 2 shows three geuerators 1, 1<a>, 1<b>, the cathodes 3, 3<a>, 3<b>, and also the grids 4, 4<a>, 4<b> being connected together. The anodes are connected to a common lead 10 through inductances 11, 12, 13 preferably of different values. Alternatively, the anodes may be connected together and the gride connected to a common lead through corresponding inductances, or the two methods of connexion may be combined. In further arrangements, the anodes, or the grids, or the cathodes, may be connected together through inductances, or these methods of connexion may bo combined. In some cases the inductances required are of such low value that simple conductors may be used instead of special coils to connect the grids or anodes.
Patent GB-1183832-A (GB)
Title: Improvements in Spring Separators.
Inventor: IRVING KENNETH
IPC: F16F1/20
Filed: 1967-05-01
Abstract: 1,183,832. Leaf springs. FOTHERGILL & HARVEY Ltd. 18 April, 1968 [1 May, 1967], No. 20063/67. Heading F2S. The element shown in Fig. 2 is a so-called leaf spring button of which the boss 7 fits an aperture in one leaf 3, Fig. 1 (not shown), of a laminated leaf spring so that the flat part 4 can separate such a spring leaf from an adjacent leaf. The button is made from a fluorocarbon resin, such as P.T.F.E., in sheet form in which the boss 7 is formed by a pressing or drawing operation. The boss, necessarily hollow, may either be closed-ended as shown or open-ended (Fig. 3, not shown) and before use a rubber or like plug 6 is inserted in it.
Patent GB-740018-A (GB)
Title: Pneumatic means for emptying silos and conveying powdery or granular goods
IPC: B65D88/72
Filed: 1953-07-20
Abstract: 740,018. Pneumatic conveyers ; unloading material from storage chambers by fluidization. HERMANNS, W. July 20, 1953, No. 20086/53. Classes 78 (1) and 78 (4). The How of powdered or granular material from a container, or along a channel having an inclined bottom, is facilitated by resting on its bottom flexible pipes 15 with air-permeable walls and supplying air to these pipes. The pipes, which may be made of asbestos, may rest in the troughs of the corrugated bottom 19 of the containei or of a corrugated support placed on the bottom. The container 2 is pivoted at 3 and provided with means 4 for tilting it. A compressed air pipe 9 mounted on the underside of the container is connected at one end by a flexible pipe 10 to a compressed air line 8 and at the other end to a transverse pipe 14. This pipe is connected to the ends of the pipes 15. A pipe 13 leading to the discharge 7 also is connected to the pipe 10. Reference has been directed by the Comptroller to Specification 661,681.
Patent GB-148198-A (GB)
Title: Continuous current dynamo electric machines
IPC: H02K23/62
Filed: 1920-07-09
Abstract: 148,198. Boin, R. Oct. 13, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Rotary machines; pole-pieces.-The field-magnet pole-pieces c of a generator or motor are formed either with a varying air-gap between them and the external ring armature, Fig. 1, or concentric and narrowing towards the ends, Fig. 3. The armature is composed of a series of bobbins d, the ends of the coils being joined to the segments e, Fig. 2, of a commutator rubbed by brushes f. Either the field-magnet or the armature may rotate. The invention is stated to be applicable to high-voltage generators for X-ray tubes.
Patent GB-201542-A (GB)
Abstract: 201,542. Soc. des Moteurs Salmson, (SystÞme Canton-UnnÚ). July 26, 1922, [Convention date]. Mechanical interrupters; contacts.- Highspeed ignition contact-breakers comprise a singlechannel-shaped metal sholl having a straight web parallel to the rolling fibres of the metal, and a core of light material secured between the flanges, the whole approximating to a solid of uniform strength. The contact arm 5, Fig. 1, is mounted on a pivot 2 secured to the rotary interrupter plate 1 and consists of a V-section metal stamping containing a fibre core 5, Fig. 3. The lever 5 carries a projection 14 at one end which is depressed by fixed cams during the rotation of the plate to separate contacts 6, 7, the lever 5 being returned by a blade spring 9 connected to a support 11. To minimize centrifugal effects on the breaker arm, the pivotal axis is made to coincide with its centre of gravity.
Patent GB-704187-A (GB)
Title: An improved clamping device for plate-stretching machines
IPC: B21D25/04
Filed: 1951-08-27
Abstract: 704,187. Stretching. BOHLER & CO. AKT.- GES., GEB. Aug. 27, 1951 [Aug. 26, 1950], No. 20187/51. Classes 83 (3) and 83 (4) Work-holders. - A clamp for a sheet stretching machine comprises a body 1 to which are pivoted, by abutments 2, gripping plates 3 with corrugated faces. The plates are swung to grip the sheet by depression of a lever 6. The abutment portions of the body 1 are dimensioned to provide flexibility and to yield during working to compensate for difference in sheet thickness.
Patent GB-1506596-A (GB)
Title: Production of tertiary alkyl ethers
Inventor: ANCILLOTTI F
IPC: C07C41/00
Filed: 1975-05-13
Abstract: 1506596 Removing tertiary olefins from hydrocarbon streams SNAMPROGETTI SpA 13 May 1975 [21 May 1974] 20221/75 Heading C5E [Also in Division C2] An olefin having a double bond on a tertiary carbon atom, e.g. isobutene or isoamylene, is separated from a hydrocarbon stream by reacting with a primary alcohol (e.g. methanol) in a first reaction zone at a temperature in the range from 50 to 90 C. and at a pressure in the range from 10 to 30 atmospheres absolute in the presence of an etherification catalyst, whereby the olefin partially reacts with the alcohol to produce a tertiary alkyl ether; separating at least part of the thus formed ether from the unreacted olefin and alcohol; and feeding the unreacted olefin, other hydrocarbons and alcohol to a second reaction zone wherein the reaction is carried out in the liquid phase at a temperature in the range from 60 to 100 C. and a pressure in the range from 15 to 40 atmospheres absolute in the presence of an acid macroreticular resin as catalyst, to complete the production of the tertiary alkyl ether, and separating the ether by distillation, leaving a hydrocarbon stream substantially free of tertiary olefin. A suitable apparatus is described. Reference has been directed by the Comptroller to Specification 1,176,620.
Patent GB-1507723-A (GB)
Title: Acyloxymethyl cephalosporin esters
IPC: C07D257/04
Filed: 1975-05-14
Abstract: 1507723 Acyloxymethyl esters of tetrazolylthiomethyl-cephem acids ELI LILLY & CO 14 May 1975 [20 May 1974] 20263/75 Heading C2C Novel compounds of the Formula (I) wherein R 1  is methyl; and R 2  is H or C 1 -C 4  alkanoyl, may be prepared by reacting a compound of the Formula (II) with a halomethyl ester of an alkanoic acid of the formula X-CH 2 -O-CO-R 1 , wherein X is Cl, Br or I. Pharmaceutical compositions useful as orally effective antibacterial agents comprise compounds of Formula I wherein R 1  is C 1-4  alkyl, and R 2  is H or C 1-4  alkanoyl, in association with a pharmaceutically acceptable carrier therefor.
Patent GB-824884-A (GB)
Title: Fuel oil or other liquid filters
Inventor: HEYWORTH JOHN
IPC: B01D35/02
Filed: 1957-06-27
Abstract: 824,884. Liquid filters. LUCAS (INDUSTRIES) Ltd., J. June 6, 1958 [June 27, 1957], No. 20272/57. Class 46. In a filter, liquid enters through the pair of grooves d and flows circumferencially through the small helical passages f, formed by the contiguous portions of the wire coil a and the core b, then passes out through the open ends of grooves e. Solid particles are intercepted by the passages f.