US1250383A - Attachment for test-tube dividers. - Google Patents

Attachment for test-tube dividers. Download PDF

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Publication number
US1250383A
US1250383A US14953417A US14953417A US1250383A US 1250383 A US1250383 A US 1250383A US 14953417 A US14953417 A US 14953417A US 14953417 A US14953417 A US 14953417A US 1250383 A US1250383 A US 1250383A
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Prior art keywords
dividers
leg
terminal
test
attachment
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Expired - Lifetime
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US14953417A
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Bernard E Taylor
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Individual
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Priority to US14953417A priority Critical patent/US1250383A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/545—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces
    • B23Q1/5462—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces with one supplementary sliding pair
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/16—Compasses, i.e. with a pair of pivoted arms

Definitions

  • the present invention appertains to dividers used in connection with test tubes for determining the percentage of butter fat in cream, and it is the object of the invention to provide means for use with dividers of that character to facilitate the manipulation thereof, it being ordinarily a difficult and troublesome matter to properly hold the points of the dividers in place against the cylindrical surface of the test tube, due to the points slipping to one side or the other.
  • the object of the invention is to provide a device either attached to or forming a part of the divider and serving the oilice of holding one point in proper position while the other point is adjusted to its position.
  • Figure l is a side elevation of the dividers illustrating the present device applied thereto.
  • Fig. 2 is an enlarged section taken on the line 2--2 of Fig. 1.
  • Fig. 3 is an enlarged sectional detail taken on the line 3-3 of Fig. 2.
  • the dividers illustrated embodies the legs 1 and 2 having their butt ends jointed or pivoted together as usual, and provided with the pointed terminals 3 and 4.
  • the member 5 is detachably and adjustably assembled with the leg 2, the butt end of the member 5 having a clamp 7 to embrace the leg and the ends of the clamp are connected by a screw 8 whereby the clamp can be contracted to tightly embrace the leg of the dividers to hold the device in place. hen the screw 8 is loosened, the device can be adjusted or removed.
  • the member 5 can be attached to the dividers in any other suitable manner, however, and may constitute an integral part of the dividers preferred.
  • the terminal 6 is so arranged, that when the point of the leg 2 is placed against the side of the test tube T, the terminal 6 is adapted to bear against the test tube, as seen in Figs. 1 and 2, whereby to prevent the leg 2 from slipping toward the opposite side, pressure being applied to said leg 2 to hold the terminal 6 against the test tube, thereby holding the pointed end of the leg 2 in place while the leg 1 is swung to bring its point to the desired point of the test tube. It is thus an easy matter to hold the point of the leg 2 in the desired position while the other point of the dividers is adjusted, by applying a slight pressure to the leg 2 it is prevented from slipping, the pressure applied to the leg 2 being away from the observer in Figs. 1 and 2.
  • the leg 2 By disposing the leg 2 the lowermost, the lower point can be held in place while the upper point is being positioned, and without danger of burning or scalding the fingers, which sometimes occurs in the use of ordinary dividers.
  • the terminal 6 is located at one side of the dividers, so that the opposite side thereof can be placed on the paper or chart without the interference of the terminal 6.
  • a tube divider having a pair of legs. a member carried by one leg having a terminal offset to one side of the dividers and projecting beyond the point of said leg to bear against a test tube at one side to preoint from slipping toward the.
  • Test tube dividers having a pair of In testimony that I claim the foregoing legs, and a clamp fitted adjustably on one as my own, I have hereto afiiXed my signaleg and having a terminal extending beyond ture in the presence of two witnesseses.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Description

B. E. TAYLOR.
ATTACHMENT FOR TEST TUBE DIVIDERS.
APPLICATION man FEB. 19. 1917.
1,250,383. Patented. Dec. 1 8, 1917;;
Q viheoo 7' I I r (y .5 m J39):
BERNARD E. TAYLOR, or HOLYOKE, corona-no.
ATTACHMENT FOR TEST-TUBE DIVIDERS.
Application filed February 19,1917. Serial No. 149,534.
To all whom it may concern Be it known that I, BERNARD E. TAYLOR, a citizen of the United States, residing at H01 oke, in the county of Phillips and State of olorado, have invented a new and useful Attachment for Test-Tube Dividers, of which the following is a specification.
The present invention appertains to dividers used in connection with test tubes for determining the percentage of butter fat in cream, and it is the object of the invention to provide means for use with dividers of that character to facilitate the manipulation thereof, it being ordinarily a difficult and troublesome matter to properly hold the points of the dividers in place against the cylindrical surface of the test tube, due to the points slipping to one side or the other.
The object of the invention is to provide a device either attached to or forming a part of the divider and serving the oilice of holding one point in proper position while the other point is adjusted to its position.
It is also the object of the invention to provide a device of the nature indicated which is simple and inexpensive in construction, which can be used upon various dividers, and which is thoroughly practical and eflicient in use.
\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction, hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.
The invention is illustrated in the accompanying drawing, wherein:
Figure l is a side elevation of the dividers illustrating the present device applied thereto.
Fig. 2 is an enlarged section taken on the line 2--2 of Fig. 1.
Fig. 3 is an enlarged sectional detail taken on the line 3-3 of Fig. 2.
The dividers illustrated embodies the legs 1 and 2 having their butt ends jointed or pivoted together as usual, and provided with the pointed terminals 3 and 4.
In carrying out the invention, a member Specification of Letters Patent.
'vent the 5 longitudinally of the terminal {1 opposite side, and not interfering with the I Patented Dec. 18,1917.
hasone end secured to said terminal at one side thereof, and the other pointed terminal of the member 5 is offset away from the terminal 4 to one side of the plane of the legs 1* and 2, and the pointed terminal 6 of the member 5 projects beyond the terminal 4, as seen in Fig. 2. As illustrated, the member 5 is detachably and adjustably assembled with the leg 2, the butt end of the member 5 having a clamp 7 to embrace the leg and the ends of the clamp are connected by a screw 8 whereby the clamp can be contracted to tightly embrace the leg of the dividers to hold the device in place. hen the screw 8 is loosened, the device can be adjusted or removed. The member 5 can be attached to the dividers in any other suitable manner, however, and may constitute an integral part of the dividers preferred.
The terminal 6 is so arranged, that when the point of the leg 2 is placed against the side of the test tube T, the terminal 6 is adapted to bear against the test tube, as seen in Figs. 1 and 2, whereby to prevent the leg 2 from slipping toward the opposite side, pressure being applied to said leg 2 to hold the terminal 6 against the test tube, thereby holding the pointed end of the leg 2 in place while the leg 1 is swung to bring its point to the desired point of the test tube. It is thus an easy matter to hold the point of the leg 2 in the desired position while the other point of the dividers is adjusted, by applying a slight pressure to the leg 2 it is prevented from slipping, the pressure applied to the leg 2 being away from the observer in Figs. 1 and 2. By disposing the leg 2 the lowermost, the lower point can be held in place while the upper point is being positioned, and without danger of burning or scalding the fingers, which sometimes occurs in the use of ordinary dividers. The terminal 6 is located at one side of the dividers, so that the opposite side thereof can be placed on the paper or chart without the interference of the terminal 6.
Having thus described the invention, what is claimed as new is 1. A tube divider having a pair of legs. a member carried by one leg having a terminal offset to one side of the dividers and projecting beyond the point of said leg to bear against a test tube at one side to preoint from slipping toward the.
placing of the opposite side of the dividers one side of the dividers so that the opposite in on a chart or paper. 7 side can be placed on a chart or paper.
2. Test tube dividers having a pair of In testimony that I claim the foregoing legs, and a clamp fitted adjustably on one as my own, I have hereto afiiXed my signaleg and having a terminal extending beyond ture in the presence of two Witnesses.
the point of said leg and ofiset to bear BERNARD E. TAYLOR. against one side of the test tube for prevent- Witnesses:
ing said point from slipping toward the op- L. HAMILTON,
posite side, said terminal being located at L. E. HAMILTON.
Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, D. G.
US14953417A 1917-02-19 1917-02-19 Attachment for test-tube dividers. Expired - Lifetime US1250383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14953417A US1250383A (en) 1917-02-19 1917-02-19 Attachment for test-tube dividers.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14953417A US1250383A (en) 1917-02-19 1917-02-19 Attachment for test-tube dividers.

Publications (1)

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US1250383A true US1250383A (en) 1917-12-18

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