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Spring-dividers

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Publication number
US30009A
US30009A US30009DA US30009A US 30009 A US30009 A US 30009A US 30009D A US30009D A US 30009DA US 30009 A US30009 A US 30009A
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Prior art keywords
dividers
calipers
legs
screw
yoke
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/16Features common to compasses, dividers, and callipers
    • B43L9/20Pivots

Description

J. W]. STRANGE. DIVIDERS AND GALIPERS.-

Patent-ed Sept. 4 1860 uwrok:

UNITED STATES PATENT OFFICE.

JOSEPH W. STRANGE, OF BANGOR, MAINE.

SPRING-DIVIDERS.

Specification of Letters Patent No. 30,009, dated September 1 1, 1860.

T 0 all whom it may concern:

Be it known that I, JOSEPH WV. STRANGE, of Bangor, in the county of Penobscot and State of Maine, have invented new and useful Improvements in Dividers and Calipers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which Figure l is a perspective view of my dividers. Fig. 2 is a sectional view of the yoke used for dividers. Fig. 3 is a perspective view of my calipers, and Fig. 4 is a sectional View of the yoke used for calipers.

The nature of my invention consists in a peculiar arrangement and combination of the inclined plane and screw relatively to the other parts of the dividers and calipers, and each to the other, by which the legs of the dividers and calipers are relatively contracted or allowed to diverge.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

I construct the spring and legs of my calipers and dividers in any of the usual forms with the exception of one peculiarity hereinafter described; but instead of using the usual appliance for adjusting the degree of divergence of the legs, I use a sliding yoke Y, which is formed to slide upon the legs L, the legs passing through two orifices H in the yoke. This yoke is operated and adjusted by means of the screw rod S, which is formed with a male screw thread which works in the female screw formed at c in the yoke. The rod S is formed with a fixed collar C which bears against the inside of the bow of the dividers or calipers and serves to hold the rod in position. The top of the rod, which passes through the bow, is surmounted with a knob K, which is movable, and which if desired may be unscrewed and placed upon the lower end of the rod S.

The legs of dividers I form with an outward curve or angle-as shown in Fig. l for a twofold reason, first that the sliding of the yoke Y may move the legs to any de sired relative position, and, second, that in all their various degrees of divergence the legs may be more nearly parallel. The degree of divergencewhen shut-of that part of the legs of the dividers and calipers traversed by the yoke, being the measure of the influence of the screw in changing the position of the points.

F ig. a shows the form of the yoke which I use for calipers, it being made in that form in order that it may be readily applied to or detached from the calipers.

Among the advantages of my invention are its compactness, there being no projecting screw as in the usual form; it is perfectly balanced, the screw S being the exact center of weight and form, and the desired position of the points is never obscured by the projections usual upon dividers made in the common formwhile the same number of turns of the same screw will carry the legs through as great a space-as in those made in the usual form, and by changing the form of the legs the operation of the screw may be increased or diminished according as a greater or less degree of nicety of adjustment may be desired in the instrument.

I do not claim dividers or calipers as or dinarily constructed, nor do I claim any of their constituent parts as ordinarily constructed and arranged, but

What I do claim is-- The combination and arrangement of the sliding yoke Y and the screw S, when applied to calipers and dividers, substantially as and for the purposes.

J. WV. STRANGE.

Witnesses J. S. JENNnss, A. L. SIMPSON.

US30009A Spring-dividers Expired - Lifetime US30009A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815602A (en) * 1987-10-30 1989-03-28 W.R. Grace & Co. Vacuum skin package for closing two moisture impervious metallic sheets about a product
US4853287A (en) * 1987-10-19 1989-08-01 W. R. Grace & Co. Highly formable laminates
US4881359A (en) * 1987-10-30 1989-11-21 W. R. Grace & Co. Method for making a vacuum skin package
US4886690A (en) * 1987-12-21 1989-12-12 W. R. Grace & Co. Peelable barrier film for vacuum skin packages and the like
US4889731A (en) * 1988-02-12 1989-12-26 W. R. Grace & Co.-Conn. Package having peelable film
US4890739A (en) * 1987-12-21 1990-01-02 Mize Jr James Sealed internal package label
US4901505A (en) * 1988-02-12 1990-02-20 W. R. Grace & Co.-Conn. Method of making a package having peelable film
US4910033A (en) * 1988-05-13 1990-03-20 W. R. Grace & Co. Vacuum skin packages with reduced product discoloration
US5916613A (en) * 1994-06-30 1999-06-29 Cryovac, Inc. Barrier package for fresh meat products
US5979653A (en) * 1997-12-24 1999-11-09 Cryovac, Inc. Peel mechanism for peelable barrier film for vacuum skin packages and the like
US6042913A (en) * 1994-11-22 2000-03-28 Cyrovac, Inc. Vacuum skin package and composite film therefor
US6044622A (en) * 1999-01-11 2000-04-04 Cryovac, Inc. Method and apparatus for producing a package having a peelable film with a tab to facilitate peeling
WO2003020608A1 (en) 2001-08-31 2003-03-13 Cryovac, Inc. Microwaveable vacuum skin package
US20030152669A1 (en) * 2002-01-18 2003-08-14 Parimal Vadhar Self venting peelable microwaveable vacuum skin package
EP2095942A1 (en) 2006-05-17 2009-09-02 Curwood, Inc. Method that Promotes or Preserves the Desirable Color of Meat
US20110048998A1 (en) * 2009-08-28 2011-03-03 Marina Riccio Film suitable for vacuum skin packaging applications and easy-to-open vacuum skin package obtained therewith
DE202009018917U1 (en) 2008-05-20 2014-06-24 Cryovac, Inc. Vacuum skin package comprising a tray arranged on a product
DE202012013306U1 (en) 2012-10-19 2016-02-15 Cryovac, Inc. Vakuumskinverpackung

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4853287A (en) * 1987-10-19 1989-08-01 W. R. Grace & Co. Highly formable laminates
US4881359A (en) * 1987-10-30 1989-11-21 W. R. Grace & Co. Method for making a vacuum skin package
US4815602A (en) * 1987-10-30 1989-03-28 W.R. Grace & Co. Vacuum skin package for closing two moisture impervious metallic sheets about a product
US4890739A (en) * 1987-12-21 1990-01-02 Mize Jr James Sealed internal package label
US4886690A (en) * 1987-12-21 1989-12-12 W. R. Grace & Co. Peelable barrier film for vacuum skin packages and the like
US4901505A (en) * 1988-02-12 1990-02-20 W. R. Grace & Co.-Conn. Method of making a package having peelable film
US4889731A (en) * 1988-02-12 1989-12-26 W. R. Grace & Co.-Conn. Package having peelable film
US4910033A (en) * 1988-05-13 1990-03-20 W. R. Grace & Co. Vacuum skin packages with reduced product discoloration
US5916613A (en) * 1994-06-30 1999-06-29 Cryovac, Inc. Barrier package for fresh meat products
US6042913A (en) * 1994-11-22 2000-03-28 Cyrovac, Inc. Vacuum skin package and composite film therefor
US5979653A (en) * 1997-12-24 1999-11-09 Cryovac, Inc. Peel mechanism for peelable barrier film for vacuum skin packages and the like
US6044622A (en) * 1999-01-11 2000-04-04 Cryovac, Inc. Method and apparatus for producing a package having a peelable film with a tab to facilitate peeling
EP1020366A1 (en) 1999-01-11 2000-07-19 Cryovac, Inc. Method and apparatus for producing a package having a peelable film with a tab to facilitate peeling
WO2003020608A1 (en) 2001-08-31 2003-03-13 Cryovac, Inc. Microwaveable vacuum skin package
US20030152669A1 (en) * 2002-01-18 2003-08-14 Parimal Vadhar Self venting peelable microwaveable vacuum skin package
EP2095942A1 (en) 2006-05-17 2009-09-02 Curwood, Inc. Method that Promotes or Preserves the Desirable Color of Meat
DE202009018917U1 (en) 2008-05-20 2014-06-24 Cryovac, Inc. Vacuum skin package comprising a tray arranged on a product
US20110048998A1 (en) * 2009-08-28 2011-03-03 Marina Riccio Film suitable for vacuum skin packaging applications and easy-to-open vacuum skin package obtained therewith
DE202012013306U1 (en) 2012-10-19 2016-02-15 Cryovac, Inc. Vakuumskinverpackung

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