US55043A - Improvement in pruning-sh ears - Google Patents
Improvement in pruning-sh ears Download PDFInfo
- Publication number
- US55043A US55043A US55043DA US55043A US 55043 A US55043 A US 55043A US 55043D A US55043D A US 55043DA US 55043 A US55043 A US 55043A
- Authority
- US
- United States
- Prior art keywords
- pruning
- improvement
- shears
- ears
- knife
- 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
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/02—Secateurs; Flower or fruit shears
- A01G3/025—Secateurs; Flower or fruit shears having elongated or extended handles
Definitions
- My invention consistsof a rod and spiral sprin g combined with and adapted to the hooked portion and knife of pruning-shears, substantially as described hereinafter, the spiral spring havingmore elasticity than the hat or curved springs hitherto used, and permitting amore extended movement of the knit'e and the use of the instrument on larger branches.
- Figures l and 2 are side views ot' my improved prun4 ing-shears, a-nd Fig. 3 a plan view.
- the hookedportion A ofthe shears is provided with the usual socket a for attach ment to a suitable pole or handle, and to one side ot' the hook the knife B is hinged by means ot' a pin, b, the knit'e being provided with a steel cutting-edge, x, and having the usual arm d, to an eye at the end ot which is secured the operating-cord.
- To a lug on this arm is jointed the upper end ot' a rod, D, the lower end of which passes through and is guided by a projection, e, at or near the upper portion of the socketa., and between this projection and a collar, f, on the socket intervenes a spiral spring, It, which is coiled round the rod.
- the hooked portion of the instrument is a projection, t, which serves as a stop to limit the movement ot' the knit'e B and its arm d.
- t On one side ot' the hooked portion of the instrument is a projection, t, which serves as a stop to limit the movement ot' the knit'e B and its arm d.
- the hinged knife In ordinary spring-shears the hinged knife is operated when the oord is released by a fiat or curved spring, the elasticity of which is so limited that Ithe movement of the knife must have a corresponding ⁇ limitation. Hence it can be used only for severing ⁇ the smaller branches of trees.
- the spiral spring It is capable of yielding to a greater extent than a dat or curved spring, it will be evident that a more extended movement ot' the knife may be obtained, and that branches of' greater dimensions may consequently be severed by the instrument.
- the spiral spring is, moreover, less liable to breakage than the ordinary at or curved spring.
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Scissors And Nippers (AREA)
Description
UNITED STATES PATENT CEEICE.
ADAM BAUMANN, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN PRUNlNG-SHEARS.
Specification forming part of Letters Patent No. 55,0413, dated May 29, 1866.
To all whom #It may concern.'
Be it known that I, ADAM BAUMANN, ot Philadelphia, Pennsylvania, have invented an Improvement in Pruning-Shears; and I do hereby decla-re the following to be a full, clear, and exact description of the same, reference being had to the aeeompanyin g drawings and to the letters of reference marked thereon.
My invention consistsof a rod and spiral sprin g combined with and adapted to the hooked portion and knife of pruning-shears, substantially as described hereinafter, the spiral spring havingmore elasticity than the hat or curved springs hitherto used, and permitting amore extended movement of the knit'e and the use of the instrument on larger branches.
In order to enable others to make and use my invention, I will now proceed to describe its construction and operation.
On reference to the accompanying drawings, which form a part of this specification, Figures l and 2 are side views ot' my improved prun4 ing-shears, a-nd Fig. 3 a plan view.
The hookedportion A ofthe shears is provided with the usual socket a for attach ment to a suitable pole or handle, and to one side ot' the hook the knife B is hinged by means ot' a pin, b, the knit'e being provided with a steel cutting-edge, x, and having the usual arm d, to an eye at the end ot which is secured the operating-cord. To a lug on this arm is jointed the upper end ot' a rod, D, the lower end of which passes through and is guided by a projection, e, at or near the upper portion of the socketa., and between this projection and a collar, f, on the socket intervenes a spiral spring, It, which is coiled round the rod. On one side ot' the hooked portion of the instrument is a projection, t, which serves as a stop to limit the movement ot' the knit'e B and its arm d. In ordinary spring-shears the hinged knife is operated when the oord is released by a fiat or curved spring, the elasticity of which is so limited that Ithe movement of the knife must have a corresponding` limitation. Hence it can be used only for severing` the smaller branches of trees. As the spiral spring It is capable of yielding to a greater extent than a dat or curved spring, it will be evident that a more extended movement ot' the knife may be obtained, and that branches of' greater dimensions may consequently be severed by the instrument.
The spiral spring is, moreover, less liable to breakage than the ordinary at or curved spring.
I claim as my il'ivention and desire t0` secure by Letters Patent- The rod D and its spiral spring l1., combined with and adapted to the hooked portion and knife of pruning-shears, substantially as and for the purpose herein set forth.
In testimony whereofI have signed my name to this specifica-tion in the presence of two subscribing witnesses.
ADAM BAUMANN.
Witnesses:
GHAs. B. PRICE, H. HoWsER.
Publications (1)
Publication Number | Publication Date |
---|---|
US55043A true US55043A (en) | 1866-05-29 |
Family
ID=2124586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US55043D Expired - Lifetime US55043A (en) | Improvement in pruning-sh ears |
Country Status (1)
Country | Link |
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US (1) | US55043A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3203094A (en) * | 1963-01-17 | 1965-08-31 | Couture Pierre | Pruning appliance |
US5241752A (en) * | 1991-09-12 | 1993-09-07 | Fiskars Oy Ab | Pruning tool |
US20090119929A1 (en) * | 2007-11-08 | 2009-05-14 | Monnig Gary J | Tree timming apparatus |
-
0
- US US55043D patent/US55043A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3203094A (en) * | 1963-01-17 | 1965-08-31 | Couture Pierre | Pruning appliance |
US5241752A (en) * | 1991-09-12 | 1993-09-07 | Fiskars Oy Ab | Pruning tool |
US20090119929A1 (en) * | 2007-11-08 | 2009-05-14 | Monnig Gary J | Tree timming apparatus |
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