US1895156A - Laboratory clamp - Google Patents
Laboratory clamp Download PDFInfo
- Publication number
- US1895156A US1895156A US622836A US62283632A US1895156A US 1895156 A US1895156 A US 1895156A US 622836 A US622836 A US 622836A US 62283632 A US62283632 A US 62283632A US 1895156 A US1895156 A US 1895156A
- Authority
- US
- United States
- Prior art keywords
- jaws
- arm
- clamp
- condenser
- laboratory
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/50—Clamping means, tongs
Definitions
- j I r In the setting up and'use of laboratory apparatus, it is often desirable to move a piece of apparatus, such as a condenser, held in a condenser clamp, laterally of the clamp handle without shifting the position of the entire clamp on its support, e. g. a ring stand, for instance to position the article concentrically of another piece of apparatus.
- the laboratory condenser clamps previously available have been provided with a stationary and a movable jaw, so that such adjustment of the condenser has not been possible, and this construction has rendered diflicult the concentric supporting of apparatus of different diameters.
- Fig. 1 being a perspective view
- Fig. 2 an enlarged side view showing the jaws gripping a condenser of the Liebig type.
- the clamp shown comprises a rigid extension arm 1 adapted to be supported in fixed position by a clamp holder of conventional form, not shown, adjustably positioned on a ring stand or similar support in the usual manner. If desired the arm may be provided with means for connecting it directly to ring stands, and the like, as will be understood by those skilled in the art.
- One end of arm 1 is provided with a bifurcated bracket 2 comprising legs 3 connected at the sides by integral webs 4.
- arm 1 is tubular, and
- Bracket 2 carries a pair of jaws 7 and 8 movable independently toward and from: each other. These jaws are of customary form, and are provided respectively with one and two curved gripping fingers 7a and 811, over which lengths 9 of rubber tubing are slid. The jaws are carried on a pivot pin 10 mounted in webs 1, and extending through flanges 10a formed at the inner ends ofthe jaws.
- this takes the form of thumb screws 14' which move in threaded apertures" formed in the outer ends of bracket legs Spring 11 through its ends 12 continuously presses the arms against the inner ends of: screws 14, which thus bear against the outer facesjo'f the jaws.
- both jaws are pivoted idtheibrztcket, the jaws are 1 movable both relative-to each other and to "the arm- This constitutes 'an im-' portant advance over-prior rcl'amps of this that asthe ends or type, in whic'h one jaw is stationary, so'thatl the axia'l position of a condenser or other object held in the clamp cannot be'shifted mere adjustment of themovable'jaw the clamp provided by this invention either may be adjustedfindependently of the other by turning. the appropriate thumb screw 'in' position.
- either or both jaws may be moved to vary the jaw opening to accommodate objects of various sizes and shapes.
- a laboratory utility clamp comprising an arm, a pair of opposed jaws pivotally connected' to one'end of said arm, and means acting upon each of said jaws for selectively adjusting the position of each of said jaws relative to the other and to said arm.
- a laboratory utility clamp comprising an arm, a pair of opposed article-gripping jaws pivotally connected to one end of said arm for independent movement, a spring disposed between the jaws to urge them apart, and a pair of adjusting screws connected to said arm and acting one on each of said jaws V for independentl moving the jaws with respect to -one anot er and to saidiarm.
- a laboratory utility clamp comprising a rigid arm, a bifurcated bracket connected to :one end of said arm, a pair of articlegripping jaws pivotally connectedat one end zbetween the legs of said bracket for independent movement, a spring disposed, be-' tween said jaws to constantly urge them apart, and a thumb screw disposed in each legof said bracket with its inner end bearing against the outer face of the adjacent jaw bracket legs and connected to one end of said arm, a pair of article-grippingjaws pivotally connected at one end between the legs of said bracket, a spring disposed between said-jaws adjacent their pivoted ends constantly urging the jaws apart,'and"a thumb screw disposed in each'leg of said bracket with its inner end bearing againstthe outer face of the adjacentjaw, whereby the aws each other and the arm and; the central axis of the jawopening is adjustable'laterally of the longitudinal axis of the arm between the outermost positions of the jaws.
Description
Jan. 24 1933. s E I 1,895,156
LABORATORY CLAMP Filed July 16, 1932 WITHESSSS INVENTOR W 9 y t MF-M'Zo .2 c.9464. I 551M, wwwzd Patented Jan. 24, 1933 UN T PATENT" omen:
- E DwIN FISHER, or PITTSBURGH, rjENNsYLvANiA, AssIGNoR TO FISHER SCIENTIFIC COMPANY, or PITTSBURGH, PENNSYLVANIA, A conroRA'rIoN or PENNSYLVANIA LAiaoBA'roRx C AMP a lication filed as 16, 1932. sem No. 622,836.
This invention relates to laboratory clamps for supporting =condensersand other cylindricalobjects, as well as articles of irregular shape. j I r In the setting up and'use of laboratory apparatus, it is often desirable to move a piece of apparatus, such as a condenser, held in a condenser clamp, laterally of the clamp handle without shifting the position of the entire clamp on its support, e. g. a ring stand, for instance to position the article concentrically of another piece of apparatus. However, the laboratory condenser clamps previously available have been provided with a stationary and a movable jaw, so that such adjustment of the condenser has not been possible, and this construction has rendered diflicult the concentric supporting of apparatus of different diameters.
It is among the objects of this invention to provide a laboratory clamp having jaws which are independently adjustable toward and away from each other and are capable of supporting a condenser, or the like, at selective points between the extreme outer positions of the jaws without changing the position of the clamp with respect to. its support, whichis positive in operation, easily and quickly adjustable, simple in construction, strong, durable, and of general utility for supporting a wide variety of apparatus varying both in size and shape.
The preferred embodiment of the invention is shown in the accompanying drawing as applied to an extension type clamp, Fig. 1 being a perspective view, and Fig. 2 an enlarged side view showing the jaws gripping a condenser of the Liebig type.
The clamp shown comprises a rigid extension arm 1 adapted to be supported in fixed position by a clamp holder of conventional form, not shown, adjustably positioned on a ring stand or similar support in the usual manner. If desired the arm may be provided with means for connecting it directly to ring stands, and the like, as will be understood by those skilled in the art. One end of arm 1 is provided with a bifurcated bracket 2 comprising legs 3 connected at the sides by integral webs 4. Preferably arm 1 is tubular, and
the bracket is connected thereto by a stud 5, Fig. 2, integral with arms 3, which extend in \jl-fashion therefrom. As shown in 'Figif2, stud 5 is inserted into one end of the arm an is held infixed position by a pin 6. Bracket 2 carries a pair of jaws 7 and 8 movable independently toward and from: each other. These jaws are of customary form, and are provided respectively with one and two curved gripping fingers 7a and 811, over which lengths 9 of rubber tubing are slid. The jaws are carried on a pivot pin 10 mounted in webs 1, and extending through flanges 10a formed at the inner ends ofthe jaws. In order to permit the jaws to move independently, the flanges of one jawfit within those of the other jaw, as shown in the drawing. As seen in the drawing, finger b is positioned between finger 8a, whereby slight pressure suflices to grip articles tight ly, because'the pressure of the single finger is exerted between, not opposite, the double fingers." l The jaws are constantly urged apart by aspring acting therebetween, for example by a spring '11 coiledaround pivot pin 10 with its projecting ends 12 hearing in recesses 13 formed at the inner'ends of the aws. "Meansf are provided also for adjusting the position of the jaws'to vary their opening and to hold them iii selected position. In the embodi ment shown this takes the form of thumb screws 14' which move in threaded apertures" formed in the outer ends of bracket legs Spring 11 through its ends 12 continuously presses the arms against the inner ends of: screws 14, which thus bear against the outer facesjo'f the jaws.
It'isimportant to note both jaws are pivoted idtheibrztcket, the jaws are 1 movable both relative-to each other and to "the arm- This constitutes 'an im-' portant advance over-prior rcl'amps of this that asthe ends or type, in whic'h one jaw is stationary, so'thatl the axia'l position of a condenser or other object held in the clamp cannot be'shifted mere adjustment of themovable'jaw the clamp provided by this invention either may be adjustedfindependently of the other by turning. the appropriate thumb screw 'in' position.
orout. Thus either orboth jaws may be moved to vary the jaw opening to accommodate objects of various sizes and shapes. But
arm to the desired position, and then adjusting the other arm by means of its thumb screw. Thereby articles of different diameter may-be concentrically supported. This may be seen from Fig. 2, in which a Liebig condenser 15 is held with jaw 8 in its outermost The condenser may be moved j are independently ad ustable with respect to axially to any desired position between that shownin full lines and one corresponding to the outermost position of arm 7 by retracting-the screwacting on arm 7 to permit spring 11 to move the jaw 5 to thedotted its screw to clamp line position, arm 7 being then broughtup by the condenser. Accordingly it will be seen that withthe clamp held in. fixed position its jaw opening may be ad'- j-usted toshift the axial position of the condenser as need be between the outer positions of eitherjaw. This provides for a relatively widerange of shifting the condenser position laterally of the supporting arms, so that such adjustments may be made more easilythan has been the case with prior clamps.
According to the provisions of the patent statutes, I have explained the principle and construction of my invention, and haveillustrated and described what I now conslder to represent its best embodiment. How
ever, I desire to have it understood that,
- within the scope of the appended claims, the
invention may be practiced otherwise than as specifically illustrated and described.
Iclaim: f 1. A laboratory utility clamp. comprising an arm, a pair of opposed jaws pivotally connected' to one'end of said arm, and means acting upon each of said jaws for selectively adjusting the position of each of said jaws relative to the other and to said arm.
2. A laboratory utility clamp comprising an arm, a pair of opposed article-gripping jaws pivotally connected to one end of said arm for independent movement, a spring disposed between the jaws to urge them apart, and a pair of adjusting screws connected to said arm and acting one on each of said jaws V for independentl moving the jaws with respect to -one anot er and to saidiarm.
3. A laboratory utility clamp comprising a rigid arm, a bifurcated bracket connected to :one end of said arm, a pair of articlegripping jaws pivotally connectedat one end zbetween the legs of said bracket for independent movement, a spring disposed, be-' tween said jaws to constantly urge them apart, and a thumb screw disposed in each legof said bracket with its inner end bearing against the outer face of the adjacent jaw bracket legs and connected to one end of said arm, a pair of article-grippingjaws pivotally connected at one end between the legs of said bracket, a spring disposed between said-jaws adjacent their pivoted ends constantly urging the jaws apart,'and"a thumb screw disposed in each'leg of said bracket with its inner end bearing againstthe outer face of the adjacentjaw, whereby the aws each other and the arm and; the central axis of the jawopening is adjustable'laterally of the longitudinal axis of the arm between the outermost positions of the jaws. g In testimony whereof, I sign my, name. I EDWIN. H. EISHER
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US622836A US1895156A (en) | 1932-07-16 | 1932-07-16 | Laboratory clamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US622836A US1895156A (en) | 1932-07-16 | 1932-07-16 | Laboratory clamp |
Publications (1)
Publication Number | Publication Date |
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US1895156A true US1895156A (en) | 1933-01-24 |
Family
ID=24495688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US622836A Expired - Lifetime US1895156A (en) | 1932-07-16 | 1932-07-16 | Laboratory clamp |
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Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2499945A (en) * | 1946-07-03 | 1950-03-07 | Burrell Technical Supply Compa | Burette holder |
US2695149A (en) * | 1952-02-07 | 1954-11-23 | Edward J Chabot | Antenna mounting bracket |
US2731696A (en) * | 1951-06-07 | 1956-01-24 | Griffin & George Ltd | Adjustable clamps |
US3032849A (en) * | 1959-06-26 | 1962-05-08 | Metal Textile Corp | Knitted mesh cushion or pad for laboratory clamps and method of making |
US3929309A (en) * | 1974-08-26 | 1975-12-30 | Pierce Louis B | Head rest |
US3969080A (en) * | 1974-08-20 | 1976-07-13 | Conlon Daniel R | Stabilizing means for laboratory ware |
US4059869A (en) * | 1974-09-27 | 1977-11-29 | Mathias Dunstheimer | Animal holder |
US4579306A (en) * | 1984-08-02 | 1986-04-01 | Kellett K Craige | Transmission wire clamp |
US4783037A (en) * | 1987-08-10 | 1988-11-08 | Prince Corporation | Container holder for a vehicle |
US5334354A (en) * | 1992-09-11 | 1994-08-02 | Troemner, Inc. | Laboratory clamp having a fully enclosed hinge mechanism |
GB2338261B (en) * | 1998-06-08 | 2002-11-06 | Maximillian Edward Burgess | Clamping device |
US20120056049A1 (en) * | 2010-09-07 | 2012-03-08 | Aguirrezabal Inigo Gisbert | Clamp Device |
US20140230220A1 (en) * | 2013-02-20 | 2014-08-21 | Typical 4 LLC | Trophy mount and skull clamp |
US20160207057A1 (en) * | 2015-01-16 | 2016-07-21 | Thomas Francis Hursen | Supersonic air knife handle |
US9511334B2 (en) * | 2013-08-29 | 2016-12-06 | Burrell Scientific LLC | Clamp for a fluid container and method of use thereof |
US10228002B2 (en) * | 2016-09-09 | 2019-03-12 | Robert Douglas Fletcher | Clamp system |
US20190344727A1 (en) * | 2018-05-08 | 2019-11-14 | Polaris Industries Inc. | Fin Grip With Independently Adjustable Arms |
USD870548S1 (en) * | 2018-07-23 | 2019-12-24 | Peggy Modracek | Clamping device |
US20220167590A1 (en) * | 2018-02-02 | 2022-06-02 | Gayle Peacock Gallagher | Animal Safety Constraint System |
US20220228706A1 (en) * | 2021-01-20 | 2022-07-21 | Nicholas Kiser | Mounting Apparatus |
-
1932
- 1932-07-16 US US622836A patent/US1895156A/en not_active Expired - Lifetime
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2499945A (en) * | 1946-07-03 | 1950-03-07 | Burrell Technical Supply Compa | Burette holder |
US2731696A (en) * | 1951-06-07 | 1956-01-24 | Griffin & George Ltd | Adjustable clamps |
US2695149A (en) * | 1952-02-07 | 1954-11-23 | Edward J Chabot | Antenna mounting bracket |
US3032849A (en) * | 1959-06-26 | 1962-05-08 | Metal Textile Corp | Knitted mesh cushion or pad for laboratory clamps and method of making |
US3969080A (en) * | 1974-08-20 | 1976-07-13 | Conlon Daniel R | Stabilizing means for laboratory ware |
US3929309A (en) * | 1974-08-26 | 1975-12-30 | Pierce Louis B | Head rest |
US4059869A (en) * | 1974-09-27 | 1977-11-29 | Mathias Dunstheimer | Animal holder |
US4579306A (en) * | 1984-08-02 | 1986-04-01 | Kellett K Craige | Transmission wire clamp |
US4783037A (en) * | 1987-08-10 | 1988-11-08 | Prince Corporation | Container holder for a vehicle |
US5334354A (en) * | 1992-09-11 | 1994-08-02 | Troemner, Inc. | Laboratory clamp having a fully enclosed hinge mechanism |
GB2338261B (en) * | 1998-06-08 | 2002-11-06 | Maximillian Edward Burgess | Clamping device |
US20120056049A1 (en) * | 2010-09-07 | 2012-03-08 | Aguirrezabal Inigo Gisbert | Clamp Device |
US8403282B2 (en) * | 2010-09-07 | 2013-03-26 | Tien Hsin Industries Co., Ltd. | Clamp device |
US9610798B2 (en) * | 2013-02-20 | 2017-04-04 | Typical 4, LLC | Trophy mount and skull clamp |
US20140230220A1 (en) * | 2013-02-20 | 2014-08-21 | Typical 4 LLC | Trophy mount and skull clamp |
US10378691B2 (en) * | 2013-02-20 | 2019-08-13 | Typical 4, LLC | Trophy mount and skull clamp |
US9511334B2 (en) * | 2013-08-29 | 2016-12-06 | Burrell Scientific LLC | Clamp for a fluid container and method of use thereof |
US9855573B2 (en) * | 2015-01-16 | 2018-01-02 | Thomas Francis Hursen | Supersonic air knife handle |
US20160207057A1 (en) * | 2015-01-16 | 2016-07-21 | Thomas Francis Hursen | Supersonic air knife handle |
US10603780B2 (en) | 2015-01-16 | 2020-03-31 | Thomas Francis Hursen | Adjustable handle assembly |
US10662988B2 (en) * | 2016-09-09 | 2020-05-26 | Robert Donald Fletcher | Clamp system |
US10228002B2 (en) * | 2016-09-09 | 2019-03-12 | Robert Douglas Fletcher | Clamp system |
US20190154066A1 (en) * | 2016-09-09 | 2019-05-23 | Robert Donald Fletcher | Clamp System |
US20220167590A1 (en) * | 2018-02-02 | 2022-06-02 | Gayle Peacock Gallagher | Animal Safety Constraint System |
US11091102B2 (en) * | 2018-05-08 | 2021-08-17 | Polaris Industries Inc. | Fin grip with independently adjustable arms |
US11091103B2 (en) | 2018-05-08 | 2021-08-17 | Polaris Industries, Inc. | Utility grip for use with utility vehicle |
US20190344727A1 (en) * | 2018-05-08 | 2019-11-14 | Polaris Industries Inc. | Fin Grip With Independently Adjustable Arms |
US11608011B2 (en) | 2018-05-08 | 2023-03-21 | Polaris Industries Inc. | Fin grip with independently adjustable arms |
US11878634B2 (en) | 2018-05-08 | 2024-01-23 | Polaris Industries Inc. | Fin grip with independently adjustable arms |
USD870548S1 (en) * | 2018-07-23 | 2019-12-24 | Peggy Modracek | Clamping device |
US20220228706A1 (en) * | 2021-01-20 | 2022-07-21 | Nicholas Kiser | Mounting Apparatus |
US11441728B2 (en) * | 2021-01-20 | 2022-09-13 | Nicholas Kiser | Mounting apparatus |
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