baber/WOPTO huggingface dataset:
Patent GB-478211-A (GB)
Title: Improvements in or relating to radio and like high frequency transmission line arrangements
IPC: H01Q5/00
Filed: 1936-07-13
Abstract: 478,211. Wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 13, 1936, Nos. 19457 and 19458. Convention dates, July 13, 1935 and July 17, 1935. [Class 40 (v)] The impedances of a H.F. transmission line and a load, such as a radiating aerial, are matched at more than one operating frequency, an extra matching impedance being inserted for each additional frequency by switching or being permanently connected but inoperative on selected frequencies. In one embodiment the inductance 3, is connected across the line 2, and the line and load 1 are matched thereby at a first frequency. For matching at a second frequency the switch 4 is moved to add an inductance 5. The method may be applied to systems using more than two different frequencies ; the switches may be remotely controlled and the impedances may comprise single or double line sections, capacities &c. In other embodiments line sections &c. are connected permanently to the line at calculated positions and arranged to present an infinite impedance to the frequencies other than that for which they are provided for matching purposes.
Patent GB-314988-A (GB)
Title: Improvements in apparatus for use in obtaining mean values
IPC: G01D1/02
Filed: 1929-06-25
Abstract: 314,988. Landis et Gyr Soc. Anon. July 7, 1928, [Convention date]. Counters actuated by electric and magnetic means.-An integrating device for recording apparatus for use in obtaining mean values and having a writing member which is moved from a zero position along a path and is returned thereto at regular time intervals, is provided with means for registering the frequency of the overpassing of individual sections of the path by the writing member during the return of the member to the zero position. A shaft 2 has mounted on it a gear wheel 3 in connection with a source of power for returning the shaft to zero, a gear wheel 4 driven by an electricity meter, and a guide wheel 5. Over the guide wheel 5 is placed a metal band 7 which passes through a tube 8 and has fixed to it an arm 10 extending through a longitudinal slot in the tube 8 and carrying the writing member 9. The writing member 9 is brought into operation by a rod 13, actuated by time mechanism at the same time as the gear wheel 3 commences to return the shaft 2 to zero, to record on the paper strip 11. The shaft 2 bears on an extension a drum 14 in which are inserted pins 15, with each of which is associated a pair of contacts 27, 28 each mounted on a spring 25, 26 respectively, the springs 26 being each connected to the relay of a counting mechanism corresponding to the particular spring. A bail 17 pivoted at 16 in the frame 18 has a lateral arm 19 pressed against the action of a spring 20 by a bell-crank lever 22 engaging over its edge 21. The lever 22 is linked by means of a connecting rod 23 to the rod 13. Motion of the shaft 2 and the writing member 9, through the gear wheel 4 driven by the electricity meter, entails motion of the pin 15 over the springs 25 without contact owing to the writing member 9 being moved to the position shown in dotted lines in Fig. 1, by the time mechanism referred to above, thus causing rotation downwards of the bail 17. When the writing member and drum return to their zero positions at regular time intervals through the gear wheel 3, a pin 15 strikes the corresponding spring to put the corresponding contacts 27, 28 into engagement so as to energize a relay and operate the corresponding counting train. Specification 215,768. [Class 106 (iv), Indicating &c.], is referred to.
Patent GB-311978-A (GB)
Title: Compressing air for spraying devices
IPC: B05B7/24
Filed: 1928-07-05
Abstract: 311,978. Johns, F., and Mesnard, BJuly 5, 1928. Coating-machines. - Air is compressed for spraying paint &c. by one of the cylinders of a combustion engine, in which a valve 2 is substituted for a sparking-plug. The air is forced through a vessel 4 containing filtering material and fitted with a gauge 7 and relief valve 8, and. passes through a flexible hose to the spray gun 10, to which paint is supplied by a pipe 11.
Patent GB-611707-A (GB)
Title: Improvements in and relating to electronic valve circuits for interchanging power between alternating and direct current circuits
IPC: H02M1/02
Filed: 1943-11-22
Abstract: 611,707. Converting. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 22, 1943, No. 19497. Convention date, Nov. 23, 1942. [Class 38 (ii)] . In a converting arrangement comprising valves 22, 23 having cathode-immersed ignition electrodes 26 and arc pick-up electrodes 27 connected to a common excitation circuit 28, the latter is adapted to provide ignition impulses of short duration followed by a voltage wave of smaller amplitude but extending over a substantial part of the positive portion of the anode-cathode cycle. The arc is thus maintained at the electrodes 27 to an extent which permits of regulation of the converter by phase-adjustable voltages applied to grids 27a. The excitation circuit comprises two transformers 36, 38, the primaries of which are energized from different phases of the supply network 12, one of them through a wavedistorting network 33, 34, whereby its associated secondaries 39, 40 are caused to produce sharp voltage peaks, whilst the other produces phase displaced sinusoidal voltages in its associated secondaries 41, 42 which are respectively connected in series with the secondaries 39, 40.
Patent GB-1148903-A (GB)
Title: Lawn edging attachment
Inventor: HALL JOHN ALFRED
IPC: A01D43/16
Filed: 1965-05-08
Abstract: 1,148,903. Edge trimmers for lawn mowers. 28 July, 1966 [8 May, 1965], No. 19501/65. Heading A1F. An edging attachment for a lawn mower comprises a support structure 1 mountable or mounted on the mower and carrying a rotary cutter arranged to be driven from the mower, the cutter consisting of blades 2a eccentrically mounted on a driven member such as pulley 9. Pulley 9 is driven by belt 11 from pulley 12 mounted on the motor driven shaft or clutch shaft 13 of the mower. The support structure comprises a bracket 21 clamped by means of a wing nut to the mower side plate and having a depending lug 21a engaging with the grass box mounting location and carrying a socket 16 from which the shaft 15 of the rotary cutter is eccentrically mounted. A guard 19 for the rotary cutter is provided.
Patent GB-941975-A (GB)
Title: Improvements in and relating to magneto-electric actuators
IPC: H01H51/00
Filed: 1960-06-02
Abstract: 941,975. Electrically released switches; protective cut-out systems. R. MOSER, and J. MOREL. June 2, 1960 [June 8, 1959; May 9, 1960], No. 19548/60. Headings H2B and H2K. [Also in Divisions F2 and H1] In a polarized electromagnetic actuator having a magnetic shunt between polepieces and its winding surrounding one or both polepieces between the shunt and an armature, the shunt comprises two magnetic plates separated by a narrow gap of large transverse area. As shown in Fig. 1, the permanent magnet 8 engages the polepieces 1 and may be rotated about its centre within a copper cup 3 so as to adjust the biasing flux. The shunt comprises two magnetic plates 4 each fitted on to one polepiece 1 and having a large hole 5 for the other polepiece. The plates 4 are separated by a mica sheet and secured by rivets 7. The flux produced by the energization of the winding 10 may assist or oppose the flux of the permanent magnet 8 acting on the armature. In an alternative arrangement (Figs. 3 and 4) the magnetic plates 14a, 14b are riveted to an magnetic plate 22 and the permanent magnet 25 is clamped thereto by a hollow amagnetic screw 27 and resilient washer 26, the magnet being adjustable by rotation about the screw 27. The armature 33 is biased away from the ends 13 of the polepieces 12 by a frusto-conical spring 31 and a spring 36 carrying a weight 38 acts on the end of the armature spindle 32 in opposition to the spring 31. The armature is also guided by projecting studs 30 on a plastic plate 29 fitted over the polepieces 12. In Fig. 7, a device as shown in Figs. 3 and 4 is part of a circuit-breaker having a toggle linkage 61, 62 carrying a rod 74 which in the breaker closed position holds the spring 36 away from the armature spindle 32. Energization of the coil 28 allows release of the armature 33 so that its spindle 32 moves a lever 71 pivoted at 73 so as to release a latch 68 which in turn releases a catch 66 to open the contacts 60 due to the breaking of the toggle 61, 62 under the bias of a spring 65 on a rod 64. The spring 36 resets the armature 33 with a delay due to the action of a weight 38 and a plate 75 on the rod 64 engages the end 76 of the lever 68 to reset it on the catch 70 of the lever 71. The coil 28 may be energized from a core-balance transformer (Fig. 6) wound so that any unbalance between the fluxes produced by windings 45 energizes the secondary 47 shown in series with the coil 1 of a device as shown in Fig. 1 with contacts 42 which are opened when the armature 9 is released. A push-button 52 may be operated to complete a test circuit and effect operation of the device by unbalancing the primary currents and a bimetal 51 may also complete this circuit on overheating of the transformer.
Patent GB-369492-A (GB)
Title: Improvements in jigging mechanism for sieves, conveyors and like apparatus
IPC: B07B1/42
Filed: 1931-07-07
Abstract: 369,492. Sifting-apparatus. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. July 7, 1931, No. 19589. Convention date, July 11, 1930. [Class 117.] A belt-driven drum 3 adapted to reciprocate under the action of rotating masses and to drive reciprocating apparatus such as a sieve 1, is mounted on a spindle 2 carried by the sieve and is formed internally with a balance weight 4 and a rib 9. A counterbalanced arm 5 is also pivoted on the spindle and carries a heavy roller 8, which runs on the rib 9. The drum and arm are connected by bevel gearing so that the arm rotates in the opposite sense to the drum. The ends of the spindle are housed in the sieve near the bearings of the drum so that no bending of the shaft takes place. Modified constructions are described in which the arm 5 and roller 8 are replaced by (1) an eccentrically-weighted cage with rollers running on the rib 9 ; or (2) a roller cage in which the rollers are closer together on one side than the other ; or (3) an eccentrically-weighted disc 34, Fig. 8, bearing on the rib 9 by means of balls 36.
Patent GB-824771-A (GB)
Title: Improvements in or relating to looms
IPC: D03D45/20
Filed: 1956-06-25
Abstract: 824,771. Automatic weft replenishment. TISSOMAT A.G. June 25, 1956 [June 24, 1955], No. 19613/56. Class 142(2) A device for controlling colour selection in bobbin or shuttle changing looms comprises metal rings 17 protruding from rubber mouldings 13, one being mounted on each cell of a drop box; the rings make contact with plates on the shuttles, disposed to indicate the colour of weft used in the shuttle. Each ring is connected by a strip 14 to a bolt 19, the bolts being of different lengths and each being attached to a vertical bar which slides past a fixed contact as the box rises and falls. Another vertical bar is connected to a contact on the cell operated by a feeler in the shuttle to indicate the need for replenishment.
Patent GB-661248-A (GB)
Title: Cosmetic preparations for the skin
IPC: A61K8/92
Filed: 1949-07-27
Abstract: 661,248. Cosmetic. LANOLIN PLUS COSMETICS, Inc. July 27, 1949, No. 19687/49. Class 81 (i). A fluid stable homogeneous cosmetic solution comprises from 15 to 50 per cent by weight of lanolin in isopropyl palmitate. 2 per cent waxes such as spermaceti or cetyl alcohol and 10 to 15 per cent of refined mineral oil may be added. In one example, 35 parts of lanolin are dissolved in 65 parts of isopropyl palmitate and in the other are dissolved in 53 parts of isopropyl palmitate, 10 parts of mineral oil and 2 parts of cetyl alcohol. The lanolin and waxes are dissolved at 50‹ C. the solution cooled to 45‹ C. the mineral oil added and the product rapidly cooled to 30‹ C.
Patent GB-629487-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B11/06
Filed: 1947-07-23
Abstract: 629,487. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd., SCOTT, R. H., and HAYWARD, A. S. July 23, 1947, No. 19700. [Class 100 (iii)] A typographical composing-machine having a set of main magazines and a set of auxiliary magazines and independent mechanism for raising and lowering each set, each said mechanism including a rotatable member for transmitting a raising and lowering movement to a set, comprises a common rotary intermediate member and operating means connected thereto adapted first to couple said intermediate member to one or other of said rotatable members and then to impart a rotary movement thereto. The shift-frame 3, Fig. 1, of the main magazines 1 is raised or lowered by mechanism comprising a chain 9 attached at 9a to the shift-frame and at 9b to a pulley 10 freely mounted on a shaft 11 carried adjustably on screws 11a in slotted bearings 12 in the machine frame 5 and secured to a pulley 15 to which is attached at 16a a chain 16 fastened at 16b to an adjustable counterweight 18. The pulleys are rotated from a chainwheel 30, Figs. 1 and 3, through chains 29, 25 and spur-gears 21, 20. Similar mechanism (not shown) for actuating the auxiliary magazines is driven from a chain-wheel 30a. The wheel 30 is freely mounted on a shaft 32 and operatively connected to a disc 33 having slots 34. The wheel 30a is similarly connected to a slotted disc 33a. A hand lever 4 is pivoted to a sleeve 35 freely mounted on the shaft 32 and has projections 37, 37a which can be selectively engaged with a slot in the respective discs 33, 33a, whereupon the corresponding magazine shift-frame is raised or lowered by rotating the hand lever 4 upward or downward between stops 38 in a guard-plate 39. When the hand lever is moved to engage the disc 33a, a roller 42a abuts a flange 43a of the disc to swing a bar 41a pivoted at 40a to the hand lever and secured to a bar 44a having a boss 49a to which is secured a flexible cable 50a, whereby the cable is pulled to unlock the auxiliary magazine frame and extend a spring 46a which on disengagement of the hand lever from the disc pulls the bar 44a against a stop 48a to re-lock the frame. Similar mechanism below the hand lever and actuated by the roller 42 operates a similar cable 50 to unlock the main magazine frame 3 by means of a pivoted lever 51 engaging a locking bar 54. Specification 617,384 is referred to.
Patent GB-1041825-A (GB)
Title: Improvements in glass-melting
IPC: C03B5/167
Filed: 1963-05-17
Abstract: A method of melting glass or quartz in a furnace having a base outlet 3 for the molten glass or quartz, comprises supplying heat to the melt surface from burners 9 directed substantially horizontally above the melt surface and disposing raw materials for the melt in a thin annular layer on the melt surface, the inner periphery of said layer encircling but not covering said molten glass outlet and the outer periphery of said layer being spaced from the inner wall of the furnace.  The burners 9 are offset from the vertical axis of the furnace, Fig. 2 (not shown), and hence impart a whirling motion to the combustion product gases 45. The raw materials are charged from a shaking gutter 35 through a tube 38 into the furnace, the said tube being positioned in a gas outlet 13 coaxially disposed above the molten glass outlet. The rising, whirling combustion gases exert an expanding effect on the free-falling glass-forming particles which are finally deposited on the melt surface in a thin annular layer or zone 31, Fig. 2, having an inner periphery surrounding the melt surface 33 above the molten glass outlet and an outer periphery spaced from the furnace wall.  The to-be-melted or melted particles in said annular layer follow the trajectories 35, 36 and 37, enter the drawing cone 15, and are discharged to the drawing machine 21. The drawing cone <PICT:1041825/C1/1> comprises parts of molybdenum and is provided with a mandrel 17 and a tungsten heating element 23. The cone and coil are contained in an envelope 25 to which a supply of non-oxidizing gas is connected.  As shown at 27, non-oxidizing gas is supplied to the bore of the being-drawn tube.  The diameter of the annular layer or zone of the raw material may be maintained constant with varying particle size by adjusting the height A of the movable tube 38 above the melt surface.
Patent GB-1103564-A (GB)
Title: Improvements relating to the production of spandex artificial filaments
Inventor: WALE JOHN
IPC: D01F6/72
Filed: 1964-05-13
Abstract: 1,103,564. Making spandex filaments. COURTAULDS Ltd. 12 May, 1965 [13 May, 1964; 27 Nov., 1964; 11 March, 1965], Nos. 19863/64, 48231/64 and 10324/65. Heading B5B. In the production of spandex (i.e. segmented polyurethane) filaments by extruding a spandex precursor (i.e. a polyester- or a polyether-isocyanate reaction product) through a spinning jet into a coagulation bath containing a polyfunctional reagent (e.g. a diamine) capable of reacting with the precursor to form the spandex filaments, the filaments are stretched by at least 25% (preferably by at least 100%) after they leave the coagulating bath but before the reaction between the precursor and the reagent is completed. The precursor may be a polyesterpolyisocyanate reaction product the polyester component of which has been obtained by condensing a dibasic carboxylic acid with at least one glycol. The acid may be adipic acid or sebacic acid and the glycol may be ethylene glycol or propylene glycol. The spandex precursor may be a polyether-polyisocyanate reaction product, the polyether component of which may be a polyethylene-, polypropylene- or polytetramethylene glycol. The polyisocyanate component of the spandex precursor may be a diisocyanate such as m-phenylene diisocyanate, p-phenylene diisocyanate, p,p<SP>1</SP>- diphenyl methane diisocyanate or 2,4-tolylene diisocyanate. The polyfunctional reagent may be a primary aliphatic diamine such as ethylene diamine. The reagent may be dissolved in a liquid which is unreactive or is monofunctional in reaction with an isocyanate. The liquid may be an alcohol such as isopropyl alcohol. After the reaction between the precursor and the reagent is completed, the filaments may be relaxed before they are dried. After the completion of the reaction the filaments may be dried under tension at a temperature of at least 120‹ C., preferably at least 150‹ C. The filaments may be stretched by at least 100% in 2 stages before the reaction is completed. The concentration of the diamine in the coagulating bath may be not more than 10 grams per 100 c.c. of bath liquid.
Patent GB-924583-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/34
Filed: 1961-06-01
Abstract: 924,583. Automatic tobacco control. INDUSTRIAL NUCLEONICS CORPORATION. June 1, 1961 [June 7, 1960], No. 19876/61. Class 38 (4). In a cigarette-making machine the excess in a stream of tobacco 12 is removed by a revolving knife 16 which is positioned by a servo-system in accordance with the weight of the finished cigarette rod 26, and the output of the stream feed mechanism 10 is controlled by a second servo-system in accordance with the position of the knife 16. Thus, while the knife corrects short term irregularities in the tobacco flow, prolonged deviation of the knife from a mean position results in a correction of the mean quantity of tobacco in the stream. The knife 16 is positioned by a cam 36 controlled by a system described in Specifications 887,267 and 887,271, and the cigarette rod is monitored by a radiation source and detector. The cam 36 is coupled to the slider of a potentiometer 50, the output from which controls, through a servosystem 56 . . . 60, a variable feed mechanism 10. The potentiometer 50 may form a bridge circuit with a second, hand set, potentiometer 70 (Fig. 2, not shown), the output of the bridge forming the control signal. The hand set potentiometer is used to compensate for individual machine and tobacco characteristics. Specifications 853,139, 887,268 and U.S.A. Specification 2,895,888 also are referred to.
Patent GB-1280784-A (GB)
Title: Improvements relating to image reproduction systems
IPC: H04N3/12
Filed: 1971-04-19
Abstract: 1280784 Detector circuit POLAROID CORP 19 April 1971 [22 Jan 1970] 20089/71 Heading G1A [Also in Division H4] A photo-resistor 71 is biased by means of a plurality of diodes 89 so that the output voltage developed across the diodes is proportional to the logarithm of the brightness of the area viewed by the photo-resistor. Two such circuits are shown connected to a pair of transistors 75, 76 which develop a voltage across resistor 91 proportional to the logarithm of the brightness ratio of the areas viewed. The circuit forms part of a television image reproducing system (see Division H4) in which the cells (photo-resistors) of an array are associated in a sequence of pairs to produce brightness ratios which are used to form a sequential product signal proportional to the "lightness" as opposed to the brightness of the areas. This product signal is utilized to control the brightnesses of lamps 111 arranged in an array corresponding to that of the cells to reproduce the image.
Patent GB-427622-A (GB)
Title: New decorated material produced with the aid of or from cellulose or of or from cellulose derivatives or compounds and a process for making it
IPC: B44F1/14
Filed: 1933-07-17
Abstract: A material of pearly, silky, metallic, nacreous, or iridescent appearance is obtained by transforming a solution of cellulose or a cellulose derivative into a lather, applying it to a pliable or rigid article by coating, printing or impregnating and then solidifying by precipitation or coagulation with or without subsequent desiccation or by desiccation alone, without materially destroying the structure imparted to the material in making the lather.  The lather may be used for the production of films, or for coating, or impregnating textiles.  The structure of the lather is preserved by preventing its surface from coming into contact with rollers or other appliances that exert pressure on the surface of the lather and the devices for shaping it, applying it to a rigid or pliable support, or supporting it during coagulation or drying should not exert any pressure on or otherwise disturb it.  Solutions which may be converted into lather are those of cellulose in cuprammonia, zinc chloride, caustic alkali with guanidine, urea, or thiourea, or thiocyanate solution, or a similar solution of a conversion product of cellulose, or an alkyl ether of cellulose, or a cellulose ester, cellulose thiourethane, cellulose xanthate, or other cellulose derivative containing a CSS-group.  Cellulose ethers which are soluble in caustic alkali, but insoluble in water, and cellulose ethers which dissolve or swell in cold water are particularly suitable.  The solution of cellulose or cellulose derivative may be transformed into a lather by violet agitation or beating or by blowing into or through the solution a very violent current of air or other gas.  Saponins, proteins, peptones, or albumoses, or similar substances may be added to facilitate the formation of lather.  If desired, fish scale essence, mica, bronze, mercurous chloride, bismuth oxychloride, antimony oxychloride, or similar substance may be incorporated in the lather to enhance the decorative effect.  Dyes, or pigments may also be added. p  Specifications 335,906, 335,993, 335,994, [all in Class 2 (ii)], 341,843, 341,930, 357,121, 357,154, 357,167, 357,526, 357,527, 357,595, 368,288, 385,979, 390,517, 390,518 and 390,519 are referred to.  The Provisional Specification refers also to the production of lathers from other carbohydrates such as starch or esters or ethers of starch, and to the production of artificial threads, plastics, adhesives, cements, thickening or pigment fixing agents in textile printing, floor coverings, artificial leather, coatings on wood, glass, ceramics, plastics, textiles, paper and leather.