|Publication number||US1039936 A|
|Publication date||Oct 1, 1912|
|Filing date||Jun 26, 1912|
|Priority date||Jun 26, 1912|
|Publication number||US 1039936 A, US 1039936A, US-A-1039936, US1039936 A, US1039936A|
|Inventors||Robert W Hardie|
|Original Assignee||Robert W Hardie|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
R. W. HARDE.
SGAR? PIN GUARD.
APPLIOATIQN FILED JUNE 2e, 191s. A
INVENTOR Patented Got. 1, 1912.
ROBERT W. BARBIE, OF YGNKERS, NEW YORK.
Specification of Letters Patent.
Application filed June 26, 1912. Serial No. 706,026.
To @ZZ whom it may concern:
Be it known that I, ROBERT W. I-IARDin, a citizen of the United States, and resident of the city of Yonkers, in .the county of YWestchester and` State of New York, have invented certain new and useful Improve- .ments in 4Scarf-Pin Guards, of which the this invent-ion is designed to improve the .construction shown in saidv several Letters Patent, in the manner hereinafter described, and illustrated in the accoinpanyingdrawings, wherein I have shown my invention in l the form most preferred by me, and wherein similar characters of refei'ence indica-te corresponding parts throughout the several views.
In the drawings Figure 1 is a vertical transverse section taken on the axial line of a scarf pin guard embodying my invention, Fig. 2 is a plan of a carrier and clamping device, consisting of small balls, mounted therein, and F ig. 3 is a vertical t-ransverse section showing a modification of my invention.
As illustrated in the drawings, 1 represents a main head, which may be provided with a tubular shell or casing 2, extending from one end ofsaid head. The head l is provided with a longitudinal bore 3 extending from the insertion end f4 of said head, through the head, onthe axial line thereof.
Adjacent to the innermost end of said head there isa hub 5 preferably having asleeve G- extending through the bore of the head 1, and the louter end of said sleeve may `be 'flanged over on to the insertion endl 4' ofthe' main head l, so as to secure said main head, sleeve, and hub together. On the opposite end of the hub 5 is aniauxiliary head 7 provided ith a conical inner v wall 8, flaring outwardly from theinner portion of said head. The hub, sleeve 6, and auxiliary head 7 are provided with a bore or aperture adapted to'rrtceive a sca-rf pin. The outer wall of the head L7 is spaced from the inner wall of the shell or easing 2, and between said head and shell there is a shell or casing 9 having an inwardly extending wall or flange 10 forming an aperture 11 to receive the hub The hub 5 serves as a ,tightly than befor connection between the main head 1 and the auxiliary head 7, and is reduced n diameter relatively to that' of the main head so as vto form an annular recess around said -hub between the main and auxiliary heads, within which recess is mounted a spring 12. The inwardly extending flange of the inner casing 9 extends into said recess between the niain head and said spring. The outer end of the casing 9 is connected with a carrier 13, preferably by means of an annular groove 14 in said carrier, forming an` annular shoulder 15 which is engaged by the flanged end of the casing 9. The carrier 13, is provided with apertures 1G within which apertures are mounted balls 17 adapted to serve as gripping devices. The apertures 1G extend from the outer wall of the carrier 13 to a cent al aperture 18, which is designed to receive. a scarf pin 19.
The parts are so constru/ d and arranged,- that the balls 17 not only oear against the inner conical wall 8 of the auxiliary head 7, butalso against a scarf pin 19 inserted in the aperture 18 of said head. The terminal 20 of the casing 2 is preferably spaced from'the outer margin 21 of the carrier 13 so as to enable the outer edge of the casing 9 to'be pressed. into the annular groove 1t formed in the carrier 13.
After a scarf pin has been inserted in the guard, the tension of the spring 12 draws the flanged end 10 of the casing 9 inward, and forces the gripping devices 17 up .into a more contracted portion of the recess of the auxiliary head 7 and inwardly against the scarf pin 19. vWhen an effort is made to pull the scarf pin 19 from a scarf, the gripping devices 17 are forced into a still more contracted portion of the recessof the auxiliary head 7, and grip the scarf pin more ratenteaoct. 1.191,2.- Y
AThe scarf pin 19 is released from the guard by drawing the carrier 13 outwardly to a slight extent against the tension of the spring 12,'thereby. bringing the gripping devices 17 into a wider portion of the cour` cal wall of the auxiliary head 7,
The foregoing construction may be ,ri ""1 fied, by dispensing with the casing 2 :how d in Fig. 1, and making the casing 9 of thc saine outer circumference as that of the radjacent portion of the head 1, as is shown in Fig. 3 ,and in some instances I prefer to use such a construction in carrying out any invention. By means of such construction, the
vIS 0 necessity of bringing the fingers between the outer margii'i 21 of Athe carrier 13 and the end of the casing 2 of the construction amm in rig, 11S dispenseawia. In Such construction the scarf pin is inserted in the guard in the same manner as in the construction shown in Fig. 1, and is released from the guard by simply drawing the casing slightly outwardly from the head 1.
In the construction shown in the drawings, the hub 5,l sleeve 6, and auxiliary head Tate constructed integra-l with each other, and the sleeve 6 isK projected through the bore of the head 1 and flanged to the insertion end of the head 1. Such .construction may, however, be modified without departing from my invention, and in some 1n` stances the sleeve 3 may be dispensed with, and the auxiliary head 7 connected with the head 1 in any other suitable manner. The recessed connection between the main and auxiliary heads may also be modified it desired. and a recess of a diiterent kind adapted to receive a spring may be used in lieu of the construction shown in the drawings and described herein.
VBy means of the construction herein shown and described, the outer casing may be made of gold, while the remaining portions of the device 'may be made of cheaper metal, thereby providing a high class pin guard at a compara-tively low cost. By means of such construction, moreover, the inclined bearing surface 4against which the gripping devices operate, being independent of the casing and removed thereof, may be made o'fvharder metal'than the casing, such as bronze or steel, thereby providing a much more durable bearing Surfed; whereas in prior devices of this character, an inclined bearing surface has been formed on or with an outer casing, and be'ing of co paratively soft material. it soon becomes cu and worn v by the steel balls constituting ,the gripping devices. thereby causing a rough surface, which interferes materially with tne proper operation of the gripping devices.
What I claim as new and desire to secure by Letters Patent is 1. A scarf pin guard comprising Aa mainhead provided with an axial bore, an auxiliary head provided with a conical inner wall and with a bore in line with the bore of the main head, a hub connection between the main and auxiliary heads smaller in diameter than that of the main -head forming Washirjt head provided with an axial bore, an auxiliary head provided with a conical inner wall and with a bore in line with the bore of the main head, a hub connection between the main and auxiliary heads smaller 'in'v diameter than that of the main head forming a recess between said heads and pro-.
vided with a bore in line with the bore of said heads, a sleeve extending from said connection through the bore of the maint: head and secured to said head, a springmounted in the recess between said heads, a carri-er arranged within said auxiliary head and provided with an axial bore and with gripping devices, and means connected with said spring and 4carrier to cause said carrier to be pressed inward by t-he tension of said spring.
43. A scarf pin guard. comprising a ma'in head provided with an axial bore and a tubular outer shell extending beyond said main head, an auxiliary head provided with a conicalinner wall and with a bore in line with the bore of the main head, a hub connection between the main and auxiliary heads smaller'in diameter than that of t-he main head forming a recess between said heads and provided with a bore in line with the bore of said heads, a spring mounted in the recess between said heads, a carrier arranged wit-hin said auxiliary head and provided with an axial bore and with gripping devices, and an inner tubular conneci tion between said spring and carrier extending between said outer shell and auxiliary head and housed within said outer shell to cause said carrier to be pressed inward by the tension of said spring.
In witness whereof I have hereunto affixed my signature in the presence of two attesting witnesses.
ROBERT W. HARDIE.
Witnesses JAMES A. BLANoiirmLn GERALDINE BLANCHFIELD.
eacfi. by addressing the "Commissioner of I'atents. onA 1., C."
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