US3185012A - Capo tasto - Google Patents

Capo tasto Download PDF

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Publication number
US3185012A
US3185012A US408597A US40859764A US3185012A US 3185012 A US3185012 A US 3185012A US 408597 A US408597 A US 408597A US 40859764 A US40859764 A US 40859764A US 3185012 A US3185012 A US 3185012A
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channel
lever
notches
capo
secured
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US408597A
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Dunlop James
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Dunlop James
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/053Capos, i.e. capo tastos

Description

May 25, 1965 J. DUNLOP 3,185,012

CAPO TASTO Filed Nov. 3. 1964 INVENTOR. JAMES DUNLOP United States Patent O 3,185,012 CAP@ TASTO James Duniop, 926 37th St., Richmond, Calif. Filed Nov. 3, 1964, Ser. No. 408,597 6 Claims. (Cl. 841-318) The present invention relates to the clamp-like devices known as capos or capo tastos which are applied to the necks of stringed instruments, especially guita-rs, mandolins land banjos, to shorten the effective length of the strings. This makes it easier for players of limited experience to play higher keys since the same fingering may be used in the higher keys established by the capo as in the basic key. Moreover, it changes the timbre of a performance and thus lthe use of .a capo provides a pleasing variety of .different timbres.

It is an object yof my invention to provide a capo that is of a simple and inexpensive and yet of durable construction.

Another object `of the invention is to provide an adjustable capo that may readily and properly be applied to instruments having necks of diiferent width and different numbers of strings, :and once applied will remain dependably in i-ts proper position.

Still another object of the invention is to provide a device of the type referred to that permits selective adjustrnent of the pressure applied to the `strings of the instruments.

These and lother objects of the invention will be apparent from the following description of the accompanying drawing which illustrates a preferred embodiment thereof, andy wherein FIGURE 1 is a perspective of the capo of my invention before it has been applied to an instrument;

FIGURE 2 is a fragmentary perspective of the neck of a guitar to which the capo of my invention has been applied; and

FIGURES 3 and 4 are longitudinal sections of the capo shown in FIGURES 1 and 2 illustrating consecutive phases in the manner in which it is applied to the neck 4of the guitar.

The capo tasto of my invention comprises a channel 10 of roughly U-shaped cross-sectional contour, which may be made from wood or metal but is preferably molded from a suitable plastic. The side ilanges 12a and 12b of the channel are preferably arranged to diverge slightly and have bevelled end edges 14, as best shown in FIGURES 3 and 4. At one of its ends, the bottom or floor 16 of the channel 10 is forked as shown at 18 in FIGURE l, and held in the prongs 20a and 2Gb of the fork is a pin 22 around which is engaged the looped end 24 of a band or cord 26 of a non-elastic, stretch-resisting material, such as a band or cord woven from nylon. Provided in the longitudinal edges of the channel flanges 12a and 12b are sets of transversely aligned notches or recesses 28a and 28h which are arranged to slant in a direction away from the forked end 18 of the channel oor 16 and which have rounded bottom edges 30. Firmly secured to the outer surface of the iioor or bottom 16 of the channel 10, such as by means of a suitable glue, p

is a thin elongated pad 32 of a resiliently yieldable material, such as natural or synthetic rubber.

A loop 34 formed by the opposite end of the band or cord 26 is engaged over a pin 36 that is held in and between the prongs 38a and 38h of a fork 40 which is formed by one end of a one-armed lever 42. Said lever may likewise be made of wood, metal or plastic material. The prongs 38a and 38h are relatively long, and the pin 36 is held in said prongs near the bottom of the cleft formed by said prongs. The pivot of lever 42 is formed by small circular disk-shaped beads 44a and 44b that are ice secured to the tips of the prongs 38a and 38h on the outer surfaces thereof and which are of a diametrical size to lit smoothly into the notches 28a and 28b in the longitudinal edges of the channel flanges 12a and 12b, respectively.

In practice the channel i@ is placed upon and transversely across the neck 46 of the stringed instrument with its pad 32 in contact with the strings 48 (FIGURE 2). The player then gets hold of the lever 42 and conducts the cord 26 from the forked end of channel 10 underneath and around the neck 46 of the instrument and engages the disk-shaped beads 44a and 44b on the outside of the lever prongs 38a and 38b from the opposite end of the channel into that set of notches in the flanges of said channel that can conveniently be reached without pulling the cord or band with any force (FIGURE 3). He then swings the lever 42 upon the pivot formed by the beads 44a and 44h in the engaged notches 28a and 28b in counter clockwise direction toward the forked end 18 of the channel door 16 from the position shown in FIGURE 3 wherein the pin 36 of the lever 44 and the looped end 34 of cord 26 lie on the right side of the pivot established by the beads 44a, 4417 into the position illustrated in FIGURE 4 wherein the pin 36 and the loop 34 lie on the left side of said pivot. In this manner the cord 26 is securely tightened around the neck 48 of the instrument without any great eifort on the players part, and due to the slanted disposition of notches 28a and 28h the pivot disks 44a and 44b move to the bottom of said notches during the described operation. From there they cannot disengage themselves accidentally once the lever 42 is in the position illustrated in FIGURE 4. Thus the capo tasto is held securely in its desired position upon the neck 48 of the instrument in the manner of a toggle-joint. On the other hand, whenever the player wishes to move the capo tasto to a new position, it is merely necessary to lift the free end of the lever 42 with gentle `force and return the lever to the position shown in FIGURE 3. In this position the capo tasto may easily be slid along the neck of the instrument to any desired location without the danger of marring the instrument.

The great advantage of the capo tasto of my invention is that in spite of its simple and inexpensive construction it may conveniently and effectively be applied to, and will reliably remain in position on, stringed instruments of widely different neck sizes and with greatly diiferent numbers of strings depending upon the length of the channel 10 and the number of notches 28 provided in its flanges, without need for an elastic band and without need for any adjustment or manipulation other than engagement of the pivot disks 44a and 44b on the prongs 38a and 3812 of lever 42 with the notches 28a and 28b that can conveniently be reached; and due to the presence of the pad 32 of resiliently yieldable material upon the bottom of the channel 10, the pressure exerted by the channel upon strings of diiferent thicknesses is properly evened out. Moreover, due to the availability of many closely spaced consecutive sets of notches 28a, 28h in the iianges of the channel 10, the player may selectively adjust the amount of pressure exerted by the capo upon the strings by choosing between longitudinally adjacent sets of notches. Furthermore, due to the absence of stretchable and/ or elastic materials in its construction, the capo of my invention cannot only be depended upon to remain in position for extended period of use without need for retightening the cord 26 but has a 4practically unlimited life time since a non-elastic stretch-resisting cord lasts much longer than elastic cords.

While I have explained my invention with the aid of a particular embodiment thereof, it will be understood that the invention is not limited to the specific constructional aisaoia details illustrated and described by way of example and may be departed from without departing from the scope and spirit of the invention.

l claim:

1. A capo tasto for stringed instruments comprising a channel including a floor portion having an outer surface and secured thereto a pad of elastic material and a pair of transversely spaced side iianges having longitudinal edges and provided therein a plurality of transversely aligned pairs of notches; a lever having beads of a size to fit into said notches secured to the outer sides at one end thereof; and a band connecting one end of said channel to said lever at a point 4inwardly removed from the bead supporting end thereof.

2. A capo tasto for stringed instruments comprising a channel including a iioor portion having an outer surface and secured thereto a pad of elastic material and a pair of transversely spaced side flanges having longitudinal edges and provided therein a plurality of transversely aligned pairs of notches having arcuate bottoms; a lever of a transverse width to tit into said channel having circular beads of a size to tit into said notches secured to the outer sides at one end thereof, and a band connecting one end of said channel to said lever at a point inwardly removed frorn the bead supporting end thereof.

3. A capo tasto for stringed instruments comprising a channel including a floor portion having an outer surface and a pad of resiliently yieldable material secured to said surface and a pair of transversely spaced side flanges having longitudinal edges and provided in said edges a plurality of transversely aligned pairs of notches slanting in a direction toward one of the ends of said channel; a tensioning lever having beads of a size to fit smoothly into said notches secured to the outer surfaces of said lever at one end thereof; and a band connecting the other end of said channel and said lever at a point inwardly removed from said bead supporting end thereof.

4. A capo tasto for stringed instruments comprising a channel including a floor portion having an outer surface and a pad of resiliently yieldable material secured to said surface and a pair of transversely spaced side flanges having longitudinal edges and provided in said edges a plurality of transversely aligned pairs of notches slanting in a direction toward one of the ends of said channel; a tensioning lever of a transverse Width to fit into said channel having a forked end and axle supported in the forks formed by said end near the bottom of the recess formed by said forks, and circular beads of a size to fit smoothly into said notches secured to the outer surfaces of said forks near the tips thereof; and a non-elastic stretch-resisting band connected to the other end of said channel and having a loop engaged over said axle in said forked lever end.

5. A capo tasto for stringed instruments comprising a channel including a floor portion having a forked end and an axle held in the forks thereof, a pair of transversely spaced side iianges and provided in the longitudinal edges of said flanges a plurality of transversely aligned pairs of notches slanting in a direction away from the forked end of said floor portion, said floor portion having an outer surface and secured thereto a pad of a resiliently yieldable material; a tensioning lever of a transverse width to fit smoothly into said channel having a forked end and an axle supported in the forks formed by the forked end of said lever near the bottom of the recess formed by said forks, and beads of a size to tit into said notches secured to the outer surfaces of said lever forks near the tips thereof; and a band for connecting said lever to said channel having loops at its opposite ends engaged over said axle in said channel floor and said axle in said forked lever end.

6. A capo tasto for stringed instruments comprising a channel of U-shaped cross-sectional contour including a floor portion having a forked end and an axle held in the forks thereof, a pair of transversely spaced side flanges having beveled end edges, and provided in the longitudinal edges of said flanges a plurality of transversely aligned notches slanting in a direction away from the forked end of said floor portion, said tioor portion having an outer surface and secured thereto a thin pad of a resiliently yieldable material; a tensioning lever of a transverse width to tit smoothly -into said channel having a forked end and an axle supported in the forks of said lever near the bottom of the recess formed by said forks, and circular beads of a size to t smoothly into said notches secured to the outer surfaces of said lever forks near the tips thereof; and a non-elastic stretch-resisting band for connecting said lever to said channel having loops at its opposite ends engaged over said axle in said channel iioor and said axle in said forked lever end.

References Cited by the Examiner UNITED STATES PATENTS 402,577 5 89 Filstrup 84-318 489,525 1/93 Dahlman 84-318 656,904 8/0() Pletcher 84-318 FOREIGN PATENTS 277,458 9/27 Great Britain.

LEO SMILOW, Primary Examiner.

Claims (1)

1. A CAPO TASTO FOR STRINGED INSTRUMENT COMPRISING A CHANNEL INCLUDING A FLOOR PORTION HAVING AN OUTER SURFACE AND SECURED THERETO A PAD OF ELASTIC MATERIAL AND A PAIR OF TRANSVERSELY SPACED SIDE FLANGES HAVING LONGITUDINAL EDGES AND PROVIDED THEREIN IN PLURALITY OF TRANSVERSELY ALIGNED PAIRS OF NOTCHES; A LEVER HAVING BEADS OF A SIZE TO FIT INTO SAID NOTCHES SECURED TO THE OUTER SIDES AT ONE END THEREOF; AND A BAND CONNECTING ONE END OF SAID CHANNEL TO SAID LEVER AT A POINT INWARDLY REMOVED FROM THE BEAD SUPPORTING END THEREOF.
US408597A 1964-11-03 1964-11-03 Capo tasto Expired - Lifetime US3185012A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299987B (en) * 1967-06-20 1969-07-24 Wowries August H Capodaster
US3598012A (en) * 1970-06-29 1971-08-10 James Dunlop Adjustable capotasto
US3647930A (en) * 1968-07-08 1972-03-07 August H Wowries Tuning device
US3915051A (en) * 1974-08-28 1975-10-28 George R Kincaid Stringed instrument chord player
JPS52227U (en) * 1975-06-21 1977-01-05
JPS525513U (en) * 1975-06-26 1977-01-14
US4823670A (en) * 1987-11-23 1989-04-25 Gherman Steven B Capo
US5492045A (en) * 1994-02-07 1996-02-20 Roblee; Todd A. Quick release capo for stringed instrument
US20070175312A1 (en) * 2006-01-30 2007-08-02 Bruce Walworth Capo applicable to dobro and slide guitars, and other raised-string instruments
DE102006059821B3 (en) * 2006-12-11 2007-09-13 Wittner Gmbh & Co.Kg Capotasto for fixing at neck of stringed musical instrument e.g. guitar, has strap arranged at fixed angle to string attachment area of string attachment device, where capotasto is hung at neck of instrument by strap
US20130055877A1 (en) * 2010-02-09 2013-03-07 Jim Duncan Capo device
US8618390B2 (en) * 2012-01-31 2013-12-31 Robert Ruck Adjustable strap-on capotasto with replaceable strap and method of use
US20180268789A1 (en) * 2017-03-16 2018-09-20 Gotoh Gut Co., Ltd. Capotasto

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US402577A (en) * 1889-05-07 Capodastro
US489525A (en) * 1892-05-19 1893-01-10 Capo tasto
US656904A (en) * 1899-12-01 1900-08-28 Thomas M Pletcher Capo tasto.
GB277458A (en) * 1926-07-14 1927-09-22 Alvin Danglada Keech Improvements in and relating to transposing devices for stringed instruments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US402577A (en) * 1889-05-07 Capodastro
US489525A (en) * 1892-05-19 1893-01-10 Capo tasto
US656904A (en) * 1899-12-01 1900-08-28 Thomas M Pletcher Capo tasto.
GB277458A (en) * 1926-07-14 1927-09-22 Alvin Danglada Keech Improvements in and relating to transposing devices for stringed instruments

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299987B (en) * 1967-06-20 1969-07-24 Wowries August H Capodaster
US3504589A (en) * 1967-06-20 1970-04-07 August H Wowries Capotasto
US3647930A (en) * 1968-07-08 1972-03-07 August H Wowries Tuning device
US3598012A (en) * 1970-06-29 1971-08-10 James Dunlop Adjustable capotasto
US3915051A (en) * 1974-08-28 1975-10-28 George R Kincaid Stringed instrument chord player
JPS52227U (en) * 1975-06-21 1977-01-05
JPS525513U (en) * 1975-06-26 1977-01-14
US4823670A (en) * 1987-11-23 1989-04-25 Gherman Steven B Capo
US5492045A (en) * 1994-02-07 1996-02-20 Roblee; Todd A. Quick release capo for stringed instrument
US20070175312A1 (en) * 2006-01-30 2007-08-02 Bruce Walworth Capo applicable to dobro and slide guitars, and other raised-string instruments
US7390948B2 (en) 2006-01-30 2008-06-24 Bruce Walworth Capo applicable to dobro and slide guitars, and other raised-string instruments
DE102006059821B3 (en) * 2006-12-11 2007-09-13 Wittner Gmbh & Co.Kg Capotasto for fixing at neck of stringed musical instrument e.g. guitar, has strap arranged at fixed angle to string attachment area of string attachment device, where capotasto is hung at neck of instrument by strap
US20090241752A1 (en) * 2006-12-11 2009-10-01 Wittner Gmbh & Co. Kg Capo tasto
US20130055877A1 (en) * 2010-02-09 2013-03-07 Jim Duncan Capo device
US8618390B2 (en) * 2012-01-31 2013-12-31 Robert Ruck Adjustable strap-on capotasto with replaceable strap and method of use
US20180268789A1 (en) * 2017-03-16 2018-09-20 Gotoh Gut Co., Ltd. Capotasto
US10229660B2 (en) * 2017-03-16 2019-03-12 Gotoh Gut Co., Ltd Capotasto

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