US103991A - Improvement in penmen s wrist-supporters - Google Patents
Improvement in penmen s wrist-supporters Download PDFInfo
- Publication number
- US103991A US103991A US103991DA US103991A US 103991 A US103991 A US 103991A US 103991D A US103991D A US 103991DA US 103991 A US103991 A US 103991A
- Authority
- US
- United States
- Prior art keywords
- wrist
- supporters
- improvement
- penmen
- supporter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000707 Wrist Anatomy 0.000 description 16
- 239000004744 fabric Substances 0.000 description 4
- 206010016256 Fatigue Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03543—Mice or pucks
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0371—Platforms for supporting wrists
Definitions
- thisevil is the object of my invention, which consists in arranging upon the under face of the wrist-plate, and at equal distances from a line drawn centrally and longitudinally thereof, two rigidly-fixed studs or pivots having convex bearing surfaces, which, while affording, a support to the wrist and allowing it to move freely, will cause but little friction while sliding over the surface of the paper.
- A denotes the body of the supporter, which is to be made of wood or any other suitable material, the same being covered with velvet, felt, cloth, or any other soft and proper fabric.
- the said body portion I usually make about two inches and a half in length by two in breadth, the ends thereof being rounded. Furthermore, the upper surface of the said body is curved transversely to fit the shape or curved-form of the wrist.
- the said device so constructed is to be conned to the wrist of a person by means of an elastic band, D, one end of which is fastened to one side of the part A, while the other is provided with a hook, a, to catch into an eye or staple, b, disposed on the opposite side thereof.
- the said band is also furnished with a buckle, E, by which the former may be adjusted to t wrists of different sizes.
- I claim- My improved wrist-supporter as described, the same consisting of theJ body part or plate A, provided With two rigidly-fixed studs or projections having convex bearing-surfaces, and the adjustable band D, constructed, combined, and arranged together in manner and for the purpose set forth.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
UNITED STATES I HENRY F. CRISTY, CHARLESTOWN, MASSACHUSETTS.
IMPROVEMENT IN PENMENS WRIST-SUPPORTERS.
Specification forming part of Letters Patent No. 103,991, dated June 7, 1870.
To all whom t may concern: Y
Be it known that I, HENRY F. CRISTY, of Charlestown, in the county of Middlesex and State of Massachusetts, have invented an improved wrist-supporter or device for supporting the wrist of a-person while engaged in writin g 5 and I dohereby declare the same to be fully described in the following specification and represented in the accompanying draw ings, of which- Figure l denotes a side elevation, Fig. 2 an end elevation, and Fig. 3 atop view, of my said invention.
It is a fact well known to those accustomed to the use of a pen that the act of writing, if long continued, always produces more or less weariness of the wrist, and that novices o1' those just commencing to learn the art experience this difficulty in a great degree.
To obviate thisevil is the object of my invention, which consists in arranging upon the under face of the wrist-plate, and at equal distances from a line drawn centrally and longitudinally thereof, two rigidly-fixed studs or pivots having convex bearing surfaces, which, while affording, a support to the wrist and allowing it to move freely, will cause but little friction while sliding over the surface of the paper.
ln the said drawings, A denotes the body of the supporter, which is to be made of wood or any other suitable material, the same being covered with velvet, felt, cloth, or any other soft and proper fabric. The said body portion I usually make about two inches and a half in length by two in breadth, the ends thereof being rounded. Furthermore, the upper surface of the said body is curved transversely to fit the shape or curved-form of the wrist.
On the, bottom or convex surface of the part A there are arranged two round or semi-spherical studs or projections, B B, which are firmly the partA; but this I do not consideras goodan arrangement, as it gives to the wrist too much pivotal action, whereas the arrangement of the two studs, as represented, while it permits a sufcientfreedom of the wrist, supports it more equably and prevents the arm from tipping while being moved laterally.
The said device so constructed is to be conned to the wrist of a person by means of an elastic band, D, one end of which is fastened to one side of the part A, while the other is provided with a hook, a, to catch into an eye or staple, b, disposed on the opposite side thereof. The said band is also furnished with a buckle, E, by which the former may be adjusted to t wrists of different sizes.
I do not claim, broadly, a wrist-supporter irrespective of its construction, asIam aware that such is not new.
I claim- My improved wrist-supporter, as described, the same consisting of theJ body part or plate A, provided With two rigidly-fixed studs or projections having convex bearing-surfaces, and the adjustable band D, constructed, combined, and arranged together in manner and for the purpose set forth.
vHENRY F. GRISTY.
Witnesses F. P. HALE, G. S. GRoWNINsHIVELD.
Publications (1)
Publication Number | Publication Date |
---|---|
US103991A true US103991A (en) | 1870-06-07 |
Family
ID=2173476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US103991D Expired - Lifetime US103991A (en) | Improvement in penmen s wrist-supporters |
Country Status (1)
Country | Link |
---|---|
US (1) | US103991A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3453751A (en) * | 1966-09-08 | 1969-07-08 | Irene Dorsey Kuhlman | Writer's aid |
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0
- US US103991D patent/US103991A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3453751A (en) * | 1966-09-08 | 1969-07-08 | Irene Dorsey Kuhlman | Writer's aid |
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