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Publication numberUS261234 A
Publication typeGrant
Publication dateJul 18, 1882
Filing dateApr 10, 1882
Publication numberUS 261234 A, US 261234A, US-A-261234, US261234 A, US261234A
InventorsJohn Jameson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 261234 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

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DEVICE FOR CLEANING ELECTRIC LAMP GLCBES. No. 261,234. Patented July 18, 1882.



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No. 261,234. Patented July 18,1882.

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Patented July 18, 1882.


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SPECIFICATION forming part of Letters Patent No. 261,234, dated July 18, 1882, Application filedApril 10, 1882. (No model.) Patented in England October 12, 1881, No. 4,439.

To all whom it may concern:

Be it known that I, JOHN JAMESON, a subject of the Queen of Great Britain, residing at Newcastle-upon-Tyne, England, have im'ented a new and useful Device for Cleaning Electric- Lamp Globes, (for which I have obtained a patent in Great Britain, No. 4,439, dated the 12th October, 1881, sealed 17th January, 1882,) of which the following is a specification.

My invention consists in the application of electricity or magnetism whereby to obtain transmission of power to the inside of vacuous electric lamps for the purpose of cleaning the same.

My invention may be operated in various ways, some of which are illusta-ted in the drawings hereto annexed.

Figure 1, Sheet 1, represents in elevation and section a very simple form of apparatus for the purpose, and consists of A, an iron button or a small packet of iron filings wrapped in a pad of chamois leather or similar material inside the vacuous lamp, with B, a magnet-or, as shown in the drawings, an electromagnetoutside. If the magnetism of the magnet be sufficient, by the movement of the magnet on the lamp or the lamp relatively to the magnet, the button, by its attraction, may be caused to move over such part of the inside of the lamp as may be desired, and the lamp may be so cleaned. The button may be formed into a brush or set into arim of wood, so as to prevent its rolling on its edge, and so pointed or sharpened as to act as a scraper.

Fig. 2, Sheet 2, represents another form, in which more than one button or iron armature A may be employed and more than one magnet B. The armatures are shown as rollers, so as to give facility of movement where the attraction is strongest, and are set in a ring of brass, to which is attached one or more pads or brushes or scrapers, O, as shown.

Fig. 3, Sheet 3, represents another form, in which, by means of a series of coils of wire, B, as shown, placed outside the lamp,and the passage of a current or currents of electricity through the same, an iron ring, A, or coil of iron wire within the lamp becomes magnetic, and, if it he not in the position in reference to the external coil which the passage of the electricity tends to give it, there will be an effort produced to assume that position. (It may be prevented from occupying this neutral position, apart from the passage of electricity through the external coil,by means of springs, so as that the passage-of electricity, if adequate, will produce movement, this movement being made to operate the pads, brushes, or scrapers.) The external coils may be fixed relatively to the lamp, and by a commutator 6o arrangement electricity may beimparted to the coils in succession, so as to produce a long stroke of the ring without undue length of ring and coil. To this ring the pads, brushes,

or scrapers are attached, or, as in Fig. 4, Sheet 3, one coil only may be employed outside the lamp, and the lamp may be slipped in this coil up and down, so as to obtain the effect due to more or less perfectly fixing the ring with its pads, brushes, or scrapers while the lamp is moved.

I have shown in the drawings arrangements for producing rectilinear motion of the ring lengthwise of the lamp. The motion may, however, be rotary by slight modification, as will be well understood. If itbe longitudinal, as shown, however, I provide for a slow rotation by means of a circular rack arrangement or equivalent device, (shown in Fig. 3,) with a pawl or pair of pawls, which, on completion of each stroke, rotates the ring, with its attached cleaners, to the extent of one tooth. The arrangement may be modified by the introduction within the lamp of any form of electrodynamic machine, and there are various other forms for the transmission of electricity or magnetism so as to produce motion, and thus to operate a cleaning device. I do not, however, claim any particular form of mere mechanism but 0 What I claim as my invention is- In a vacuous electric lamp, a cleaning pad, brush, or scraper within its glass orlight-transmitting portion, serving as or actuated by an armature, and adapted to be moved over theii1- 9 5 terior surface of the said glass, in combination with a magnetic or electromagnetic apparatus serving to operate the cleaning device without access to the interior of the lamp.


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US2514116 *May 14, 1946Jul 4, 1950Atomic Energy CommissionInduction reamer
US4361370 *Sep 30, 1980Nov 30, 1982Rca CorporationApparatus and method for cleaning shadow masks in color picture tubes
US6675877Aug 29, 2002Jan 13, 2004Conagra Grocery Products CompanySeal-less magnetically driven scraped-surface heat exchanger
US6789938Aug 29, 2002Sep 14, 2004Conagra Grocery Products CompanyDevice and method for removing build-up on measurement gauges
US6960018Jan 16, 2004Nov 1, 2005Conagra Grocery Products CompanyMethod for removing build-up on measurement gauges
US7569241Nov 19, 2003Aug 4, 2009Conagra Foods Rdm, Inc.Magnetic alignment system for scraped-surface heat exchanger and method
US20050103206 *Nov 19, 2003May 19, 2005Constantine SanduMagnetic alignment system for scraped-surface heat exchanger and method
Cooperative ClassificationH01J9/50