US42473A - Improvement in crutches - Google Patents
Improvement in crutches Download PDFInfo
- Publication number
- US42473A US42473A US42473DA US42473A US 42473 A US42473 A US 42473A US 42473D A US42473D A US 42473DA US 42473 A US42473 A US 42473A
- Authority
- US
- United States
- Prior art keywords
- tube
- crutches
- improvement
- screws
- armpit
- 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
- 239000000899 Gutta-Percha Substances 0.000 description 8
- 229920000588 Gutta-percha Polymers 0.000 description 8
- 210000001847 Jaw Anatomy 0.000 description 8
- 240000000342 Palaquium gutta Species 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/02—Crutches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/924—Coupled nut and bolt
- Y10S411/926—Positive lock
- Y10S411/928—Thread gripper
Definitions
- my invention consists in combining ay tube of gutta-percha, 0r an equivalent substance, with the sau' or frame ofthe crutch in such a manner as to form a yielding and easy rest for the armpit.
- A is a tube, which I make of guttapercha, or other equivalent substance.
- the said screws are metallicjaws, between which the said tube is secured by means of the screws C C.
- the said screws are of conical form, as representediin the drawings, (see Fig. 2,) and there are conical openings cV a. in the jaws B B, in which the ends of the tube are expanded by the force of the said screws.
- Thejaws B B have openings d d, into which the prongs of the frame ot' the crutch are inserted.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
varmpit-rest.
UNITED STATES PATENT OEErcE.
- JOHN HABTMAN, JR., OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN CRUTCHES.
Specification forming part ot' Letters Patent No. 42.473, dated April 26, 1863 antedated December 2.2, 18 3. i
To @ZZ whom it may concern..l
Be it known that I, JOHN HARTMAN, Jr., of the city and county ot' Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Crutches; and I do hereby declare that the following is a full, clear, and exactdeseription ofthe construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figurel isa perspective view of an improved Fig. 21s a vertical section of the same. Fig. 3 is aperspective view of' a guttapercha tube, A, which constitutes the support l'or the armpit. Fig. 4 is a perspective view ot' one 0f thejams B.
Lilie letters in all the figures represent the same parts.
The nature of my invention consists in combining ay tube of gutta-percha, 0r an equivalent substance, with the statt' or frame ofthe crutch in such a manner as to form a yielding and easy rest for the armpit.
To enable others skilled in the art to make and use my invention, I will proceed to deszribe its construction and operation.
A is a tube, which I make of guttapercha, or other equivalent substance.
B B are metallicjaws, between which the said tube is secured by means of the screws C C. The said screws are of conical form, as representediin the drawings, (see Fig. 2,) and there are conical openings cV a. in the jaws B B, in which the ends of the tube are expanded by the force of the said screws. By this ar rangement the tube 'is securely held in its place; but in order to fasten the ends of the tube more perfectly I construct the screws O C with annular grooves b b, into which4 the I former con tract when forced into their sockets, as represented in Fig. 2. Thejaws B B have openings d d, into which the prongs of the frame ot' the crutch are inserted.
There may be a cross-rod combined with the jaws B B in any convenient manner to add stiffness to them, it' desired, or the jaws may be made in a single piece. It will readily be seen that the tube A will yield to the pressure exerted upon it by the weight ot' the body sufficiently to accommodate itself to the form otthe armpit, and thus give au easy support to the latter.
Having thus fully described the construction and operation of my improvement in crutches, what I claim therein as new, and desire tosecure by Letters Patent, is-
l. Constructingandcombiningwiththestai or frame of thecrutchatube of guttapercha, or other equivalent substance, to forni a yieldin g and easy rest for the armpit, substantially as described.
2. The combination ofthe tube A with the jaws B B by means of the conical screws C C, or their equivalent, substantially in the manner and for the purpose above set forth.
In testimony that the above is my invention I have hereunto set my hand and affixed my seal this 16th day of November, 1863.
J. HARTMAN, Ju.. [L s] Witnesses: V
\ STEPHEN Us'rIoK, J AMES MGCAHEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US42473A true US42473A (en) | 1864-04-26 |
Family
ID=2112040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US42473D Expired - Lifetime US42473A (en) | Improvement in crutches |
Country Status (1)
Country | Link |
---|---|
US (1) | US42473A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2437381A (en) * | 1945-01-12 | 1948-03-09 | Arthur V Cullen | Embalming appliance |
US9848502B1 (en) | 2017-03-24 | 2017-12-19 | Shin Zu Shing Co., Ltd. | Hinge assembly and foldable display device using the same |
-
0
- US US42473D patent/US42473A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2437381A (en) * | 1945-01-12 | 1948-03-09 | Arthur V Cullen | Embalming appliance |
US9848502B1 (en) | 2017-03-24 | 2017-12-19 | Shin Zu Shing Co., Ltd. | Hinge assembly and foldable display device using the same |
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