US1995445A - Means for making comparison tablets for optical examination of flour - Google Patents

Means for making comparison tablets for optical examination of flour Download PDF

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Publication number
US1995445A
US1995445A US669223A US66922333A US1995445A US 1995445 A US1995445 A US 1995445A US 669223 A US669223 A US 669223A US 66922333 A US66922333 A US 66922333A US 1995445 A US1995445 A US 1995445A
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US
United States
Prior art keywords
mould
flour
tablets
frame
casing
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
US669223A
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English (en)
Inventor
Bierdel Paul
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Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1995445A publication Critical patent/US1995445A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/10—Starch-containing substances, e.g. dough

Definitions

  • the present invention relates to means for 7 making comparison tablets for use in the known optical method of examining flour inventedby Pekar. quantities of the flour or flours to be examined and a standardfiour arespread out upon a suitable support, for instance, a wooden table by means of a suitable tool, for instance, a spatula, side by side, preferably soas to form tablets of equal area.
  • the object of the-present invention is to provide a device for making these comparison tablets or discs, which can be used by quite unskilled persons.
  • this device the required comparison tablets or discs are made quite mechanically under the same conditions and they are therefore quite uniform as regards shape'and density.
  • the manufacture is much quicker, simpler and consequently more economical, whereby the examination is greatly facilitated and cheapened.
  • One object of the invention is to provide an open mould adapted to be charged with flour, and means for rapidly removing the flour charged into the mould, for instance by the withdrawal of a separate outer mould frame or by pushing the mould bottom outwards.
  • the mould consists of an outer casing or mould frame and a movable mould bottom which are normally maintained by a spring in such a position as to-prevent the mould from being charged with flour.
  • the two mould parts that is the frame and the movable bottom, may be moved from this position manually into a position in which the mould is capable of receiving the charge of flour, and means are provided for automatically retaining the two mould parts in this position against the action of the spring referred to.
  • the means for locking the two mould parts in the flour receiving position are released by hand andthe bottom-is pushed out of the mould by the aforesaid springmeans,
  • the outer frame of the mould is made in theshape of a cap and is guided upon a vertically ex'tending stem to "the lower end of which the movable mould bottom is fixed,
  • the stem carrying the movable mould bottom is mounted in a casing which contains the means for locking the mould in the receiving position V and is provided with a knob for facilitating the manipulation of compressing the charge and positioning the mould upon the support serving for the reception of the tablets.
  • Fig. 1 is an elevation of the complete apparatus
  • Fig. 2 an end view thereof
  • Figs. 3 and 4 are sectional elevations taken in the middle plane of the apparatus and showing the mould parts in two difierent positions.
  • 1 indicates an outer casing
  • 2 is a movable mould bottom and 3 a cap-shaped outer mould frame
  • the mould frame 3 is placed in the form of a cap over the bottom 2, the latter being fixed to the lower end of a stem 4 guided in a tubular portion 5 of the casing.
  • the stem 4 carries outside the casing 1 a nut screw 6 by means of whichit may be adjusted and fixed in the adjusted position.
  • the mould frame 3 isslidable upon the stem 4, the upward movement being limited by the lower end of the tubular portion 5 acting as a stop.
  • a helical spring '7 tends to move the bottom 2 and the frame 3 apart and hold them in the position 40 shown in Fig. 3, in which the mould is entirely closed. It will be understood that in this position the outer-face 8 of the bottom 2 must be either flush with the edge 9 of the frame or project outwardly beyond the edge.
  • the lower end of the lever arm 14 is adapted to act as a locking catch for holding the mould frame 3 in the position shown in Fig. 4.
  • the mould frame 3 may be brought from the position shown in Fig. 3' to that shown in Fig.
  • theouter end of the lever arm 12 projects through a slot 16 from the casing so that it 12, 14 is a double-armed may be externally operated.
  • 13 is a central tubular extension of the mould frame 3 which cooperates with the arm 14 and has a recess containing part of the spring 7. It will be understood that the arm 12 is very conveniently placed for manipulation being close to the nut 6 which serves as a manipulating knob.
  • an outer casing having a central tubular portion; a stationary mould bottom fixed to the lower end of a stem, said stem being mounted in said tubular casing portion; a capshaped outer mould frame slidably mounted upon said stem; a helical spring interposed between said mouldbottom and said cap-shaped outer frame; a spring catch mounted within the said casing and adapted to cooperate with said outer frame to hold same in the charge receiving position against the action of said spring members, said spring catch being operable from the outside, substantially as described.
  • An, apparatus for making examination tablets for the optical examination of flour comprising in combination: an outer casing having a central tubular portion; a stationary mould bottom having an upwardly extending stem mounted in said tubular portion, said stem having an outwardly extending threaded portion; a nut upon said threaded portion for adjusting and holding said stem in said tubular portion; an outer capshaped mould frame adapted to slide upon said stem; spring means within said outer frame tending to movesaid outer frame upwards and into contact with the lower end of said tubular casing portiomsaid spring means being interposed between said outer frame and said mould bottom; and a double-armed pivoted spring catch within said casing adapted to hold the movable mould frame inits charge receiving position, said spring catchv having an outwardly projecting arm arranged close to the nut holding the stem within the casing, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Food-Manufacturing Devices (AREA)
US669223A 1933-03-28 1933-05-03 Means for making comparison tablets for optical examination of flour Expired - Lifetime US1995445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE403272X 1933-03-28

Publications (1)

Publication Number Publication Date
US1995445A true US1995445A (en) 1935-03-26

Family

ID=6416335

Family Applications (1)

Application Number Title Priority Date Filing Date
US669223A Expired - Lifetime US1995445A (en) 1933-03-28 1933-05-03 Means for making comparison tablets for optical examination of flour

Country Status (4)

Country Link
US (1) US1995445A (fr)
DE (1) DE623387C (fr)
FR (1) FR753583A (fr)
GB (1) GB403272A (fr)

Also Published As

Publication number Publication date
FR753583A (fr) 1933-10-18
GB403272A (en) 1933-12-21
DE623387C (fr)

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