US1682416A - Marking cutter for tree lamps - Google Patents

Description

Aug. 28, 192 1,682,416

L. L. RAYMCND MARKING CUTTER FOR TREE LAMPS Patented Aug. 28, 1928.

UNITED STATES LAMBERT L. RAYMOND, F MINNEAPOLZIS, MINNESOTA, ASSIGNOR TO BRODERICK- SON-RAYMOND COMPANY, OF MINNEAPOLIS, MINNESOTA. A CORPORATION OF MINNESOTA.

MARKING CUTTER- FOB- TREE LAMPS.

Application filed November 22, 1926. Serial No. 150,123.

This'invention relates to a device for marl:- ing electric light bulbs. and while the inven tion is applicable to la'mp bulbs used for various purposes, it particularly is designed for l bulbs used in decorative work such as Christmas tree decoration. One form ofChristinas tree decoration or lighting which has been developed by applicant is to have reflectors with radially spaced or circumterentially l0 spaced zones thereon. The bulbs used in connection with such reflectors have designs thereon which are arranged in proper relation to the zones on the reflectors. Very beautiful decorative effects are thus produced.

These designs or markings on the lamp bulbs are often made by a device which cuts or scrapes away the coating. usually used on the bulb. It is desirable, therefore, to have a simple and easily operated device by means of which designs may readily be made on the lamp bulbs.

It is an object of this invention. therefore, to provide a very simple and cfiicient device for producing the designs or marks on the lamp bulbs.

It is a further object of the invention to provide such a device having a plurality of spaced teeth adapted to surround the bulb whereby the bulb and device may relatively be moved to produce the design.

It is another object of the invention to provide such, a device made of plate material having an opening therethrouszh and having a plurality of 'circumferentially spaced teeth 5 projecting; inwardly from the edge of said opening.

It is still another object of the invention to provide such a device comprising: a tool made of plate material havinc: a substantially circular opening therethrough. the edge of said opening having outwardly extending: circumferentially. spaced recesses formed therein and inwardly extending teeth circumferent-ially spaced and disposed respcctively between said recesses.

These and other objects and advantages of i the invent-ion'will be fully set forth in the following description made in connection with the accompanying drawings. in which like reference ch aracters refer to similar parts throughout the several views and in which Fig. 1 is a viewin horizontal cross section. showing a lamp bulb with markings thereon Fig. 3.

in operative position relative to the reflectori Fig. 2 is a plan view of one form of the device;

Fig. 3 is a central device shown in Fig. 2

Fig. 4 is a plan view of'a modified form of the device; p i

Fig. 5 is a central vertical section of the device shown in 4';

Fig. 6 is a the device;

Fig- 7 is a central vertical section on line 7-7ofFig.6; Fig. 8 is also a plan view of a modified form; Y

Fig. 9 is a plan view of a still further modified form; v f Fig. 10 is a plan view ofanother modificaion: Fig. 11 is partly an edge view and partly a central vertical sectionof the device shown in Fig. 10.

plan'view of another form of Fig. 12 is a plan view of another modified form ofthe device; 1

Fig. 13 is a vertical section taken on line 13- 13of Fig. 12. i

Fig. 14 is a planview of another modification;

Fig. 15 is anedge view in Fig. 14;

Fig. 16 is a view showing the device in vertical cross section illustrating the opera tion thereof on a lamp bulb; and Fig. 17 is partial perspectiveview of another modified form of the'device Referring to thedrawings. Fig, 2 shows a plan view of one form of the device comprising a tool 15 of circular form and made of the device shown from plate material. This tool has a central opening therethrough substantially circular,

in outline and said opening has formed on 1ts edge and DI'016CtlI1g therefrom, a'plurality of teeth 15. These teeth are preferably,

as shown in Fig. 3, bent out of the plane of the plate or tool. adjacent teeth being bent in opposite directions. r 7

In Figs l and 5 another form of a tool 17 is shown, substantially the same that shown in Figs. 2 and 3, except that the teeth 17 thereon are not oppositely bent as shown in In operatlon the lampbulb 16, which may be of the shape shown in Figs. 1 and 16, is

vertical section of the I placed in the opening in the tool 17 imtil the sharp ends of the teeth 17 engage the bulb. The bulb is thus centered in the tool and may be held by the fingers of one hand while the tool is held by theother. Relative motion such as rotation is then given to the tool and bulb and the teeth 17 will cut the coating present on the bulb away so that aclear strip or zone 1G will be made on the bulb 16. The tool 17 may also be tilted or moved otherwise relatively to the bulb 16 to make other marks or designs on the bulb. It will be obvious that the operation of the tool 15 will be the same as already described for tool 17 In Figs. 6 and 7 another form of the device 18 is shown, also made from a date which is substantially circular in shape,liutwhich has the lobes 18 formed on its periphery which it may be more easily held and turned. The member 18 also has an opening therethrough substantially centrally thereof, and from the inner edge of this opening a plurality of cireumferentially spaced recess 18 extend outwardly. A plurality of teeth 18 are also formed on the edge of the opening in member 18 and project inwardly toward said opening. said teeth also being circumferentially spaced and disposed respectively between the recesses 18!. As shown in Fig. 6, there are two teeth 18 between each recess 18. In Fig. 8, another device 19 is shown, very similar to the device shown in Fig. 6 and having the lobes 19 on its periphery. which device also has the central opening therein. he member 19 also has formed in the edge of said opening the cireumferentlally spaced recesses 19 between which are the groups of teeth 19 As shown in Fig. 8, there are three teeth between each of the recesses 19". The teeth 18 in the member 18 or the teeth 19' in the member 19, may be disposed in one plane, or the same may be offset as shown in Fig. 3.

The operation of the devices shown in Figs. 6, 7 and 8 is similar to that alreadydescribed in connection with devices 15 and 17 It may be noted that by having the teeth circumferentially spaced about the edge oi? the opening, the lamp bulb is engaged on all sides and is thus evenly supported With this structure there is little danger of breaking the lamps. It is particularly necessary to thus support the bulb as the small Christmas tree lights are made of ver i thin glass and are apt to be broken by little pressure.

In Fig. 9 another form of the device is shown, comprising a member 20 also formed from plate material and being of substantially circular form with the scallops 20* on its periphery. The member 20 has an opening therethrough and the recesses '20 are formed in the edge of this opening extending outwardly therein. Said recesses 201 are circumferential-1y spaced at one side of the opening and a plurality of teeth 20 are formed adjacent each other at the opposite side of the opening, said teeth projecting inwardly. The edge between the recesses 20" is smooth and circular in form and substantially concentric with the inner edges of the teeth 20.

In the operation of the device shown in Fig. 9, the lamp will be inserted as shown in Fig. 16. One side of the lamp will be supported on the edge between the recesses 20" and also on the portions oi the edge at the sides of the recesses 20" toward the teeth 20 The scallops 20" a ll" ord a gr pping means for the fingers and as the lamp bulb and tool are relatively rotated the bulb will be supported upon three sides by the smooth edge of the opening and will be engaged on the other side by the teeth 20" which will scratch or.

cut the desired marks thereon.

In Fig. 10 another member 21 is shown also of circular form and made from plate mate rial. The member 21 has a central opening therein shown as substantially circular in form and a plurality of small cutters 22 are disposed about this opening. The cutters 22 are shown as in the form of small cutting wheels having sharpened or beveled edges 22. The cutting tools 22 are each journalcd on a small pivot 23 cxtcndii'ig axiallv thcrethrough and riveted to douunvam ly bent lugs 21" so that the axis of said pivot and the plane of said cutters are inclined to the plane of the plate 21. It will be noted that the cutters 22 extend into the opening in the plate 21.

In operation the bulb 16 will be placed in the opening in member 21 and will be engaged by the cutters Upon relative rotation of the bulb and member 21, the cutters 22 will cut the mark in the bulb. Owing, to the inclination of the tools 22 there will be quite a portion of the surface thereof which will contact the bulb operated upon.

In Figs. 12 and 13 a tool 27 is shown, comprising a circular plate having a central circular opening therein and having circumfercntially spaced recesses 27 extending outwardly from the edge thereof. The edges of the recesses are turned at right angles to the plate 27 to form cars 27" and a small circular disk tool or cutter 28 is pivoted on a pivot 29 between each pair of the cars 27".

In operation the lamp bulb will be placed as already described in the opening in the tool 27 and upon relative movement of said tool and lamp bulb and the mark or design will be cut or scraped thereon by the tools 28.

In Figs. 14C and 15, a somewhat different form of the device is shown, com rising a member 26 made from plate materia ,and circular in form. The member 26 has a central circularopening theretln'ough. and a plurality of circinnferentially spaced teeth 26 project inwardly from the edge of said opening. The teeth 26 are inclined somewhat to the radius extending from the center of the opening to the center of the base of each tooth, said teeth being shown as having short straight cutting edgesinclined slightly to the tangent of a circle away the coating of the lamp and formthe marking or design thereon.

In Fig. 17 another form of the device is shown, comprising a cylindrical member 24 which may be tapered toward one end and which has the circumferentially spaced teeth 24 at its end bent inwardly so as to extend across the end of the member 24.

In operation the bulb 16 will be placedin the end of the member 24 and upon relative rotation of said member and bulb the desired designs may be cut in the bulb.

In Fig. 1 the bulb 16is shown in its operative relation to the reflector 25. The inner side of the reflector will have a highly polished and high reflecting surface. \Vhen the bulb 16 is illuminated, the light from the zone 16 will shine outwardly and form an illuminated circular zone on the reflector. It the forward portion of the bulb 16 is colored, the zone 16 may be clear and with a colored reflector a plurality of color effects are thus obtained.

From the above description it is seen that applicant. has provided a very simple, inexpensive and easily operated device for producing the markings on the lamp bulbs. The device has been amply demonstrated in actual practice andfound to be very successful and efficient.

It will,of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention, which, generally stated, consists in a device capable of carrying out the objects above set forth, in the novel arts and combinations of arts disclosed and defined in the appended c aims.

What is claimed is i 1. A device for marking colored electric lamp bulbs comprising a tool having an opening therein, and a plurality of spaced cutting members disposed about the inner edge of said opening and projecting thereinto, where- 'by said lamp bulb may be placed in said opening and said tool and bulb relatively moved to mark said bulb.

2. A device for marking electric lamp bulbs comprising. a tool formed as a disk having a substantially circular opening therethrough, a plurality of circumferentially spaced teeth projecting into said opening from the edge thereof, adjacent ones of said teeth being offset in opposite directions from the planeof said plate whereby a lamp bulb may be inserted in said opening and marked by relative movement of the same andsaid tool.

3. A device for marking electric lamp bulbs comprising a tool made of plate material having anopening therethrough, the edge of saidopening having a plurality of circumferentially spaced recesses formed therein, a plurality of circumferentially spaced teeth projecting inwardly from said edge and disposed respectively between said recesses.

4. A device for marking electric lamp bulbs comprisinga tool formed as a disk having a substantially circular opening therethrough, a plurality of circumferentially spaced cutting means projecting into said opening from the edge thereof, whereby said, lamp bulb may be placed in said opening and said tool and bulb relatively moved to mark said bulb; V

5. A device for marking lamp bulbs having in combination, a plurality of circumferentially spaced cutting members having cutting edges disposed substantially in the circumference of a circle and means to which said cutters are connected and by which they are supported, thecutters being positioned to receive a lamp bulb therebetween and to be turned relatively thereto.

In testimony whereof I aflix my signature.

LAMBERT, L. RAYMOND.

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