US232977A - Crucible and cupel tongs - Google Patents

Crucible and cupel tongs Download PDF

Info

Publication number
US232977A
US232977A US232977DA US232977A US 232977 A US232977 A US 232977A US 232977D A US232977D A US 232977DA US 232977 A US232977 A US 232977A
Authority
US
United States
Prior art keywords
tongs
crucible
cupel
rods
jaws
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
Application number
Publication date
Application granted granted Critical
Publication of US232977A publication Critical patent/US232977A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J45/00Devices for fastening or gripping kitchen utensils or crockery
    • A47J45/10Devices for gripping or lifting hot cooking utensils, e.g. pincers, separate pot handles, fabric or like pads

Definitions

  • My invention relates to certain improvements in tongs designed for laboratory use in lifting and holding crucibles, cupels, or any similar devices used in chemical or laboratory work; and the particular in'lprovcinents are in the peculiar form and arrangement of the parts by means of which the motions of the fingers and hand are transmitted from the handles to the grasping-jaws without any increased pressure beyond that exerted by the grasp of the hand, the parallel rods joining two extremities elfecting this result, as will be seen by reference to the accompanying drawings, in which- Figure l is a perspective viewot'my improved tongs, and Fig.
  • A is the handle for the fingers of the right hand, andB that for the thumb. At 0 C these handles are socketed into the rods D D, which, in turn, are fastened by the connecting links or hinges E E.
  • Thejaws G G are firmly attached to the ends of rods, as shown, or they may be cast all in one piece with the rods, and the jaws may be four-pronged, as shown, or as in Fig.2. In fact, I do not limit myself to any particular form of the jaws, but design to make them in any shape adapted to the class of work they are intended to perform.
  • the advantages of the invention are in the construction of the parallel rods and their hinged connecting-links, by means of which the pressure exerted at thejaws G G is identical with that atA B, and a nicety of pressure can be attained in lifting delicate cupels and like chemical apparatus which'would be impossible with aform of lever-tongs where the pressure is multiplied; and these tongs can be used in more confined spaces than would be possible with those pivoted and opening and closing from the center or a point approximating thereto.
  • anysnitable material may be used in making these tongs, though I prefer springsteel for thejaws and rods and brass for the connectinglinks and handles.
  • a crucible or cupel tongs having the handles A B and jaws G G connected by parallel revolving rods D D, operated in the manner and for the purposes set forth and described.

Description

(NoModeL) W. E. JUDSON.
Crucible and. Gupel Tongs.
No. 232,977. Patented Oct. 5, 1880.
W V I s ww fm enwq Unrren STATES PATENT Price.
WVILLIAM E. JUDSON, OF CLEVELAND, OHIO.
CRUCIBLE AND CUPEL TONGS.
SPECIFICATION forming part of Letters Patent No. 232,977, dated October 5, 1880. Application filed March 9, 1880. (No model.)
To all whom tt may concern:
Be it known that I, WILLIAM E. JUDsoN, of Cleveland, in the county of Guyahoga and State of Ohio, have invented a new and useful Improvement in Crucible and Gupel Tongs, and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
My invention relates to certain improvements in tongs designed for laboratory use in lifting and holding crucibles, cupels, or any similar devices used in chemical or laboratory work; and the particular in'lprovcinents are in the peculiar form and arrangement of the parts by means of which the motions of the fingers and hand are transmitted from the handles to the grasping-jaws without any increased pressure beyond that exerted by the grasp of the hand, the parallel rods joining two extremities elfecting this result, as will be seen by reference to the accompanying drawings, in which- Figure l is a perspective viewot'my improved tongs, and Fig. 3 a modified form of the grasping-jaws which I intend to use and form to adapt the tongs t0 difi'erently-shaped crucibles, cupels, or scorilicrs, 850., or to any other uses to which the tongs may be put.
In Fig. l, A is the handle for the fingers of the right hand, andB that for the thumb. At 0 C these handles are socketed into the rods D D, which, in turn, are fastened by the connecting links or hinges E E.
Thejaws G G are firmly attached to the ends of rods, as shown, or they may be cast all in one piece with the rods, and the jaws may be four-pronged, as shown, or as in Fig.2. In fact, I do not limit myself to any particular form of the jaws, but design to make them in any shape adapted to the class of work they are intended to perform.
The advantages of the invention are in the construction of the parallel rods and their hinged connecting-links, by means of which the pressure exerted at thejaws G G is identical with that atA B, and a nicety of pressure can be attained in lifting delicate cupels and like chemical apparatus which'would be impossible with aform of lever-tongs where the pressure is multiplied; and these tongs can be used in more confined spaces than would be possible with those pivoted and opening and closing from the center or a point approximating thereto.
Anysnitable material may be used in making these tongs, though I prefer springsteel for thejaws and rods and brass for the connectinglinks and handles.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. In tongs for laboratory or assaying uses, the parallel revolving rods D D, with sockets G U to receive the handles A B, respectively, substantially as described and shown.
2. A crucible or cupel tongs having the handles A B and jaws G G connected by parallel revolving rods D D, operated in the manner and for the purposes set forth and described.
3. The combination of the handles A B, hinges or links E E, rods D D, and jaws G G. operating as and for the purposes set forth and described.
4.. In tongs for laboratory or assaying uses, the jaws G G, constructed as described, and connected to the parallel revolving rods D D, substantially as described and shown.
This specification signed and witnessed this 11th day of February, 1880.
'WILLIAM E. JUDSON.
WVitnesses:
S. M. WoLoo'r'r, H. MoL. HARDING.
US232977D Crucible and cupel tongs Expired - Lifetime US232977A (en)

Publications (1)

Publication Number Publication Date
US232977A true US232977A (en) 1880-10-05

Family

ID=2302347

Family Applications (1)

Application Number Title Priority Date Filing Date
US232977D Expired - Lifetime US232977A (en) Crucible and cupel tongs

Country Status (1)

Country Link
US (1) US232977A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091491A (en) * 1958-04-07 1963-05-28 Benjamin H Adler Symbol changing device
US4088134A (en) * 1976-08-05 1978-05-09 Joseph A. Caprini Forceps
US5505689A (en) * 1991-05-29 1996-04-09 Origin Medsystems, Inc. Propertioneal mechanical retraction apparatus
US20070012243A1 (en) * 2005-07-13 2007-01-18 Olivia Webb Crucible or related object holder and method of manufacture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091491A (en) * 1958-04-07 1963-05-28 Benjamin H Adler Symbol changing device
US4088134A (en) * 1976-08-05 1978-05-09 Joseph A. Caprini Forceps
US5505689A (en) * 1991-05-29 1996-04-09 Origin Medsystems, Inc. Propertioneal mechanical retraction apparatus
US20070012243A1 (en) * 2005-07-13 2007-01-18 Olivia Webb Crucible or related object holder and method of manufacture
US7232489B2 (en) 2005-07-13 2007-06-19 Olivia Webb Crucible or related object holder and method of manufacture
US20070234948A1 (en) * 2005-07-13 2007-10-11 Olivia Webb Crucible or related object holder and method of manufacture

Similar Documents

Publication Publication Date Title
US232977A (en) Crucible and cupel tongs
US723356A (en) Nippers.
US869527A (en) Wrench.
US1005268A (en) Pliers.
US937959A (en) Pipe-wrench.
US1144738A (en) Pincers.
US679260A (en) Combination-tool.
US493440A (en) Artificial arm and hand
US656492A (en) Holder for asparagus, &c.
US803668A (en) Clamp.
US727279A (en) Logging or tie-handling tongs.
US187928A (en) Improvement in pipe-tongs
US945012A (en) Pliers and similar tool.
US714364A (en) Automatic grip-wrench.
US791917A (en) Combination-tool.
US190487A (en) Improvement in blacksmiths tongs
US335694A (en) Pliers
US516249A (en) Half to hamilton g
US188408A (en) Improvement in parallel pliers
US644825A (en) Wrench.
US226490A (en) Joseph w
US1101165A (en) Tool.
US1313399A (en) Plieks
US751594A (en) Plier-type tool
US563756A (en) Andrew error