US1773400A

US1773400A - Clare k

Info

Publication number: US1773400A
Authority: US
Publication date: 1930-08-19
Anticipated expiration: 1947-08-19

Description

Aug. 19, 1930.- l c. K. LIGHT 1,773,400

PROCESS OF MAKING MATCHES Filed Jan. 10, 1950 COMPOSITION HEFlTER-f 4 HERD CUTTER Patented Aug. 19, 1930 umreo s if. S

PATENT oFFicE CLARE K. LIGHT, OF OSWEGO, NEW YORK,ASSIGNOR TO THE DIAMOND MATCH COM- IPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS 1 p rnoonss or MAKING, ATcI-I s Application filed January 10, 1930. Serial No. 413,822.

This invention relates to a process of making matches having splints of permeable combustible material; its object being to provide for the economical and efficient treatment of 5 the match splints with material which is effective to limit the flame to a relatively small portion of the splint when a match is ignited, and also with material Which is effective to prevent the glowing of the burnt or charred part of the splint when the flame is extin- I guished.

The invention is especially designed for use in connection with a match making machine wherein the splints are inserted endwise, row

by row, in an endless carrier and thereby rigidly held in spaced parallel relation and transported through the match making path, including wax (as paraffin) and match composition applying mechanisms.

In carrying out the invention in the preferred way the match splints, projecting from and supported in spaced parallel relation by the carrier, are treated with a material which permits the burning of the splints when they are ignited yet prevents their glowing when the flame is extinguished. This anti-glow material preferably consists of an ammonium phosphate solution withwhich the splints'are impregnated, or of powdered ammonium phosphate with which the exposed surfaces of the splints are dusted or coated. The free end portions of the impregnated splints or the coated splints are dipped to a suitable depth into molten wax, as paraffin, and they arethen exposed to the atmosphere for a brief interval of time to allow the wax to set. This done, the splints are sprayed with a solution of material, such as ammonium phosphate which impregnates and renders practically ,fire-proof'the portions of the splints above the Waxed or paraffined portions, yet does not accumulate upon or impair the efficient burning quality of such paraflined portions.

- The free extremities of the parafiined portions of the splints are tipped with any usual or approved ignitible composition or compositions to form the match heads, whereupon the matches are conveyed through a suitable drying space, whence they are discharged 0 from the carrier and packed.-

Inthe drawing; which is a diagram of parts of a'match. making machine designed tocarry out my hereinbefore described process, 1 designates a portion of an endless carrier in which match splints, 2, are endwise inserted, row by row, and thereby rigidly held in spaced parallel relation. The type of machine illustrated embodies a cutter head3 having instrumentalities whereby succeeding rowsof splints. are cut from a blockof wood and forcibly inserted in perforations in the carrier.

4 designates a. sprayer located adjacent the cutter headand adapted toyproj ect upon and longitudinally of the splints borne by the carrier a fine spray or mistof material effectlve to prevent theglowing of the splint material when a match has been ignited and the flame extinguished. This material is preferably a concentrated, solution of phosphate ammonium, about 8.5 .Baum, which is quick- I ly absorbed by the ,splintsfbut, if desired, the materla'l may comprise pulverized phosphate of ammonium which in a dry stateadheres to and formsa light dust or coating on the exposed surfaces ofthe splints.

'5designates arbath of molten paraflin, or the like, in which the lower ends of the depending splints,afterfthey leave the sprayer, are immersed to a depth corresponding with the desired inflammable larea-ofithe splints. If desired a suitable heater may be interposed betweenthe sprayer and the paraffin bath, in orderto ensure the drying ofthe wet impregnated splints before they are dipped in the bath.

6 designatesa second sprayer arranged adj acent the path ofthe splints, and sufficiently distant from the paraflin bath to allow the paraffin on the splints to set or harden before thesplints reach the secondispray'er. This second sprayer functions to project upon and longitudinally of the'splints adjacent thereto a fine spray or mist of a solution effective to impregnate theexposed unparaffinedportion ofeach individual splint'andrender it sufliciently fire-resistant to limit the flame to the parafiined portion of the splint when the matchis ignited. The impregnating material is preferably a concentrated solution of phosphate ammonium, about 21.5 Baum, the velocity of which as it is projected in a fine spray along the water repellant paratfined portion of the splint prevents its adherence to or accumulation on the paraflined surface. Consequently the efficient burning quality of theparafiined portions of the splints is unimpaired.

7 designates a composition containing vat equipped with a transfer roll 8 by means of which match head composition is applied to the lower parafined ends of the depending splints after the splints leave the second sprayer.

I claim- 1. A process of making matches, comprising treating a splint of permeable combustible material with an anti-glowing material, treating a predetermined inflammable area of the splint with wax, projecting a fine spray or mist of a solution of fire-resistant material upon and lengthwise of the waxed and un- Waxed portions of the splint in such manner that the solution passes to and impregnates the unwaxed portion of the splint Without its accumulatingon or impairing the burning quality of the waxed portion, and applying match head composition to the free end of the waxed portion.

2. In a process of making matches whereof the splints have waxed and unwaxed portions, the step ofimpregnating the unWaxed portions of the splints with fire-resistant ma 'terial, comprising projecting a fine spray or mist of a solution of such material upon and lengthwise of the waxed and unwaxed por-' tions of the individual splints in such manner that the solution passes to and impregnates the unwaxed portion of each splint without its accumulating on or impairing the burning quality of the waxed portion of the splint.

3. A process of making matches, comprising impregnating spaced apart rows of splints of combustible permeable material with a solution of phosphate ammonium, about 3.5 Baum, treating a predetermined inflammable area of each individual splint with wax, projecting a fine spray or mist of a solution of phosphate ammonium about 21.5 Baum, upon and lengthwise of the waxed portion of the splint whereby such spray passes to and impregnates the unwaxed portion ofthe splint without itsaccumulating on or impairing the burning quality of the Waxed portion, and applying match head composition to the free end of the Waxed portion.

4. A processof treating rows of spaced apart match splints which are each held at one end in andproject from a suitable carrier, comprising treating the exposed surfaces of the respective splints with ananti-glowing material, treating the free end portions of the said splints with wax, projecting a fine spray or mist of a solution of fire-resistant material upon and lengthwise of the waxed and unwaxed portions of the respective splints without its accumulating on or impairing the burning quality of the waxed portions, and applying match head composition to the free ends of the said waxed portions.

Signed at Oswego, in the county of ()swego and State of New York, this 7th day of January, A. D. 1930.

CLARE K. LIGHT.