US1614048A

US1614048A - Fastening device for caps

Info

Publication number: US1614048A
Application number: US750165A
Authority: US
Inventors: Stewart William Evertte
Original assignee: Eisele and Co
Current assignee: Eisele and Co
Priority date: 1924-11-15
Filing date: 1924-11-15
Publication date: 1927-01-11
Anticipated expiration: 1944-01-11

Description

Jan. 11, 1927. v 1,614,048 w. E. STEWART r FASTENING DEVICE FOR CAPS Filed Nov. 15, 1 2 sheets-sheen WITNESSES v v INVENTOR ATTORNEYS Jan. 11 1927, 1,614,048

w. E. STEWART FASTENING DEVICE FOR CAPS Filed Npv. 15, 1924 2 Sheets-Sheet 2 WITNESSES INVENTOR STEM/4R7,

. BY r (7/ (11 49,

ATTORNEYS Patented Jan, 11, 1927.

UNITED STATES PATENT OFFICE.

WILLIAM EVERTTE STEW'ART, OF NASHVILLE. TENNESSEE, ASSIGNOR TO EISELE 8c COMPANY, OF NASHVILLE, TENNESSEE, CGRPORA'IION OF DELAWARE.

FASTENING DEVICE FOR CAPS.

Application filed November 15. 1924.

This invention relates in general to releasable fastening means for securing a cap or the like to a case or similar structure and is especially designed for We in mounting and securing the cap of a clinical thermometer to its case so as to releasably secure or hold the thermometer in the case. The invention is also adapted for embodiment in other similar structures such as fountain pen cases, pencil cases, or the like.

The object of the invention is the provision of a device of this character which eliminates the use of threaded parts thereby avoiding the necessity for tedious manipulation of the cap and case in order to interengage the threaded parts.

A further object is the provision of a releasable fastening device of this character which when embodied in, aclinical thermometer case, coacts with the cap of the case to secure the cap in position while permitting the cap and the thermometer to aline themselves in the case, thereby avoiding scratching, scarring or breaking the thermometer. I

Other objects and advantages reside in certain novel features of the construction, arrangement and combination of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming a part of this specification, and in which:

Figure 1 is a fragmentary perspective view of a clinical thermometer case embodying the present invention and showing the cap applied and r'eleasably' held to the case,

Figure 2 is a view similar to Figure 1, but showing the cap and thermometer partially withdrawn from the case,

Figure 3 is a view partly in elevation and partly in section of the arrangement shown in Figure 1, V

Figure 4 is a view in section on the line 44 of Figurel,

Figure 5 is a detail perspective view of the bushing of Figure 1,

Figure 6 is a fragmentary perspective view showing a slightly diife'rent form of the invention,

Figure 7 1s a vlew partly in section and partly n elevation of the form shown 1n Figure 6,

Serial No. 750,165.

Figure 8 is a view in section on the line 8-8 of Figure 7,

Figure 9 is a group view in perspective of the bushing and spring employed inthe form of the invention illustrated in Figures 6, 7 and 8,

Figure 10 is a perspective view showing another form of the invention, the cap and thermometer being shown positioned within and secured to the cases,

Figure 11 is a view similar to F igure10 showing the thermometer and cap partially withdrawn,

Figure 12 is a view partly in section and partly in elevationof the form shown in Figure 10,

Figure 13 is a view in horizontal section on the line 13-13 of Figure 12,

Figure 14 is a perspective view showing another embodiment of the invention,

Figure 15 is a View similar to Figure 1 1, but showing the caps and thermometers partially withdrawn,

Figure 16 is a view partly in section and partly in elevation of the arrangement shown in Figure 14,

Figure 17 is a view in horizontal section on the line 17-17 of Figure 16, and

Figure 18 is a view of another embodiment of the invention.

Referring to the drawings, and more especially to Figures 1 and 5, the numeral 1 designates a case for a clinical thermometer designated at 2 and carried by a cap 3. Re leasab'le interengaging and holding means is provided for securing the cap 3 to the case 1 and for properly positioning the thermometer 2 in the case, and this meanscomprises a bushing 4 fitted and secured in the upper open end of the case 1. The bushing 4 is provided with a number of longitudinal slots 5 extending from the outer end of' the bushing to points adjacent its center and these slots 5 which occur at spaced angular intervals around the bushing provide flexible sections on the bushing. The flexible sections of the bushing have inwardly deflected marginal edges or portions 6 which provide arcuate spring members designed to engage and fit in a groove 7 provided in a cylindrical member 8 carried by the cap 3, so that the cap will be releasably secured to the bushing and consequently to the ease. The

Fit)

for vard end of the cylindrical member 8 is rounded oil or provided with a camming portion 9 designed to engage the arcuate spring members 6 to cause them to snap into the groove 7. The bushing 1 is of cylindrical form, so that the cylindrical member 8 when titted therein provides a proper mounting for the cap 3 and thermometer 2. This cylindrical member 8 is a suliiciently loose tit in the bushing 4: to permit the thermom eter to properly aline itself in the case 1 thereby preventing breaking of the thermomcter.

The form of the invention illustrated in Figures 6 to 9 inclusive is identical with that just described except that the bushing 10 which COH'GSPOINlS to the bushing it is of somewhat ditlerent structure. The bushing 11') is of cylindrical term but is not slotted to provide yieldable sections the bushing 10 on the contrary being substantially rigid, and being suitably fixed in the case 1. Adjacent its upper end the bushing 10 is formed with an annular groove 11 in its outer periphery, and inv this groove an arcuate spring member 12 is received. One end oi the spring member is confined b tween the bushing 10 and the case 1 and is held in position in this way. The. other end of the spring member 12 is inturned as at 13 and is eX- tended through an opening 14 provided in the bushing. Clearance 15 is provided for the portion of the spring member adjacent the inturned end 13 so that the spring member may partake of the necessary flexion. With this form of the invention, the inturned end of the spring member 13 is engageable with the groove of the cylindrical member 8 and this inturned end is influenced into the groove 7 by the action of the camming portion 9 of the cylindrical member.

111 the form of the invention shown in Figures 10 to 13 inclusive, the thermoniit-iter cap and cylindrical member hereinbefore described are employed as above, but the case 1 which is also employed. has a dil'l erent type of bushing. As shown to advantage in Figure 12, the bushing employed in this em- Jodiment of the invention includes a cylindrical body portion 16 fitted and secured in the upper end of the case and having an outwardly directed flange 1'? overlapping the upper end of the case. The flange 17 is provided 'ith an internal groove 18 in which an arcuate spring member 20 is positioned. One end of the spring member 20 is soldered, welded or otherwise suitably -fastened to the walls of the groove 18 and the spring member adjacent its other end curves out into the opening of the body portion 16, so as to be positioned to snap into the groove 7 of the cylindrical member 8 under the influence of the camming portion 9.

In the embodiment of the invention illustrated in Figures 14 to 17 inclusive, a pair of cases designated at are provided and are formed at their lower ends with reduced extensions 26. The reduced extension of one case is fitted and secured in an opening-provided there't'or in the carrier 27, whereas the reduced extension of the other case is releasably fitted in an opening provided therefor in the same carrier.

Flanged bushings 28 are fitted and r'rictionally secured in the upper open ends of the cases 25, and these flanged bushings have their adjacent portions united as at 29. 'lhermometers 2 are introduced into the cases 25 through the bushings and these thermometers have associated therewith the caps 3 and cylindrical members 8 hereinbetore described. rrircuate spring members 30 are provided on the bushings, the arcuate spring members being disposed exteriorly of the bushings and having inturned end portions 31 extending through openings in the burla ings and projecting into the grooves T oi the cylindrical members c. It desired, these arcuate lHCEi'il'Mll'S 30 may be coi'istituted of a single piece of spring metal having its intermediate portion 32 welded, soldered or otherwise suitably secured to the bushings 17.

In the form of the invention shown in Figure 18 the numeral 35 designates the barrel of a fountain pen and the numeral 36 the cap thereof. A bushing 3? is fitted and secured in the cap 36 and has a groove 38 receiving a curved or arcuate spring 89. The spring 39 is designed to snap into a groove 1-0 provided in a cylindrical member 4-1 titted onthe barrel 35. vThe cylindrical member ll has a camming portion i2 for influencing the spring 39 into the groove 10. It is to be understood that one end of the spring 39 is secured to the wall of the groove 38, and that the spring adjacent its other end curves out of ti groove and into the bore or opening of the bushing.

I clainr:

1. In a device of the character described, a case, a cap for the case, and releasable interengaging holding means "for securing the cap to the case, said releasable interen 'aging holding means including a part carried by the. case and a part carried by the cape one part slidably fitting within the other, one part having a groove and the other part having a spring member positively connected thereto and designed to engage the walls of the groove to hold the parts together and the cap on the case;

2. In a device of the character described, a case, a cap for the case, and. releasable inter-engaging holding means for securing the cap to the case, said releasable interengaging holding means including a part carried by the case and a part carried by the cap, one part fitting within the other, one part having a groove and the other part having a spring member designed to engage the walls of the groove to hold the parts together and the cap on the case, the part having the groove also having a camming portion for influencing the spring member into the groove.

In a device of the character described, a case, a cap for the case, an instrument carried by the cap, a hollow cylindrical bushing fitted in and fixedly secured to one end of the case, a cylindrical member secured to the up and designed to slidably fit in the bushing and to permit the instrument toaline itself and the cap in and on the case, said cylindrical member having an annular groove in its periphery, and an arcuate spring member carried by the bushing and engageable with the groove.

4. In a device of the character described, a case, a cap for the case, an instrument carried by the cap, a hollow cylindrical bushing fitted in and secured to one end of the case, acylindrical member secured to the cap and designed to fit in the bushing and to permit the instrument to aline itself and the cap in and on the case, said cylindrical member having an annular groove in its periphery, and an arcuate spring member carried by the bushing and'engageable with the groove, the cylindrical member having a camming portion forwardly of the groove for influencing the spring member into the groove when the cylindrical member is introduced into the bushing.

5. In a device of the character described,

a case, a cap for the case, an instrument carried by the cap, a hollow cylindrical bushing fitted in and secured to one end of the case, a cylindrical member secured to the cap and designed to fit in the bushing and to permit the instrument to aline itself and the cap in and On the case, said cylindrical member having an annular groove in its periphery, and an arcuate spring member carried by a groove in the inner side of the bushing and having aportion secured to the bushing and also having another portion free and engageable with the groove.

6. In a device of the character described, a casing, acap for the casing. an instrument carried by the cap, a bushing fitting in and-secured to one end of the casing, a member secured to the cap and designed to fit into the bushing, groove in its periphery, and an arcuate spring member having a circumferential extent less than a circle and having one end positively secured to the bushing and also having its other end free and engageable with the groove of the member.

7. In a device of the character described, a casing, a cap for the casing, an instrument carried by the cap, a curved spring member having one portion positively connected with the casing and having another portion free and a member secured on the cap and having a groove adapted to be engaged by said free portion of spring member.

VILLIAM EVERTTE STElVAtRT.

said member having a v