US1303304A - The correct holding of the hand when writing and for - Google Patents

Description

c. HA USELMANN. DEVICE FOR SECURING THE COBRECI HOLDING OF THE HAND WHEN WRITING AND FOR FACILITATINGSUCH WRITING. APPLICATION FILED FEB. 1. 1910.

1,303,304, Patented May 13, 1919.

" hurman STATES PATENT OFFICE.

CHRISTIAN HAUSELMANN, or SUMISWALD, SWITZERLAND.

DEVICE FOR SECURING THE CORRECT HOLDING- OF THE HAND WHEN WRITING AN D FOR FACILITATING SUCH WRITING.

Specification of Letters latent.

Patented May 13, 1919.

Application filed. February 7, 1918. Serial No. 215,849.

To all whom it may concern:

Be it known that I, CHRISTIAN Hliusnn- MANN, a citizen of the Swiss Confederation, and residing at Sumiswald, Switzerland,

. have invented a certain new and useful Im- It consists of a curved plate attachable to the elbow-side of a hand and provided with an outwardly-projecting part adapted to support the hand on a writing'rest so as to keep the hand out of contact with sald rest.

The accompanying drawing represents one working form of the device as an example.

Figure 1 is a top-view of the same.

Fig. 2 a side elevation of the left hand side of Fig. 1.

Fig. 3 an end view.

Figs. 4 and 5 are views of details, and

Fig. 6 is a top-view of the device fitted to a hand.

The cylindrically curved plate 1 is shaped near to one end of it into a hemispherical socket 2 (Fig. 4) with a perforated apex.

The likewise hemispherical head 3 of a screw 4 is lodged within said socket the stem of said screw projecting through the perforation of the socket to its outside and carrying there a cap 5 and a fiat spring 7 slidable lengthwise and tightened agalnst the cap by means of a milled screw nut 6. By this means the cap from the outside of the hand and the head 3 of screw 4: from the inside are pressed against the walls of the socket 2 so as to steady the parts 3, 4:, 5, 6 and 7 in said socket. By loosening the nut all said parts may be adjusted within certain limits in any direction and besides the spring may be turned around screw 4:. The somewhat outwardly curved sprlng 7 carries at its end a socket 8 and has lodged therein, so as to project somewhat therefrom, a ball 9, serving as support for a hand against which the plate 1 is secured 1n the manner shown in Fig. 6. Plate 1 1s pro vided on its outside and to both sides of its ridge-line with two longitudinal ribs 10 and outside of the same with screw-studs 11 which are carrying a springy and curved blade 13 tightened thereonto by means of screw. nuts 12. By the more or less tighten- 111g of said nuts the blade 13 will be bent more Or less so that its free ends may be adusted at a distance from each other corresponding to the thickness of the hand to be supported. In a slot 14 provided in the one end of this blade 13 a clamp 16 is made adjustable by means of a screw 15 and a fiat sprin 17 i inserted between clamp 16 and blade 13 and crosswise to said blade, said spring 17' being bent at its ends as shown in Fig. 2 and being provided with a slot or with a number of holes. The end of blade 13 as shown in Fig. 3 on the top side 13 fitted on the inside with a bearing-plate 18 and the ends of spring 17 are fitted with bearing- plates 19 and 20 by means of which spring 17 is bearing against the rear, while plate 18 is bearing against the palm of the hand fitted with the device. The plates 18, 19 and 20 are preferably made of elastic matter, as for instance of cork. A rod 21 is stuck through a perforation of clamp 16 and may be adjusted by means of a set screw 22. One end of rod 21 is bent inwardly and carries a swiveled and springy blade 23 provided on its inside with two bearing-plates 24. This blade 23 is intended to grasp the thumb-side of the wrist. In order to have it bearing against the wrist a helical spring 26 is provided on said rod 21 between clamp 16 and the knob 25, with the tendency to push rod 21 upwardly as seen in Fig. 6.

When blade 23 is hearing against the wrist, screw 22 is to be tightened. In this way the device will become sufficiently well secured to the hand so as to move freely with the same. While writing with the hand fitted with the described and represented device ball 9 will bear against the writing-rest so as to support the elbow-side of the hand at a determined and adjustable height above the writing surface. The hand will be forced thereby to a correct holding for writing. By a corresponding adjustment of spring 7 the resting point of the hand may be displaced more to the inward or to the outward, ac- COI'diI'lg to need. Owing to the springy arrangement of the resting-point the hand is not supported rigidly but elastically.

The taking-ofi' of the device from the hand is effected by loosening the set screw 22, by

pulling the rod 21 in an opposite direction from the action of spring 26 and by turning the rod, so as to bring the blade 23 on the top-side of the wrist. The adjusting of the device on the hand is effected in a contrary manner and may be easily done and performed with the left hand.

The device as described and represented in the above is particularly well suited for persons with-unwieldy hands and may be fitted to hands of any size.

Claims:

1.111 a device for securing the correct holding of the hand when Writing and for facilitating such writing, the combination with a curved plate attachable to the elbow- 'side ofthe hand, of a hemispherical socket formed on said plate and of a flat spring attached adjustably at one end to said socket and carrying at 1ts other and free end a rotary ball all as shown and described and for the purpose set forth.

2. In a device for securing the correct holding of the hand when writing, the coinbination with a cylindrically curved plate having two longitudinal ribs on its outside at equal distances from its center, of screwstudswith nuts outside of said ribs, of a springy and curved blade secured to said ribs and studs, of a rotary and slidable curved rod fitted on one end of said blade, of a swiveled'and springy blade fitted to the curved end of said rod, all substantially as shown and described and for the purpose set forth.

3. In a device for securing the correct holding of the hand when writing, the combination with a cylindrically curved plate,

having two longitudinal ribs on its outside at equal distances from its center, of screwstuds with nuts outside of said ribs, of a springy and curved blade secured to said ribs and studs, of a rotary and slidable curved rod fitted on one end of said blade, of a helical spring sleeved on said rod and of a swiveled and springy blade fitted to the curved end of said rod and carrying bearingplates all substantially as shown and described and for the purpose set forth.

4. In a device for securing the correct holding of the hand when writing, the combination with a cylindrically curved plate of a hemispherical socket formed on said plate, of a flat spring attached adjustably with one end to said socket and carrying at its other and free end a rotary ball, of two longitudinal ribs provided on the outside and to both sides of the center line of said plate, of screw-studs with nuts outside of said ribs, of a springy and curved blade secured to said ribs and studs, of a rotary and slidable curved rod fitted on one end of said blade, of a bent flat spring secured to the same end of the blade and provided with bearing-plates, of a swiveled and springy blade provided with bearing-plates and fitted to the curved end of said rod, and of a bearing-plate fitted to the other end of said blade; all substantially as shown and described and for the purpose set forth.

In testimony whereof I affix my signature in the presence of two witnesses.

CHRISTIAN HAUSELMANN.

Witnesses:

vHANs RINDERKUEGHT,

FRIEDRICH ARONING.

Copies of this patent may'be obtained. for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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