US512451A - Scissors - Google Patents

Scissors Download PDF

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Publication number
US512451A
US512451A US512451DA US512451A US 512451 A US512451 A US 512451A US 512451D A US512451D A US 512451DA US 512451 A US512451 A US 512451A
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Prior art keywords
scissors
lug
blade
pivot
handle
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Expired - Lifetime
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D29/00Hand-held metal-shearing or metal-cutting devices
    • B23D29/02Hand-operated metal-shearing devices
    • B23D29/023Hand-operated metal-shearing devices for cutting wires

Definitions

  • FIG. 1 is a side elevation showing the scissors closed.
  • Fig. 2 is a similar view showing the scissors open.
  • Fig. 3 is a top or plan View of the cutting blades.
  • Fig. 4 is a side elevation of one of the cutting blades; and
  • Fig. 5 is a detail, being a side elevation of the forward end of the lever which operates the cutting blade shown in Fig. 4:.
  • My invention relates to scissors, and particularly to that class of scissorsin which the cutting blades are designed for cutting articles resting upon a table, such as for tailors use.
  • Such scissors or shears generally consist of a stationary blade and a movable blade operated by a disconnected lever.
  • the construction and operation have been such that the operator was unable to exert any lateral pressure on the movable cutting blade, and therefore in cutting heavy cloth the cutting blades would'be apt to spring apart and fail to cut.
  • the object of my invention is to improve scissors of this class, and to this end it consists in the specific features of construction and the combination or arrangement of parts hereinafter described and claimed.
  • 1 indicates the stationary blade, which is provided with a handle 2.
  • the blade 3 indicates the movable blade, which is pivotally connected near its rear end to the blade 1 by a pivot 4.
  • the blade 3 is provided on the inner side of its rear end with a recess 5 and with a pin 6 which projects into said recess, as shown in Fig. 3.
  • the lever 7 indicates a handle or lever, by means of which the movable blade 3 is operated.
  • the lever 7 is pivoted to the handle 2 or blade 1 by means of a pivot 8, as best seen in Flgs. 1 and 2.
  • the operation of the cutting blades 1 and 3 may be very accurately controlled, and the two blades are prevented from moving to a position at right angles to each other, which is objectionable in that the correct and easy working of the scissors is interfered with.
  • the slot 10 can be formed in the movable blade 3 and the pin 6 located on the handle 7, without departing from my invention.
  • the lug 12 indicates a lug formed on the movable blade 3 near its rear end, and on the side next to the lever 7.
  • the lug 12 is adapted to bear against th e lever 7 forward of the pivot 8, and by lateral pressure on the lever 7 it may be made to bear with more or less forceagainst the lug, thereby throwing the blades 1 and 3 closer together.
  • the lug 12 is on astraight line from the scissors point to the pivot 4, and when the blades are open this lug will be at its greatest distance from the pivot 8 of the handle 7, while the lug will be nearest the pivot when the blades are closed.
  • the arrangement of the slot 10 secures the greatest leverage when the blades IOC are nearly closed and the arrangement of the lug 12 materially facilitates the operation of cutting near the point of the scissors.

Description

(No Model.)
. 0. A. S HULTZ.
SGISSVORS. No. 512,451.
Patented Jan., 9. 1894.
4 UNITED STATES PATENT OFFICE.
CARL A. SHULTZ, OF KANSAS CITY, MISSOURL' SCISSORS.-
SPECIFICATION forming part of Letters Patent No. 512,451, dated January 9, 1894.
Application filed August 18 1892. Serial No. 443.460. (No model.)
To all whom it may-concern.-
Be it known that I, CARL A. SHULTZ, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Scissors, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 is a side elevation showing the scissors closed. Fig. 2 is a similar view showing the scissors open. Fig. 3 is a top or plan View of the cutting blades. Fig. 4 is a side elevation of one of the cutting blades; and Fig. 5 is a detail, beinga side elevation of the forward end of the lever which operates the cutting blade shown in Fig. 4:.
My invention relates to scissors, and particularly to that class of scissorsin which the cutting blades are designed for cutting articles resting upon a table, such as for tailors use. Such scissors or shears generally consist of a stationary blade and a movable blade operated by a disconnected lever. In scissors of this class as heretofore constructed,the construction and operation have been such that the operator was unable to exert any lateral pressure on the movable cutting blade, and therefore in cutting heavy cloth the cutting blades would'be apt to spring apart and fail to cut.
The object of my invention is to improve scissors of this class, and to this end it consists in the specific features of construction and the combination or arrangement of parts hereinafter described and claimed.
In the drawings, 1 indicates the stationary blade, which is provided with a handle 2.
3 indicates the movable blade, which is pivotally connected near its rear end to the blade 1 by a pivot 4. The blade 3 is provided on the inner side of its rear end with a recess 5 and with a pin 6 which projects into said recess, as shown in Fig. 3.
7 indicates a handle or lever, by means of which the movable blade 3 is operated. The lever 7 is pivoted to the handle 2 or blade 1 by means of a pivot 8, as best seen in Flgs. 1 and 2.
9 indicates a lug formed on the rear portion of the movable blade 3, in such position as to engage the head of the pivot 8 when the the plate 3. The slot 10 is located forward of the pivot 8 and back of the pivot l, as shown in the drawings. It is also so placed that as the scissors are operated it will cross a right line drawn between the axes of the two pivots 4 and 8, and when the slot is in line with the two pivots its greatest diameter will lie in the same line. By this arrangement, when the scissors are opened to their widest extent, the pin 6 will lie in the forward portion or the slot 10; when the scissors are half Way closed, the pin will lie at the rear portion of the slot; and when the scissors are entirely closed it will lie at the forward portion of said slot. By this arrangement the operation of the cutting blades 1 and 3 may be very accurately controlled, and the two blades are prevented from moving to a position at right angles to each other, which is objectionable in that the correct and easy working of the scissors is interfered with. It will be obvious that the slot 10 can be formed in the movable blade 3 and the pin 6 located on the handle 7, without departing from my invention.
12 indicates a lug formed on the movable blade 3 near its rear end, and on the side next to the lever 7. The lug 12 is adapted to bear against th e lever 7 forward of the pivot 8, and by lateral pressure on the lever 7 it may be made to bear with more or less forceagainst the lug, thereby throwing the blades 1 and 3 closer together. It will be noticed that the lug 12 is on astraight line from the scissors point to the pivot 4, and when the blades are open this lug will be at its greatest distance from the pivot 8 of the handle 7, while the lug will be nearest the pivot when the blades are closed. The arrangement of the slot 10 secures the greatest leverage when the blades IOC are nearly closed and the arrangement of the lug 12 materially facilitates the operation of cutting near the point of the scissors.
That which I claim as my invention, and desire to secure by Letters Patent, is
1. The combination with a stationary blade having a handle 2, and a pivoted handle 7 having a slot 10, of a pivoted blade 3 having a pin 6 and provided on its inner face with a lug 12 located in rear of the pin 6,so that when the blades are open the lug 12 is at the greatest distance from the handle-pivot and is nearest the latter when the blades are closed, substantially as and for the purpose specified.
2. The combination with a blade 1 having the handle 2, and a pivoted handle 7 having a slot 10, of a pivoted blade 3 havinga lug 12 and provided near said lug with a pin 6 which point or lug arranged to exert lateral pressure upon the movable blade and moving toward the pivot of the handle as the scissors close and away from said pivot as the scissors open, substantially as described.
CARL A. SHULTZ.
Witnesses:
THos. F. Evans, 0. R. FULTON.
US512451D Scissors Expired - Lifetime US512451A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105614A (en) * 1961-05-31 1963-10-01 William A Sherbondy Calking gun with trimming attachment
US3273238A (en) * 1964-12-10 1966-09-20 Kuhbier Carl Pliers having a camming lever member trapped between jaw members
US3308692A (en) * 1963-03-18 1967-03-14 Sato Shichiro Plier-type tool having cam and slot actuation means
US9446527B1 (en) * 2015-08-06 2016-09-20 Paul Brainard Pull-type cutters
US9656399B2 (en) 2015-08-06 2017-05-23 Paul Brainard Pull-type cutters

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105614A (en) * 1961-05-31 1963-10-01 William A Sherbondy Calking gun with trimming attachment
US3308692A (en) * 1963-03-18 1967-03-14 Sato Shichiro Plier-type tool having cam and slot actuation means
US3273238A (en) * 1964-12-10 1966-09-20 Kuhbier Carl Pliers having a camming lever member trapped between jaw members
US9446527B1 (en) * 2015-08-06 2016-09-20 Paul Brainard Pull-type cutters
US9656399B2 (en) 2015-08-06 2017-05-23 Paul Brainard Pull-type cutters
US20170217006A1 (en) * 2015-08-06 2017-08-03 Paul Brainard Pull-type cutters
US10730195B2 (en) 2015-08-06 2020-08-04 Paul Brainard Pull-type cutters

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