US21657A - Improvement in knives to cut paper bags - Google Patents
Improvement in knives to cut paper bags Download PDFInfo
- Publication number
- US21657A US21657A US21657DA US21657A US 21657 A US21657 A US 21657A US 21657D A US21657D A US 21657DA US 21657 A US21657 A US 21657A
- Authority
- US
- United States
- Prior art keywords
- knives
- knife
- improvement
- cut
- cut paper
- 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
- 210000001138 Tears Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/16—Cam means
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8828—Plural tools with same drive means
- Y10T83/8831—Plural distinct cutting edges on same support
- Y10T83/8834—Successively acting
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9447—Shear type
Definitions
- FIG. l is a front elevation of my improved' knife and part of the press used fo'r actuatingI the same.
- Fig. 2 is an inverted plan of saidv knife.
- Fig. Sis a plan of the'slot into-which the knife passes, ⁇ and Fig. -l is a vertical seotion ofthe knifeandf its bed.
- My said'invention is intended for ⁇ the purpose of cutting out paper bags, although applicable to other characters of work, especially where the cutis not a perfect straight line or where the same has to be done with great dispatch and asmall expenditure of power.
- Fig. 5 shape of the paper as required to be cut out -for making paper bags is shown in Fig. 5, in which anl o'set at an angle of about forty-tive degrees is Ina-dc, to provide -for turning one edge over onto the other and pasting.
- This shape is cut out of sheets, each adapted to makingone bag; or the knife can be adapted to'form a double cut near the center ot' the sheet united by a short diagonal cut, so as to form two bags ont of one sheet.
- the knife a is attached to a suitable head-block or follower, b, that is fitted to slide up and down in a competent press, c, and is actuated by a lever. acting on ⁇ the toggle-joint d, or equivalent means.
- e is the bed of the press, in which is an opening, and on the surface of said bedthere is a slotted plate, f, adjustable bycountersunk screws or otherwise, to correspond ⁇ with the knife a, so thatsaid knife, when the platen b is brought down, shall pass into said slot.
- the knife itself is formed of thin steel, l'of the shape required for the cut, and composed of a single piece or separate chiselshaped knives attached to the follower b by screws, and the edges of said knives are formed with nearly semicircular serrations, as seen in Fig.-
- each alternate serration is longer than the intermediate one, so that as the knife is brought down the long seri-ations pierce and cut first into the paper,
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Description
UNITED STATES y PATENT OFFICE.
HENRY R. DAVID, oF( NEW YORK, N. Y`
IMPROVEMENT'IN KNIVES TO CUT PAPERA BAGS, 80C.
lSpecification forming part of Letters Patent No. 21,657, dated October 5, 1858.
- ence being had to the accompanying drawings,
making part of this specification, wherein- Figure l is a front elevation of my improved' knife and part of the press used fo'r actuatingI the same. Fig. 2 is an inverted plan of saidv knife. Fig. Sis a plan of the'slot into-which the knife passes,` and Fig. -l is a vertical seotion ofthe knifeandf its bed.
n, Similar marks of reference denotethe sameparts.- 1
My said'invention is intended for `the purpose of cutting out paper bags, although applicable to other characters of work, especially where the cutis not a perfect straight line or where the same has to be done with great dispatch and asmall expenditure of power. The
,shape of the paper as required to be cut out -for making paper bags is shown in Fig. 5, in which anl o'set at an angle of about forty-tive degrees is Ina-dc, to provide -for turning one edge over onto the other and pasting. This shape is cut out of sheets, each adapted to makingone bag; or the knife can be adapted to'form a double cut near the center ot' the sheet united by a short diagonal cut, so as to form two bags ont of one sheet. The knife a is attached to a suitable head-block or follower, b, that is fitted to slide up and down in a competent press, c, and is actuated by a lever. acting on` the toggle-joint d, or equivalent means. eis the bed of the press, in which is an opening, and on the surface of said bedthere is a slotted plate, f, adjustable bycountersunk screws or otherwise, to correspond `with the knife a, so thatsaid knife, when the platen b is brought down, shall pass into said slot. The knife itself is formed of thin steel, l'of the shape required for the cut, and composed of a single piece or separate chiselshaped knives attached to the follower b by screws, and the edges of said knives are formed with nearly semicircular serrations, as seen in Fig.-
1, and properly sharpened; and each alternate serration is longer than the intermediate one, so that as the knife is brought down the long seri-ations pierce and cut first into the paper,
and then the shorter 'serrations operate, cutting the remaining parts thereof. I am thus enabled to obtain a piercing and shearing cut by a vertically-moving knife,` that makes a Iclean cut at --one operation and with little powerjthrough a quire or more of paper, and that without said paper being previously cornpressed, whereas 'if a continuous straightedged k'nife were used it would not cut the paper',- but tear the same and wedge it down into the slot, and require far more power and a sharper instrument than when said knife is formed in the manner set forth.
I do not claima serratededgcd knife in itself. as the same has been used with a reciprocating motion for cutting the edges of books, &c. Neither do I claim a serrated shear or blade for cutting paper, as this has before been used; but i W'hat Iclaim as my invention, and desire to secure by Letters Patent, is-
1. The serrated knife a,.having a vertical movement, in combination with the narrow` slot in the bed-plate f, for sustaining the paper While several thicknesses are being cut for bags HENRY R. DAVID. Witnesses:
LEMUEL W. SERRELL, JAMES S. Dinox.
Publications (1)
Publication Number | Publication Date |
---|---|
US21657A true US21657A (en) | 1858-10-05 |
Family
ID=2087580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US21657D Expired - Lifetime US21657A (en) | Improvement in knives to cut paper bags |
Country Status (1)
Country | Link |
---|---|
US (1) | US21657A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2781843A (en) * | 1952-07-16 | 1957-02-19 | Diamond Match Co | Apparatus for perforating hollow articles |
US2873801A (en) * | 1955-08-08 | 1959-02-17 | Thomas A E Grierson | Portable sheet cutting machine |
US4426029A (en) | 1981-12-30 | 1984-01-17 | Union Carbide Corporation | Safety blade for severing stretchable film |
US4458570A (en) * | 1982-01-25 | 1984-07-10 | Marvin Glass & Associates | Sheet material dispenser |
US20090302085A1 (en) * | 2008-05-15 | 2009-12-10 | Pregis Innovative Packaging, Inc. | Automated air pillow dispenser |
-
0
- US US21657D patent/US21657A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2781843A (en) * | 1952-07-16 | 1957-02-19 | Diamond Match Co | Apparatus for perforating hollow articles |
US2873801A (en) * | 1955-08-08 | 1959-02-17 | Thomas A E Grierson | Portable sheet cutting machine |
US4426029A (en) | 1981-12-30 | 1984-01-17 | Union Carbide Corporation | Safety blade for severing stretchable film |
US4458570A (en) * | 1982-01-25 | 1984-07-10 | Marvin Glass & Associates | Sheet material dispenser |
US20090302085A1 (en) * | 2008-05-15 | 2009-12-10 | Pregis Innovative Packaging, Inc. | Automated air pillow dispenser |
US8567653B2 (en) * | 2008-05-15 | 2013-10-29 | Pregis Innovative Packaging, Inc. | Automated air pillow dispenser |
US9434086B2 (en) | 2008-05-15 | 2016-09-06 | Pregis Innovative Packaging Llc | Automated air pillow dispenser |
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