US1353500A - Colorimeter - Google Patents

Description

F. G. SPINDLER. COLORIMETEB.

10N FILED Au A .4, 1919A 1,353,500. Patented Sept. 21, 1920.

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M /MNVENTOR F. G. SPINDLER.

COLORINIETER. APPLlcAfoN FILED AuG.4, 1919A Patented Sept. 2l, 1920.

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INVENTOR F. G. SPINDLEH.

COLORIMETER. APPLICATION FILED AUG.4, 1919.

. 1,353,500. Pandsept. 21,1920.

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INVENTOR 'front elevation of my colorimeter,

vtaken out and N. Y., -ASSIGNOR T0 ALFRED TRAEGER, 0F

NEW JERSEY. y

COLOBIMETER.

Latas.

spcification of Letters Patent.

rateatea sept. er, ieee.

Appiication mea August 4, i919. serial No. 315,260.-

T o all whom it may concern,

at the same time through a microscope.

In this type ofvcolorimeters there has been great loss of time caused bythe necessity of constantly adjusting and readjusting' thev perpendicular position of the two containers holding the liquids to be compared; This dificulty is entirely overcome in my device, which makes it possible for the `personusing it to change the perpendicular positionl o either containerwhile observing the same through the microscope.

Referring to the drawings,

Figure 1 :is a perspective of my colorimeter;

Fig. .2 is a cross section and theJ cover is a side sectional view o Fig. 2 on the line 3--3; Fig. 4 is a' top plan sectional view ofFig. 2 on the line l1---4; Fig. 5 is a rear elevation of my. colorimeter with the cover'removed; 6 is a bottom plan view of the'mirror; ig. 7 is a pers ective of one of the containers with a p ortion broken away ;Y Fig. 8 is a top plan view of one of the platforms, and Fig. 9 is a side view of the same.

In the drawings 10 is a base to which is rigidly secured `a perpendicular support 11. At 12 a bracket 13 is rigidly secured to the top edge of the su port 11,' and a circular flange 14 cut out o the bracket 13 is adapted to receive a microscope l15 of the usual two lens construction.v A hole 16 isy cutK through the bracket 13 to permit the light to pass through into the microscope, and also to permit the operator to look through. prism support 17 is rigidl secured to the bracket 13 and cap mem ers 18 at each upper portion in removed; Fig. 3

end of said support 17 are adapted to be' readily removed by removing screws 2()A so that glass' prisms 19 can be inserted or cleaned. Support 17 has downturned circular flanges 21 into which glass plungers 22 having bottoms 22a fused to tubular portions 22 and having metal flanges 23 are Be it known' that I- FERDINAND G. Srila; Germany,

. edges of the holes 29 so ing screws 51 to cept that adapted to be fastened by means of ,screws 24.

Two guide members 25 are secured to the perpendicular support 11 by means of are cut in onthe sides, so as" to 'be narrower atthe sides nearer the support 11, so that platforms 27 will fit over the same at the open ends 28 and slide thereon. The platforms 27 also have holes 29 lcut through them so that light from below may pass up through, and the operator look through them. Grooves are cut around the as to 30 on which transparent containers 31, are adapted to be placed. Containers 31 have separate bottoms 32 secured thereto by fus. or otherwise, same as plungers 22, so that the exact thickness and lane surface of the bottoms can be more perfectly regulated. The platforms 27 are slotted at 33 so as' to permit tightening of the sides of the oening 28 onthe slides ed by means of the adjustmentscrews 35. Indicators 34 are rigidly secured to the platforms 27 sothat 36 lin the support 11 and indicate the perpendicular positions of the platforms 27 on a scale 37 which is rigidly secured to the back of the support ,11.

Bell crank levers 38 having `handles 41 are pivoted in the support 11 below the ylower ends of the slides 25 on are connected to the platforms 27 by means of the links 40 which are connected so that they turn freel at each end. The bell crank levers 38 have ong levers 42 rigidly secured to the shafts 39 by means of set screws 43 vand short levers 44 rigidly secured to the shafts 39. l

A mirror 45 is mounted in the support 11 on a l"shaft 46 by means of a nut 47 and a spring washer 48 below the shafts 39, so that i't can be tilted. as desired at either end. The mirror 45 is also supported by the bearings 49 on the head of the T-shaft 46 so that it can be tilted down or up o`n its side edge.

A cover 50 ispivoted b means of pivot the side of t e support 11, so that when closed it will shut out all light from the containers 31 and plungers .22, eX-

thrown up from the mirror The cover 50 is hinged at 52 so that it can be partly opened when desired.

In using my colorimeter a known color density is placed in one of solution of the 25 which can be e ectthey project through slots shafts 39, and

containers, and the platform on which said container rests is raised by pulliiig up on the vhandle 4l of the lever 38 until the plunger 22 is at the required depth in the solution as indicated by the indicator 34 on the scale 37.

The solution tobe tested is then placed in the other container andl raised in the same .way until the color -of bothsolutions isthe vIn orderv same to the eye of theoperator. to get this container at the proper position to obtain the same 'color on each half ofthe field of vision of the operators eye it may be necessary to raise and lower this second container several. times until the vcolor is exactly the same, and this" the operator can do with one hand while he is observing the effect through the microscope. .As soon as both halves 'of the field of vision of the operators eye show the same color so that it appears like one eld of vision then the reading of the second in'dicator can be taken on the scale 3 7, and this will give the color density of the solution being tested.

The mirror 45 should be adjusted before a support, of lundercut guideways on the Iport above the Vthe standard, platforms front face of the support, platforms movable along the support and having containerreceiving sockets and rear seats that slidably interit with the guideways, said platforms being slotted from the sockets to the seats, means for adjusting the platforms, and optical mechanism mounted on the supterials supported bysaid platforms.

2. In a colorimeter, the combination with a support, of independently adjustable container carriers mounted on the support,

' optical mechanisms mounted on the support for observing materials in the containers placed on the carriers, and a hood for wholly or partly inclosing the containers mounted on the carriers, said hood being hingedly mounted on'the support at one side of the carriers and comprising hingedly `connected Walls.

3. In a 'co1orimeter, the combination with a base, ,of a standard mounted thereupon,

dovetailed guideways on the front side of having dovetail sockets that slidably receive the guideways, rock shafts journaled in the lower vportion of the linked to the platforms, optical mechanism mounted on the upper end of the standard forobserving materials carried by the platforms, and a'hood forv partly or wholly in` closing the platforms hingedly connected walls, one ofl which is hinged to one side of the standard.

In testimon whereof I affix mIy si nature.

FE DINAND G. SP ER.

platform for observing ma# standard and having crank arms and comprising

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