US1632003A - Finger grip for violin bows - Google Patents

Description

June 14 1927. 1,632,003

I 'J- GAYNOR FINGER GRIP FOR vxomu BOWS Filed Sept. 1926 V INVENTOR.

ATTORNEY Patented June 14, 1927.

JOSEPH GAYNOR, OF JERSEY CITY, NEW JERSEY.

FINGER GRIP FOR VIOLIN BOWS,

Application filed September This invention relates to devices used to facilitate manoeuvring violin bows and has one of its objects to provide an etficient grip capable of being adjusted to fit a persons hand and insure the fingers and thumb being properly applied to a bow.

It further feature is in the provision of means which not only render the handling of a bow effective but also prevent abrasion of the same by the fingers during long con tinued operation These and. other advantages, such as lightness and neatness of appearance, are accomplished by the novel construction and arrangement of parts hereinafter described and shown in the accompanying drawing, forming part of this disclosure, and in which Figure 1 is a fragmentary side elevational view of a conventional type of violin bow showing an application of the invention,

Figure 2 is an enlarged longitudinal sectional view of the grip as applied.

Figure 3 is a top plan view of the same.

Figure 4t is a transverse sectional view taken on-line *l-al of Figure 3.

Figure 5 is a similar sectional view taken on line 5-5 of Figure The stick of a violin bow is designated in the drawing by the numeral 10, the same having at its operative end a sliding block 11 to which one end of the stressed, string vibrating element 12, such hair, is secured, the block being adjusted along the bar by a nut 13, all these several parts being of any well known type of construction.

Such bows are usually opcratec by grasping the stick and block between the fingers and thumb when playing an instrument, which becomes exceedingly tiresome if used for a protracted interval of time and eventually wears the parts engaged, causing disfigurement of the same In the present invention a thin light tube let, as metal, hard rubber, indurated fiber or other suitable material, loosely fitting the stick 10, is formed with taper ends 15 containing longitudinal kerfs 16 permitting the extending portions to be sprung inwardly.

Adjacent the tapered portions of the tube are screw threaded portions 17, on which are engaged knurled nuts 18, having conical extensions 19 adapted to engage the split tapered end elements of the tube, causing them to contract and grip the stick 10 at 8, 1923. Serial No, 134,153,

any point, preferably adjacent the inner end of the block ii.

The main central portion of the tube 10 is knurled or otherwise corrugated to provice an efiicient grip and the wall of the tube contains two or more rows of perforations arranged diametrically opposite,

A thin spring metal finger guard 21, bent in the shape of an open hook, is formed on a strip presenting opposed transverse arms :2 curved to engage the exterior of the tube, these arms having, near their ends, inreaching nodules die formed and adapted to ena e selectively in any of the opposed p is of perforations 20 in the tube;

' From the foregoing it will be seen that the tube is adjustable around and lengthwise the bar of the bow and clamped at one or both ends to it; also that the finger guard 21 is readily adjustable on the tube to suit.

In addition to the foregoing a thumb rest may be used, the same consisting of an arcuately bent plate having arms 52%, sheared to present openings 25, the sheared center portions being curved to engage the tube and provided with inset projections 27, of the nature previously described, which engage in the perforations 20, each of the guards being independently adjustable.

Although the foregoing is descriptive of the preferred embodiment of the invention it will be apparent that minor changes may be made in its construction, without the enercise of invention or conflicting with the scope of the claims hereto appended Having thus described my invention, what l, claim as new and desire to secure by Letters Patent, is

l. A finger grip for violin bows comprisiug a tube for loosely surrounding the stick of the bow, said tube being externally threaded at both ends, and provided with split cones on the ends thereof, nuts having screw threaded engagement with the tube to contract each cone, said tube having opposed perforations therein, designed to hold a finger rest in selected positions on the tube.

2. A finger grip for violin bows compri ing a tube for loosely surrounding the stick of the bow, said tube being externally thread-ed at both ends, and provided with split cones on the ends thereof, nuts having screw threaded engagement with the tube to contract each cone, said tube having opposed perforations therein, a thumb rest having spring arms en ageable over the tube, and detents carried by said arms engageable in the perforations.

3. A finger grip for violin bows, eoinprising u tube for loosely surrounding the stiek of the bow, ineuns ut the ends of said tube to clamp the same on the bow stick, said tube having opposed perforations therein, a thumb rest having spring arms engngetiliile over the tube, and detents carried by said arms engageable in the perforations.

4. A finger grip for violin bows comprising a tube for loosely surrounding the stick of the bow, means at the ends of said tube to clamp the Same in fixed position on the bow stick, said tube having opposed rows of spaced perforations, a hook shaped finger guard having spring arms to partially encircle said tube, a thumb rest having spring arms to partially encircle said tube, and detents on each of said arms for selectively engaging the spaced perforations.

A finger grip for a violin bow comprising a thin sheet metal tube to loosely surround the stirk of the bow, said tube being externally threaded back from the ends at both ends, and provided with slits on the ends thereof forming flexible tongues, and chuck nuts having screw threaded engagement with the tube to contract the tongues on the bow stick.

This specification signed this seventh day of September, 1926.

JOSEPH GAYNOR.

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