US2292450A - Sediment test record card - Google Patents

Description

Aug. 11, 1942. 'M. KOHN 2,292,450

SEDIMENT TEST RECORD CARD Filed Aug 29, 1941 N0 No Date Date [I Clean El Excellent ElClean UExceHent E] Fairly Clean [I G004 ElFairl Clean EIGood mm, [:1 Fair DDirty DFair ElVeryDirt U Illegal DVer- Dirty DIIIegaI El lst Grade ElZhd Grade SELF-SEAL" TEST CARD Ellst Grade 52nd Grade E-Z LOCK SEDIMENT TESTCARII "SELF-SEAL TEST CARD Patented Aug. 11, 1942 UNITED STATES PATENT OFFICE SEDIMENT TEST RECORD CARD Milton Kohn, Chicago, Ill. Application August 29, 1941, Serial No. 408,777

5 Claims.

My invention relates to sediment test record cards.

. One of the objects of my invention is to provide a sediment test record card having a slight opening through which the filter disc is visible, which will facilitate the application of the filter disc to the card.

A further object is toprovide a sediment test record card in which the upper flap of the card may be readily and easily folded down on top of the filter disc and rear flap and secured in place.

Further objects and advantages of the invention will be apparent from the description and claims.

Specifically, my invention is exemplified by a sediment test record card having a sight opening or window covered with Cellophane, glassine,

or other like transparent material, bene'ath which a filter disc exhibiting the results of a test such as a cream or butter test, or a milk test for sediment, mold, or the like, may be displayed and indefinitely preserved.

In the drawing, in which two embodiments of my invention are shown,

Figure 1 is a plan view of a card before the filter disc is applied thereto;

Fig. 2 is a plan view showing the card folded and the filter disc visible through the sight open- Fig. 3 is a section on the line 3-3 of Fig. 2; Fig. 4 is a plan view showing another form of card before the filter disc is in place;

Fig. 5 is a plan view showing the card folded and sealed;

Fig. 6 is a section on the line 6-5 of Fig. 5; and

Fig. '7 is a plan view of the filter disc.

Referring to the drawing in detail, and first to Figs. 1, 2, 3, and 7, the construction shown therein comprises a flat card I, including a rear leaf 2 and a front leaf 3 foldable down onto the rear leaf about a weakened line 4, and a filter disc 5 to be secured to the rear leaf 2 and covered by the front leaf when folded down. The rear leaf is provided with locating indicia 6 for the filter disc 5, such as a printed circle slightly greater in diameter than the diameter of the filter disc and of approximately the same diameter as the diameter of in the front flap. The front flap is provided with a window 8 of thin transparent material secured to the inner face of a front leaf. The rear leaf is provided with a tongue 9 struck up therefrom underneath which the upper edge of the the sight opening 1 front 55 flap may be inserted after the filter disc is secured to the rear leaf, as shown in Figs. 2 and 3. The card may be provided with suitable indicia III in regard to placing the disc and in regard to inserting the edge of the front flap under the lock of the rear flap. It may also be provided with indicia II for indicating the grade of the liquid tests as indicated by the sediment caught by the filter disc.

The construction shown in Figs. 4, 5, and 6 is substantially the same as that shown in Figs. 1, 2, and 3, except that here the front leaf 3 of the card is secured to the rear leaf after the filter disc is in place by means of cooperating adhesives l2 placed near the edges of the leaves.

In making the test, the liquid, such as milk, cream, or the like, is strained through the filter disc 5 and the filter disc is then applied to the card properly by the aid of the positioning ring 6 on the rear flap 2. A nainsook filter may be used for cream; a lintine filter for milk, and an organdy filter may be used for separating mold from cream. The filter disc become soft and adhesive when wet and will adhere readily to the card. The front leaf 3 is then folded down over the rear leaf and over the filter disc, the sight opening I and window registering with the positioning indicia 6 on the rear card and the filter disc 5 being completely visible through the window. The card is then marked to indicate the grade and sent to the supplier of the liquid, thus showing the supplier the filter disc indicating the grade of the liquid tested.

Further modification will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the scope of the appended claims. I

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

l. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said rear leaf having a tongue struck up therein, said rear leaf therefrom under which the upper edge of the front leaf is inserted.

2. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said rear leaf having a tongue struck up therefrom under which the upper edge of the front leaf is inserted, said transparent window comprising a sheet secured to the rear face of the front leaf.

3. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear' leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible, said leaves being provided with an adhesive for scoring them together.

4. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded down on the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window se-' cured to the front leaf and extending across said opening through which window the filter disc is visible, said leaves being provided wth means adjacent the swinging edge of the front leaf when closed for securing the leaves together.

5. A sediment testing device comprising a card having a rear leaf and a front leaf having a hinge connection with the rear leaf to enable it to be folded downon the rear leaf, said front leaf having a sight opening therein, said rear leaf having visible boundary locating indicia flush with the surface of the leaf for determining the placement of the filter disc on the rear leaf, a filter disc secured by adhesion of the filtered material to the front face of the rear leaf with its periphery substantially coinciding with said boundary indicia, and a transparent window secured to the front leaf and extending across said opening through which window the filter disc is visible.

MILTON KOHN.

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