baber/WOPTO huggingface dataset:
Patent GB-1124425-A (GB)
Title: Roller system of recording device
Inventor: SKALICKY BOHUSLAV
IPC: G01D15/28
Filed: 1966-06-09
Abstract: 1,124,425. Recording-apparatus. CESKOSLOVENSKA AKADEMIE VED. June 9, 1966 [June 16, 1965], No.25690/66. Heading G1J. Recording-apparatus comprises a supply of record tape 22 inside a drum 1 which has a longitudinal slot 16 through which the tape passes out and round the periphery of the drum 1, a winding-on roller 6 journalled in sleeves 5 carried by the end plates of the drum 1, a cover 17 in the slot 16 pivoted on the sleeves 5, pressure rollers 25 bearing on the roller 6 and tape severing mechanism, the tape 22 being wound on a spool 21 frictionally held by brake pins 20 carried by spring strips 19 depending from the cover 17. The drum 1 is rotatably mounted by stub shafts 2, 3 in a frame 4 and during recording is driven by a motor 32 through a clutch 33 by means of a notch 15 in the rim of one end of the drum 1 when the notch 15 is engaged by a spring- urged pawl 11 pivoted on a flanged disc 10 secured to a driving gear 8 rotatably mounted on the stub shaft 2 and driven through the clutch 33. To load the apparatus with record tape initially, the cover 17 is swung open and a spool 21 of tape 22 is fitted friction-tight on brake stubs 20 carried by spring strips 19 depending inwardly from the cover 17 which is then closed and held by ball catches 29. The tape 22 emerging from the slot 16 is wound round the drum 1 and passed between the rollers 6 and 25 to a cutting bar 27. When the recording has been completed on the section of tape held round the drum, this section is wound off while a new section is wound on by first disengaging the pawl 11 from the notch 15 and then turning the disc 10 until the pawl 11 enters the notch 15 again. The driving gear 8 then drives a driven gear 7 secured to the winding roller 6 while the clutch 33 and brake stubs 20 slip.
Patent GB-223942-A (GB)
Title: Improvements in or relating to bodies for motor and other vehicles
IPC: B60J1/08
Filed: 1924-07-08
Abstract: 223,942. Baehr, G. Oct. 3, 1923, [Convention date]. Vehicle windows.-One of the window frames in an arrangement permitting vehicle windows to be swung down on the inner faces of the doors, has tabs 29 mounted on pivots 30 provided in the corresponding rebate 26 in the door 25, the frame being provided with a pivot spindle 32 for the adjacent window, which spindle is provided with means for attachment to the hood. A flap 27 covers the lowered windows. Specification 222,835, [Class 108 (i), Road vehicles, Body details &c. of], is referred to.
Patent GB-392045-A (GB)
Title: Improvements in and relating to the reduction of damping in thermionic valve circuits
IPC: H04B1/16
Filed: 1932-09-15
Abstract: 392,045. Valve amplifying circuits. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Germany. Sept. 15, 1932, No. 25713. Convention date, July 15. [Class 40 (v).] The degree of damping in a thermionic amplifier employing screen-grid valves is reduced by coupling the screen-grid circuit of one valve to the same circuit of the succeeding stage. The Figure shows a two-stage highfrequency amplifier in which the screen grid circuits are coupled by a variable condenser 19. The condensers 7, 15 are such as only to byepass part of the high frequency on the screen grid to the cathode. By this means the feedback is constant over a band of frequencies and waveband changing can be effected without changing the reaction coupling. The latter can be obtained by resistance or inductive coupling between the screen-grid circuits. The invention is applicable to low- or high-frequency amplifiers.
Patent GB-757344-A (GB)
Title: Improvements in and relating to rotary cam actuated electrical switches
Inventor: WALTON GORDON HERBERT FRANCIS
IPC: H01H19/63
Filed: 1953-09-17
Abstract: 757,344. Rotary switches. DIAMOND H SWITCHES, Ltd. Sept. 14, 1954 [Sept. 17, 1953], No. 25737/53. Class 38(5) A cam-operated switch for controlling a two-element heating unit has contacts 10, 12 on blades 2, 3 controlled by projections 26, 28 on the face of a cam 5, the edge of which controls a blade 1. The latter is coupled by an insulating bar 32 to a blade 30 carrying a contact 34 controlling a pilot lamp. Contact 10 has a central "off" position between two fixed contacts 11, 19. The various fixed contacts 11, 15, 19 and 36 may be of copper strip with silver inlays or may be silver contacts riveted to brass members.
Patent GB-1114003-A (GB)
Title: Improvements in or relating to looms
Inventor: HOLDEN ERIC
IPC: D03D45/20
Filed: 1965-06-18
Abstract: 1,114,003. Weft replenishing; stop motions. ASHTON BROS. & CO. (HOLDINGS) Ltd. 1 June, 1966 [18 June, 1965], No. 25797/65. Heading D1E. In a loom having a cop winding mechanism which feeds cops to a magazine a pivoted plate 11 acts on the warp stop motion 13, 14 when there is only one cop. left in the magazine.
Patent GB-795188-A (GB)
Title: Improvements in or relating to current transformers
IPC: H01F27/42
Filed: 1954-09-06
Abstract: 795,188. Transformers with inductors; transformer systems. HOBSON, A. Aug. 17, 1955 [Sept. 6, 1954], No. 25818/54. Classes 38 (2) and 38 (4). In a current transformer the major part (say 95 per cent) of the primary ampere turns is expended in magnetizing the core of the transformer. This is occasioned by constructing the core 2 of a material having a lower than normal permeability; providing the core with air gaps 2a; or making the core partly or wholly non. magnetic. In order to give the secondary current the waveform that exists with a normally constructed current transformer a high impedance 4, which is preferably purely inductive, is placed in series with the secondary winding 3 and the load terminals 5. The impedance 4, being of high ohmic value, makes the secondary current substantially independent of the impedance of a measuring instrument connected across the terminals 5.
Patent GB-1195684-A (GB)
Title: Yarn Tuft Formation for Tufted Fabrics
Inventor: EVANS RAYMOND VICTOR
IPC: D05C15/00
Filed: 1966-06-10
Abstract: 1,195,684. Tufting apparatus. SINGER-COBBLE Ltd. 29 June, 1967 [10 June, 1966], No. 25876/66. Heading D1G. Rows of U-shaped yarn tufts are formed in a support element or backing fabric 15 from reels 11 of yarn ends, supported on an endless band or chain 12 by rows of needles 14 on bars 13 adapted to be actuated vertically by a displacement means 16 at a tufting station. The projected yarn ends are at a first penetration gripped 'by gripper means 17 and held whilst the needles are retracted and then re-inserted with loops of yarns at a spaced position. These loops are engaged and cut by looping and cutting means 18 so that on the next withdrawal of the needles and release of the gripper means 17 a row of U-shaped tufts are left. The single limbs of the tufts may be separated by one or more tuft loops by omitting the cutting operation and merely holding the loops as required.
Patent GB-1461072-A (GB)
Title: Electrochemical cells having a liquid alkali metal electrode and solid electrolyte
IPC: H01M10/39
Filed: 1973-01-03
Abstract: 1461072 Cell with liquid alkali metal anode ELECTRICITY COUNCIL G ROBINSON and I W JONES 2 Jan 1974 [3 Jan 1973] 25888/74 Divided out of 1461071 Heading H1B The Specification describes and claims the cell shown in Fig. 2 of the parent Specification 1,461,071, which has a reservoir portion for the cathodic region.
Patent GB-762670-A (GB)
Title: Improvements in or relating to the production of porous metal bodies
IPC: B22F3/11
Filed: 1953-09-18
Abstract: Catalysts are precipitated in porous meal bodies which have been formed by metallizing a non-metallic lattice core and sintering the metallized structure; the lattice core may remain in the body or may be decomposed or eliminated before or during the sintering process which may take place in an inert or reducing atmosphere and under pressure.  Several cores, of similar or dissimilar composition and structure, may be sintered together and the core or body may be shaped before, during or after sintering. Metallization may be by vapour deposition, dipping or electro deposition or by vapour deposition followed by electro deposition; the core may be a close or loose fabric of glass, synthetic fibres or textile threads; decomposable metallic compounds may be introduced into the core or skeleton before, during or after sintering, e.g. nickel, carbonyl may be introduced to form nickel.ALSO:Porous metal bodies are formed by metallizing a non-metallic lattice core and sintering the metallized structure; the lattice core may remain in the body or may be decomposed or eliminated before or during the sintering process which may take place in an inert or reducing atmosphere and under pressure. Several cores, of similar or dissimilar composition and structure, may be sintered together and the core or body may be shaped before, during or after sintering.  Metallization may be by vapour deposition, dipping or electrodeposition or by vapour deposition followed by electro deposition; the core may be a close or loose fabric of glass, synthetic fibres or textile threads; decomposable metallic compounds may be introduced into the core or skeleton before, during or after sintering e.g. nickel carbonyl may be introduced to form nickel.  By introducing alloys into the core, a sliding bearing material may be formed or, if the metallizing metal is a bearing alloy, oil may be introduced to form a self-lubricating bearing material; magnetic bodies may be formed by filling the interstices with suitable metals or alloys; catalysts may be formed by precipitation reactions within the bodies; or accumulator plates may be formed when the metal is nickel by treatment with nitric acid and conversion of the nitrate to hydroxide.
Patent GB-457849-A (GB)
Title: An improved gear-ratio indicator and/or control device
IPC: F16H59/46
Filed: 1935-04-30
Abstract: 457,849. Controlling change speed gearing. CONSTANTINESCO, G., Oxen House, Torver, Coniston, Lancashire. April 30, 1935, No. 25992/36. Divided out of 457,761. [Class 80 (ii)] [See also Groups XIX and XXVI] A device responsive to changes in speed relationship between two rotary members 1, 2 comprises a third member 3 arranged between or encircling the rotary members 1, 2 and driven by peripheral contact therewith, the member 3 being elastically deformable, and its axis capable of translational movement in response to such changes in speed relationship. In Fig. 1, a metallic elastic ring 3 is moved from a central position in either direction to complete electric contacts 4 when the predetermined speedrelationship changes. The circuit is completed through one of the rotary members 2, and may light a warning lamp, or actuate an electromagnet or servomotor which may, for instance, in the case of a change-speed gear, either obstruct gear engagement, or accelerate or decelerate the prime mover to restore the speed relationship. In Figs. 5 and 7, the rotary members comprise cones 7, 8, driven respectively by the driving and driven shafts of a change-speed gear and having a responsive device 9 corresponding to each ratio in the gear. Each device comprises a pair of contacting metallic rings 9, which, when the desired speed relationship exists, are urged towards opposite sides of the central plane through the axes of the cones, to complete an electric circuit through themselves and contacts 10, the cones 7, 8 being insulated from their shafts. Lack of synchronism urges one or other of the rings 9 towards the said central plane and breaks the circuit.
Patent GB-1343191-A (GB)
Title: Methods of thermoplastic xerographyand apparatus thereofor
IPC: G03G5/022
Filed: 1971-04-19
Abstract: 1343191 Electro-photography XEROX CORP 19 April 1971 [10 April 1970] 26012/71 Heading G2H In a method of surface deformation by successively uniformly charging, imagewise exposing and softening a thermoplastic surface of a member comprising a photoconductive layer and a thermoplastic layer or a combined photoconductive and thermoplastic layer, softening is effected in the presence of an electric field which is uniform and/or periodically varying. Exposure may be through an optical screen. A second uniform charging may be effected after exposure. Softening (which may be by heat or solvent) may be effected during uniform exposure. The field may be formed between an earthed substrate and a continuous electrode, which is uniform (18), Fig. 1D, (not shown), or non-uniform 34, Fig. 2D, or a plurality of electrodes 42 and 44, Fig. 3.
Patent GB-260325-A (GB)
IPC: H03F1/16
Abstract: 260,325. Igranic Electric Co., Ltd., and Willans, P. W. July 2, 1925. Thermionic amplifiers.- In an amplifier in which inductances i<1>, i<2> are connected in the grid and plate circuits respectively of a valve v, the electrostatic coupling between the elements of the amplifier is neutralized by auxiliary inductances a<1>, a<2>, connected in a closed circuit with one or more condensers c<3> and coupled respectively to the inductances i', i<2>. The circuit containing the auxiliary inductances may be connected to an earthed point, such as the filament circuit. The invention is applicable to two or more valves in cascade. Electromagnetic coupling may be simultaneously neutralized by inserting inductance in parallel with the condenser. Specification 260,324 is referred to.
Patent GB-637749-A (GB)
Title: Improvements in the mounting of components of electrical equipment on supports
IPC: H02B1/04
Filed: 1947-09-25
Abstract: 637,749. Switch contacts. TELEMECANIQUE ELECTRIQUE. Sept. 25, 1947, No. 26072. Convention date, Oct. 1, 1946. [Class 38 (v)] Electrical components, such as contacts, which must be insulated from each other, are mounted on an insulated bar 4 by means of bolts or screws, insulated from at least one of the components. Contact supports 1, 2 and 6 are secured to the bar 4 by bolts 7 having removable sheaths 9, of insulating plastic material, covering the heads and about twothirds of the shanks of the bolts. The sheaths may be continued by insulating sockets 101 which have bevelled edges adjacent the sheaths. Differences in the sizes of the bolt-holes in different components may be compensated for by the use of an insulating socket 10. The supporting means for the bar 4 may also be fixed to the contacts in the same way.
Patent GB-429870-A (GB)
Title: Improvements in or relating to ventilating devices for airing chambers for protection against poison gas
IPC: A62B13/00
Filed: 1934-09-11
Abstract: 429,870. Diaphragm air pumps. DEGEA AKT.-GES. (AUERGES), 16, Rotherstrasse, Berlin. Sept. 11, 1934, No. 26097. Convention date, Sept. 25, 1933. [Class 8 (i)] [See also Group X] A ventilating device for airing chambers for protection against poison gas comprises a rigid casing a, b enclosing a piston disc i connected to the casing by an annular flexible diaphragm k, and having a lever m for moving the disc, valves n, o controlling the passage of air from an inlet h through a filter e to a duct p leading to the protective chamber.
Patent GB-902606-A (GB)
Title: Machine for inserting articles into cartons or boxes
IPC: B65B35/20
Filed: 1960-07-27
Abstract: 902,606. Packaging machines. HESSER, MASCHINENFABRIK A.G., FR. July 27, 1960 [Aug. 21, 1959], No. 26122/60. Class 94(1). A packaging machine comprises three conveyers 1, 2, 3 carrying respectively cartons &c. 5, pockets 7 for material, such as spaghetti, to be packaged, and sliding plungers 12. The pockets 7 each contain a sliding block 8 which is engaged by a spicot 12 on an advancing plunger and acts as a piston to force the material into a carton. The spicot is rotatable to form a bayonet connection with the block 8 so that it may also withdraw it. Magnetic means then retain the block against the pocket rear end. A belt 27 locates the material from above during transfer.
Patent GB-170741-A (GB)
Title: Improved method of constructing slabs and walls and floors formed therewith
IPC: E04B2/66
Filed: 1920-09-13
Abstract: 170,741. Addison, H. Sept. 13, 1920. Building-slabs, special shapes of; flooring-slabs.-Walls and floors are formed. of flanged reinforced-concrete slabs having two longitudinal ribs C of the same depth as the flanges and a single transverse rib H of less depth. The ribs and flanges are reinforced by a central strip of meshed or expanded metal, and the flat body is reinforced by three such strips. To form a wall, the slabs of storey height are placed in pairs between grooved pillars with the deeper ribs touching. Preferably the flanges at the bed joints F are narrow so that the air cavity is continuous. For floors, the slabs are made of a length equal to twice the pitch of the walls or beams M, and their sides - and ends may be rabbeted.
Patent GB-241908-A (GB)
IPC: G06G1/12
Filed: 1925-10-20
Abstract: 241,908. Pecquet, J. H. A. Oct. 21, 1924, [Convention date]. Slide rules. - An instrument for determining the mean speed of a vehicle comprises a stationarv base A with logarithmic scales B, C graduated to represent distance and mean speeds respectivelv and a relatively rotatable disc D with a logarithmic scale E representing hours and minutes. The time taken to travel the distance. run is set opposite the distance and the mean speed is read directly on the scale C opposite a pointer F or F' on the disc D corresponding respectively to t'he time read in hours or minutes.
Patent GB-996899-A (GB)
Title: Improvements in or relating to aircraft arrester means
Inventor: MITCHELL JOHN ROTHWELL
IPC: B64F1/02
Filed: 1963-07-03
Abstract: 996,899. Aircraft arresting gear. C. Q. PARACHUTE CO. Ltd. June 12, 1964 [July 3, 1963], No. 26296/63. Heading B7G. Aircraft arrester gear comprises a parachute located on or near a landing strip, and means enabling an aircraft moving along the runway to pick up and deploy the parachute. Two or more parachutes may be used, disposed in packs secured to the ground, or in pits, buildings or vehicles on or adjacent the landing strip, their rigging lines being connected to a wire, cable or chain held above the runway by discs mounted on it, and preferably arranged in a loop. The wire, cable or chain is engageable by an arrester hook carried on an aircraft. Alternatively the rigging lines are connected to a net stretched across the runway in the path of the aircraft.
Patent GB-918067-A (GB)
Title: Improvements in and relating to welding together sheets of thermoplastic material orshaped articles made therefrom
IPC: B29C65/38
Filed: 1961-07-20
Abstract: 918,067. Seaming non-metallic sheet material. FARBWERKE HOECHST A.G. July 20, 1961 [Aug. 18, 1960], No. 26404/61. Class 42 (1). [Also in Group XVII] Apparatus for welding thermoplastic parts comprises a support 4 for the parts to be welded, and a welding electrode 16, Fig. 2, which is reciprocable towards and away from the support 4, heated by a current impulse generator 6 whilst the electrode is pressed against the thermoplastic parts, made of a metal or alloy having a specific electrical resistance from 5-15. 10<SP>-6</SP> ohms centimetres and an elasticity modulus from 16,000-21,000 kilograms per square centimetre, and mounted on a support 2 having conduits 11 and a duct 21 through which cooling fluid is circulated, the support 4 being pivotally mounted, preferably on a ball joint 5, to obtain an even pressure distribution over the regions to be welded. In the embodiment shown for welding a thermoplastic cover to the rim of a thermoplastic container held in the support 4. The aluminium support 2 is mounted on a press 1 which is actuated by a pedal 7. A screw 9 enables the depth of penetration of the electrode 16 into the thermoplastic to be adjusted. There are also provided an aluminium fastener 13 for holding the current supply leads 12 in position, insulating sheets 14, 18 of polytetrafluoroethylene (p.t.f.) and glass fibre fabric coated with p.t.f., p.t.f. rings 15, 17 to hold the electrode in position, an aluminium cover 19, a rubber packing 22 and a cover 23 for the duct 21, an insulating press board member 24, and a copper angle 25 to which a cable from the generator 6 is connected. Alternatively, for welding sheets together a rod-shaped electrode is provided. The electrode may be made of iron, nickel or certain steels and the thickness of the sheet adjacent thereto is from 0.2-3 mms. The thickness of the electrode is from 0.5-5 mms. The electrode may be galvanized or have a layer of material having a higher coefficient of heat transmission deposited thereon to improve the heat transmission to the parts to be welded. The material, e.g. brass, of the current supply leads has a thermal conductivity of from 0.1- 0.3 calories per cm. per second per degree higher than that of the electrode which is from 0.09- 0.16 calories per cm. per second per degree. Preferably, the electrode has rounded edges to help prevent thinning of the welded seam due to the pressure exerted thereby. The support 4 may be provided with a continuously heated electrode or, to weld two layers together having a thickness of more than 2 mms., a second welding electrode of similar construction to the first may be mounted on the support 4. In a modification, the electrode may be provided as a grid structure for welding a web of articles formed by deep drawing in multi-cavity moulds.
Patent GB-512291-A (GB)
Title: Improvements in and relating to drilling and like machine tools
IPC: B23B39/22
Filed: 1938-09-09
Abstract: 512,291. Drilling-machines. BREVETS AEROMECANIQUES SOC. ANON. Sept. 9, 1938, No. 26411. Convention date, May 19. [Class 83 (iii)] In drilling and like machines the work pieces are positively engaged with work-holders which are then withdrawn by yielding means into a support, the yielding means permitting the holders to be withdrawn by different amounts according to the extent of engagement of the work with the holders. The work, such as a fuse body 1 for a shell, is screwed by hand into a holder 2 radially slidable in a turret 3 and provided with an inner head 2' engaged by a spring 7 which tends to draw the holder inwards and clamps a projecting flange 1<1> of the work against a bush 8. A projection 9 in each holder facilitates inserting of the work. A key 10 on the holder slides in a slot in the bush to prevent rotation of the holder. Six holders spaced 60 degrees apart are provided on the turret and a fixed cam 11 is mounted on the axle 13 which rotatably supports the turret in order to engage the heads 2<1> and release the work at the two top stations. The turret consists of two parts held together axially by screws 6, Fig. 3. The work is rough drilled at 4 and finish drilled at 5 by opposed pairs of drills retracted by springs 41, 41<1> and fed by levers 37, 37<1> rocked by tappets 43 and face cams 42 on a rotating shaft 22, adjustment of the tappets being provided for at 44. The drills are driven by pulleys 39 and belt 38 from two electric motors M, M' and a further belt drive 31 from the motor M' drives the shaft 22 through double reduction worm gearing 32, 35. Turrets.-A six-toothed ratchet 15 keyed to the turret 3 is actuated by a pawl 17, Fig. 5, pivoted to a lever 18 moved in one direction by a spring and in the other direction by a cam 21 on the shaft 22 acting through a tappet 19. A locking bolt 24 on a lever 25 is also actuated by a spring 26, a tappet 27 and a cam 29 on the shaft 22. In operation, work pieces are removed from and inserted in the holders 2 at the top stations by hand, the clamping of the work against the bushes 8 rendering it unnecessary to screw each work piece to the same extent into its holder. The turret is then indexed 60 degrees by the pawl 17 and locked by the bolt 24, after which the drills are advanced to rough drill two opposed holes in the work at 4 and finish drill the holes at 5. Cooling cutting-tools and work; catching and removing cuttings.-A blast of air is directed on the drills by a pipe 47 controlled from a valve 45, and the cuttings are ejected by conduits 46.