US109662A - William edgar prall - Google Patents
William edgar prall Download PDFInfo
- Publication number
- US109662A US109662A US109662DA US109662A US 109662 A US109662 A US 109662A US 109662D A US109662D A US 109662DA US 109662 A US109662 A US 109662A
- Authority
- US
- United States
- Prior art keywords
- prall
- leg
- wheel
- hand
- william edgar
- 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
- 239000000463 material Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
- B26F1/36—Punching or perforating pliers
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- 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
- Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]
- Y10T83/8785—Through return [noncutting] stroke
- Y10T83/8786—Oscillating tool
-
- 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
- Y10T83/8798—With simple oscillating motion only
- Y10T83/8804—Tool driver movable relative to tool support
- Y10T83/8805—Cam or eccentric revolving about fixed axis
Definitions
- This invention consists in a scissor-like cutting device combined with the ordinary sewing-machine, and
- Figure 1 represents a side view of our scissor-attachment, showing it applied tothe table of an ordivnarysewing-niacinne, having the hand-wheel above the table.
- a spring, I which engages a pin or projection, J, on the leg E, and thereby causes .tiieleg E and its roller G to press against the peripheryfithe hand-wheel A.
- the hand-wheel of the machine is set in motion the cutting edges of the scissors are rapidly opened and closed, and the operator needs but to draw the material along between the scissor-blades whereby the material is cut in a very rapid manner.
- the hinged hook K or any similar device, by means of which the movable leg E can be held off the wheel A and prevented from operating whenever desired.
- the scissors By means of a cap secured to the leg D, or to the table, the scissors may be covered and the material kept from contact with the scissors.
- the movablc leg E When the attachment is used with or applied to sewing-machines not provided with the hand-wheel A, or having said hand-wheel located in a position not convenient for attaching the scissors,-the movablc leg E may obtain its motion from any desirable part of the machine having a rotary or vibrating motion, and the said leg is consequently furnished with the required connection to obtain its motion.
- the cutting-attachment constructed as herein shown and described, when combined with and operated from the rotatingwheclor shaft of the ma-.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
. W. E. PRALL & .B. RAND. CLOTH CUTTING ATTACHMEN R SEWING MACHINES.
No. 109,662. Patented Nov. 29, 1870.
area .%t1te5 an cam.
WILLIAM EDGAR PRALL, 011 WASHINGTON, DISTRICT OF COLUMBIA, AND ALDEN B. RAND, OF STATEN'ISLAND, NEW YORK.
Letters Patent, No. 109,662, dated November 29, 18 70.
IMPROVEMENT IN CLOTQ'LQUTTING ATTACHMENTS FOR SEWING-MACHINES.
The Schedule referred to iriipqsnbetters Patent and making part of the name.
We WILLIAM EDGAR PRALL, of the city of Wash ing-Machincs, of whichthe following is. a speeiiicm.
tlon.
This invention consists in a scissor-like cutting device combined with the ordinary sewing-machine, and
operated as herein described, so that the operator can cut as well as sew cloth or othermatcrial.
In the annexed drawing, making a part of this specification,
Figure 1 represents a side view of our scissor-attachment, showing it applied tothe table of an ordivnarysewing-niacinne, having the hand-wheel above the table.
.by its rotation when brought in contact with the.
hand-wheel, the required vibrating motion to the leg E to cut the material.
To the leg D is attached a spring, I, which engages a pin or projection, J, on the leg E, and thereby causes .tiieleg E and its roller G to press against the peripheryfithe hand-wheel A.
loch the hand-wheel of the machine is set in motion the cutting edges of the scissors are rapidly opened and closed, and the operator needs but to draw the material along between the scissor-blades whereby the material is cut in a very rapid manner.
In order to disengage the scissors we employ the hinged hook K, or any similar device, by means of which the movable leg E can be held off the wheel A and prevented from operating whenever desired.
By means of a cap secured to the leg D, or to the table, the scissors may be covered and the material kept from contact with the scissors.
When the attachment is used with or applied to sewing-machines not provided with the hand-wheel A, or having said hand-wheel located in a position not convenient for attaching the scissors,-the movablc leg E may obtain its motion from any desirable part of the machine having a rotary or vibrating motion, and the said leg is consequently furnished with the required connection to obtain its motion.
Having fully described our invention,
What we desireto claim, and secure therein by Letters Patent, is-
The cutting-attachment, constructed as herein shown and described, when combined with and operated from the rotatingwheclor shaft of the ma-.
chine.
W. E; PRALL. Witnesses: ALDEN B. RAND.
R. BOEKLEN, A31. RAND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US109662A true US109662A (en) | 1870-11-29 |
Family
ID=2179135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US109662D Expired - Lifetime US109662A (en) | William edgar prall |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US109662A (en) |
-
0
- US US109662D patent/US109662A/en not_active Expired - Lifetime
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