US667408A - Curd-mill. - Google Patents
Curd-mill. Download PDFInfo
- Publication number
- US667408A US667408A US1900020193A US667408A US 667408 A US667408 A US 667408A US 1900020193 A US1900020193 A US 1900020193A US 667408 A US667408 A US 667408A
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- Prior art keywords
- curd
- disks
- shaft
- strips
- mill
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- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/485—Cutter with timed stroke relative to moving work
- Y10T83/494—Uniform periodic tool actuation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7684—With means to support work relative to tool[s]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7851—Tool pair comprises disc and cylindrical anvil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8789—With simple revolving motion only
- Y10T83/8794—Revolving tool moves through recess in work holder or cooperating tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8789—With simple revolving motion only
- Y10T83/8796—Progressively cutting
Definitions
- Our invention relates to improvements in cheese-making apparatus, and has particular relation to curd-mills.
- One object of our invention is to provide a mill of this character which is capable of being driven at a relatively high speed and continuously without deteriorating the product.
- a further object is to provide a structure embodying a series of cutting-disks moving in the same direction as the curd is moved and a rotary cutter moving in an opposite direction to the cutting-disks, said cutter operating in connection with a stationary coacting cutting edge.
- a further object is to provide a construction in which the curd is substantially compressed in its passage through the cuttingdisks, said compressing action serving to aid in the'auto matic feeding of the curd through the cutting mechanism.
- a further object is to provide a construction which is simple and eificient in operation, durable in construction, which combines a minimum number of parts, which can be readily assembled and taken apart for cleaning purposes, &c., and which can be made at a low cost of manufacture.
- Figure l is a top plan view of our improved curd-mill.
- Fig. 2 is a side elevation of the same.
- Fig. 3 is a vertical cross-sectional view taken on the line 3 3 of 'Fig. 1.
- Fig. 4 is a longitudinal sectional view taken on the line 4 4 of Fig. 1.
- Fig. 5 is a detail view showing the manner in which the rotary cutter is formed.
- Curd-mills by reason of their necessarily operating in connect-ion with a substantially semiliquid mass, must combine certain qualities present only in machines used for that purpose.
- the primary object of such machines is to eliminate the whey as much as possible and with rapidity.
- the general practice is to subject the curd to what might be called a disintegrating process, in that the molecular structure of the curd is changed, this being accomplished by cutting the cu'rd into strips and sometimes again cutting these strips to form cubes, after which these cubes are again passed through the mill untila proper separation of the molecular structure is obtained.
- the machines heretofore constructed for this purpose have generally been so formed as would allow of their being operated only by hand, the use of a reciprocating plunger being employed to force or feed the curd into a position where it would be acted upon by knives arranged in proper manner, the curd being fed under pressure.
- a continuous operation is not possible, owing to the requirement of successive recharging of the plunger-cylinder, making. it compulsory that the mill be operated by hand, and while other constructions have been used heretofore they are not capable of being operated with rapidity and continuity without deteriorating the product obtained.
- the present apparatus is intended to accomplish the same results as a slowly-operating or hand machine, yet enabling it to be run at a relatively high speed and with continuity,- as well as compelling a minimum cost for labor with an increased output.
- 1 1 designate tw'o longitudinally-extending beams, spaced apart, which are held in proper position'by the end cross-beam 2 and intermediate beams. 3 3, as shown in Fig. 1, the opposite end of the beams 1 requiring no support.
- p Extending longitudinally of the above-described frame is a shaft 4, mounted in suitable hearings in the cross-beam 2 and beams 3 3, the outer end of said shaft being provided with a suitable drive-wheel 5, as shown in Fig. 1.
- the shaft 4 extends through the beams 3 3 and intermediate the beams is provided with suitable spaced cutting-disks 6, (shown in Figs. 3 and 4,) which are adapted to be rotated by said shaft.
- Said disks may be mounted in any suitable manner and may i be held as to proper spacing by any suitable auxiliary means-such, for instance, as being clamped between the opposing faces of two supporting-blocks. to extend through suitable slots 7, formed in the inclined bottom 8 of the hopper 9, said hopper resting on said beams 3 3 and being removably secured thereto, if desired- Said hottom 8 to enable a readier removal is formed in two parts, the lower part 10 forming a continualiun of the main portiom-as shown in Fig.
- said lower part 10 having also slots 11 coinciding with the slots 7, thus providing a bottom extending beyond the path of movement of the disk, yet arranged to form a continuous passage-way from the hopper and without changing the angle of inclination of the bottom and without varying the direction of movement of any material passing said cutting-disks.
- the lower part 10 of the bottom may be secured to the beams 3 in any suitable manner.
- the inner end of the shaft 4 is provided with asuitable gear-wheel 12, which is adapted to coiiperate with a similar gear-Wheel 13, mounted on a shaft 14, extending in vertical 'alinement with the shaft 4, said shaft 14 being mounted in suitable bearings 15 on the beams 3.
- the shaft 14 extends through the sides: of the hopper 9, said hopper having suitable slots to allow of its being readily passed over the shaft, and is. provided. intermediate the sides of the hopper with a. suitable roll, preferably wood, against which said cuttingdisks .6 rotate, said roll and said disks moving simultaneously in opposite directions.
- Said disks 6 are adapted As heretofore explained, the strips of curd are forced toward the front of the mill by the continuous movement of the roll 16, said st rips being formed substantially continuous in length. As these strips are design ed to be cut into lengths of substantially predetermined size, means m ustbe provided for severing these strips, and as the feeding movement is continuous the cross-cutting movement should also be continuous. In the present construction this cross-cutting is obtained by means of a rotary cutter, which is best disclosed in the drawings. In forming this cuttera shaft 17 is provided, extending in a plane parallel to that of the shaft 4, said. shaft being mounted in suitable bearings formed on the beams 3. Said shaft 17 is given a rotary movement by The two gear-wheels I8 and 19, located on the shafts l and 17, respectively.
- the shaft 17 is provided intermediate the beams 3 with two or more disks 20, each having radially-extending arms 21, said disks be-
- the numberofdisks 20 is preferably two, one near each end, while we prefer to provide each disk with three spaced arms 2i; but it is to be understood that the number of disks and arms may be varied as found desirable.
- said disks 20 are secnred on the shaft 17 in such manner as will allow said arms 21 to be out of longitudinal alinement. In other words, said arms extend radiallyat different angles relative to the arms on the opposing disk.
- the outer ends of said arms 21 form supports for the knives 22, said kniveslbeing preferably formed of substantially narrow metal strips and having their ends bent inwardly and extending radially along said arms, to which they are secured by suitable means, such as bolts 23.
- suitable slots 24 are formed therein, as shown best in Fig. 5.
- the angle atwhich said knives or blades 22 extend is not necessarily fixed; but it. is preferable that they be arranged so that there is not a continuous cutting, in so 5 far as: the rotary cutter is concerned, it being understoodmfconrse, thatsuflicienttimemust be allowed to enablethe roll 16 to feed the curd strips: forward a sufficient distancefor the forming; of the cube, While; we have: shown and described the K knives or blades: 22 as formed of strips, said knives may be formed. of wire, if desired, 3.1-,
- acurd-machine In acurd-machine, the combination with a series of spaced cutting-disks; a feed and compressing roll located over said disks and cooperating therewith; and a rotating cutter, said disks and said cutter being arranged to out in directions at right angles with each other; of a hopper having an inclined bottom extending from the rear end of the hopper to a point contiguous to the path of movement of said rotating cutter, said disks extending through said bottom, whereby a continuous feed-table is provided extending through the cutting-disks to said cutter.
- curd-mill comprising a hopper having an inclined bottom; a rotating shaft extendhopper; a series of spaced cutting-disks carried by said shaft and extending through said bottom and into said hopper intermediate the ends of said bottom; a feed and compressing roll located over and mounted to cooperate with said cuttingdisks, the movement of said disks and roll aiding the feeding movement of the curd, Whereby curd strips will be formed; and a rotating cutter mounted to cooperate with the forward cutting-knives mounted embrace the arms;
- a curd-mill comprising a support; the hopper 9 removably mounted thereon, hopper having the sectional inclined bottoms 8 and 10, the latter being carried by the support; the shaft 4 having spaced cutting-disks 6 extending through said bottom; the shaft 14; the gears 12 and 13; the feed and compressing roll 16 located over and cooperating with said disks; the shaft 17; the gears 18 and 19; and the cutters carried by the said the portion 10, substantially as and for the purpose described.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Description
No. 667,408. Patented Feb. 5, I90l. w. F. SNYDER & F. L. BLOSS.
CURB MILL.
Application fil ed June 13. 1900..
2 Sheets-Sheat I,
(No Model.)
inventors- Patented Feb. 5, l90l.
- w; F'.--SN-YDER.& F. L. BI.0$S.
CURB MILL.
(Application filed. June 13, 1900.1 we Model.) 2 Sheets Sheet 2.
9am fittorneys.
UNITED STATES PATENT ()FFICE.
WILLIAM F. SNYDER AND FRANK L. BLOSS, OF ANDOVER, NEW YORK.
. CURD-MILL.
SPECIFICATION forming part of Letters Patent No.
667,408, dated rebruar 5. 1901.
Application filed J'une18,1900. SerialNo. 20,193. KNomodel.)
To all whom it may concern.-
Be it kn'own that we, .WILLIAM F. SNYDER and FRANK L. BLOSS, citizens of the United States, residing at Andover, in the county of Allegan y and State of New York,have invented a new and useful Improvement in Curd- Mills,of which the followingisaspecification.
Our invention relates to improvements in cheese-making apparatus, and has particular relation to curd-mills.
One object of our invention is to provide a mill of this character which is capable of being driven at a relatively high speed and continuously without deteriorating the product.
A further object iS to provide a mill in which the curd is automatically fed to the cutting mechanism and carried therethrough, the curd during its passage being first cut into strips substantially square in crosssection, which strips while moving during the feeding being cut oif to form cubes, the latter passing out of ,the path of movement of the moving strips automatically.
A further object is to provide a structure embodying a series of cutting-disks moving in the same direction as the curd is moved and a rotary cutter moving in an opposite direction to the cutting-disks, said cutter operating in connection with a stationary coacting cutting edge.
A further object is to provide a construction in which the curd is substantially compressed in its passage through the cuttingdisks, said compressing action serving to aid in the'auto matic feeding of the curd through the cutting mechanism.
A further object is to provide a construction which is simple and eificient in operation, durable in construction, which combines a minimum number of parts, which can be readily assembled and taken apart for cleaning purposes, &c., and which can be made at a low cost of manufacture.
Tothese and other ends, the specific nature of which will be readily understood as the invention is hereinafter disclosed, our said invention consists in the improved construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the appended claims. v
In the drawings forming a part of this specification, and in which similar reference characters indicate similar parts in all of the views, Figure l is a top plan view of our improved curd-mill. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical cross-sectional view taken on the line 3 3 of 'Fig. 1. Fig. 4 is a longitudinal sectional view taken on the line 4 4 of Fig. 1. Fig. 5 is a detail view showing the manner in which the rotary cutter is formed.
Curd-mills, by reason of their necessarily operating in connect-ion with a substantially semiliquid mass, must combine certain qualities present only in machines used for that purpose. The primary object of such machines is to eliminate the whey as much as possible and with rapidity. In doing this the general practice is to subject the curd to what might be called a disintegrating process, in that the molecular structure of the curd is changed, this being accomplished by cutting the cu'rd into strips and sometimes again cutting these strips to form cubes, after which these cubes are again passed through the mill untila proper separation of the molecular structure is obtained. The machines heretofore constructed for this purpose have generally been so formed as would allow of their being operated only by hand, the use of a reciprocating plunger being employed to force or feed the curd into a position where it would be acted upon by knives arranged in proper manner, the curd being fed under pressure. With such constructions a continuous operation is not possible, owing to the requirement of successive recharging of the plunger-cylinder, making. it compulsory that the mill be operated by hand, and while other constructions have been used heretofore they are not capable of being operated with rapidity and continuity without deteriorating the product obtained.
The present apparatus is intended to accomplish the same results as a slowly-operating or hand machine, yet enabling it to be run at a relatively high speed and with continuity,- as well as compelling a minimum cost for labor with an increased output. These results are obtained by means of the mill we now describe in detail. 1
1 1 designate tw'o longitudinally-extending beams, spaced apart, which are held in proper position'by the end cross-beam 2 and intermediate beams. 3 3, as shown in Fig. 1, the opposite end of the beams 1 requiring no suport. p Extending longitudinally of the above-described frame is a shaft 4, mounted in suitable hearings in the cross-beam 2 and beams 3 3, the outer end of said shaft being provided with a suitable drive-wheel 5, as shown in Fig. 1. The shaft 4 extends through the beams 3 3 and intermediate the beams is provided with suitable spaced cutting-disks 6, (shown in Figs. 3 and 4,) which are adapted to be rotated by said shaft. Said disks may be mounted in any suitable manner and may i be held as to proper spacing by any suitable auxiliary means-such, for instance, as being clamped between the opposing faces of two supporting-blocks. to extend through suitable slots 7, formed in the inclined bottom 8 of the hopper 9, said hopper resting on said beams 3 3 and being removably secured thereto, if desired- Said hottom 8 to enable a readier removal is formed in two parts, the lower part 10 forming a continualiun of the main portiom-as shown in Fig. 3, and said lower part 10 having also slots 11 coinciding with the slots 7, thus providing a bottom extending beyond the path of movement of the disk, yet arranged to form a continuous passage-way from the hopper and without changing the angle of inclination of the bottom and without varying the direction of movement of any material passing said cutting-disks. The lower part 10 of the bottom may be secured to the beams 3 in any suitable manner.
The inner end of the shaft 4 is provided with asuitable gear-wheel 12, which is adapted to coiiperate with a similar gear-Wheel 13, mounted on a shaft 14, extending in vertical 'alinement with the shaft 4, said shaft 14 being mounted in suitable bearings 15 on the beams 3. The shaft 14 extends through the sides: of the hopper 9, said hopper having suitable slots to allow of its being readily passed over the shaft, and is. provided. intermediate the sides of the hopper with a. suitable roll, preferably wood, against which said cuttingdisks .6 rotate, said roll and said disks moving simultaneously in opposite directions. By this const rnction it will be seen that when the curd is placed in the hopper its egress there.- from-is-possibleonlythroughthespacesformed between the disks 6', and as the bottom 8 is inclined the normal tendency of the card, will be to move. toward said disks. During such movement, however, the curd comes in con-- tact; with, the roll 16, which, being driven. in the direction shown. by the arrow in Fig, 3 aid in forcing" the: curd toward the disks and at; the same time tend to compress the curd between it and the; bottom 8, l'nrak ing strips of equal thickness and width, which strips are pushed forward by the continuing movement of the roll 16 and the; feeding movement of the. curd in the hopper.
Said disks 6 are adapted As heretofore explained, the strips of curd are forced toward the front of the mill by the continuous movement of the roll 16, said st rips being formed substantially continuous in length. As these strips are design ed to be cut into lengths of substantially predetermined size, means m ustbe provided for severing these strips, and as the feeding movement is continuous the cross-cutting movement should also be continuous. In the present construction this cross-cutting is obtained by means of a rotary cutter, which is best disclosed in the drawings. In forming this cuttera shaft 17 is provided, extending in a plane parallel to that of the shaft 4, said. shaft being mounted in suitable bearings formed on the beams 3. Said shaft 17 is given a rotary movement by The two gear-wheels I8 and 19, located on the shafts l and 17, respectively.
The shaft 17 is provided intermediate the beams 3 with two or more disks 20, each having radially-extending arms 21, said disks be- The numberofdisks 20 is preferably two, one near each end, while we prefer to provide each disk with three spaced arms 2i; but it is to be understood that the number of disks and arms may be varied as found desirable. As shown in the drawings, said disks 20 are secnred on the shaft 17 in such manner as will allow said arms 21 to be out of longitudinal alinement. In other words, said arms extend radiallyat different angles relative to the arms on the opposing disk. The outer ends of said arms 21 form supports for the knives 22, said kniveslbeing preferably formed of substantially narrow metal strips and having their ends bent inwardly and extending radially along said arms, to which they are secured by suitable means, such as bolts 23. To enable said knives to be adjusted properly, suitable slots 24 are formed therein, as shown best in Fig. 5. By reason of the relative angular arrangement of the arms 21 the knives 22 in their movement coact with the forward edge of the lower part 10- to produce an action similar to a pair of shears. This crosscutting by the shearing action shown is of advantage in ing movementof thee urd strips, suchas. would be necessary were the cutting to be done simultaneously along the entire length of the cuttingedge-.. The angle atwhich said knives or blades 22 extend is not necessarily fixed; but it. is preferable that they be arranged so that there is not a continuous cutting, in so 5 far as: the rotary cutter is concerned, it being understoodmfconrse, thatsuflicienttimemust be allowed to enablethe roll 16 to feed the curd strips: forward a sufficient distancefor the forming; of the cube, While; we have: shown and described the K knives or blades: 22 as formed of strips, said knives may be formed. of wire, if desired, 3.1-,
cubes to be) thrown forwardly by the knives,
operation the is placed. over the in g secured to the shaft to be rotated thereby.
that there is no necessity of stopping the feedtgo though the use; of stripswill tend tocause the cheese-vat and requires the services of but one person to operate, his duty being to keep the hopper substantially filled with the curd, the cubes simply passing back into the vat and being again placed intothe hopper for further action. As the three moving elements-the roll 16, the disks 6, and the rotary cutter-areeach driven from the same point, it will be obvious that the cubes will have substantially the same size whether the mill be run at a high or low speed. Having thus described our invention, what we claim as new is- 1. In acurd-machine, the combination with a series of spaced cutting-disks; a feed and compressing roll located over said disks and cooperating therewith; and a rotating cutter, said disks and said cutter being arranged to out in directions at right angles with each other; of a hopper having an inclined bottom extending from the rear end of the hopper to a point contiguous to the path of movement of said rotating cutter, said disks extending through said bottom, whereby a continuous feed-table is provided extending through the cutting-disks to said cutter.
2. -A curd-mill comprising a hopper having an inclined bottom; a rotating shaft extendhopper; a series of spaced cutting-disks carried by said shaft and extending through said bottom and into said hopper intermediate the ends of said bottom; a feed and compressing roll located over and mounted to cooperate with said cuttingdisks, the movement of said disks and roll aiding the feeding movement of the curd, Whereby curd strips will be formed; and a rotating cutter mounted to cooperate with the forward cutting-knives mounted embrace the arms;
end of said bottom, whereby said strips will be cut into "cube form without varying the direction of their movement.
3. A curd-mill comprising a support; the hopper 9 removably mounted thereon, hopper having the sectional inclined bottoms 8 and 10, the latter being carried by the support; the shaft 4 having spaced cutting-disks 6 extending through said bottom; the shaft 14; the gears 12 and 13; the feed and compressing roll 16 located over and cooperating with said disks; the shaft 17; the gears 18 and 19; and the cutters carried by the said the portion 10, substantially as and for the purpose described.
4. In a curd-mill, the combination of means for cutting the curd into strips and means for feeding. said strips; and a rotating cutter located in the path of movement of said strips and coacting with a fixed edge, said cutter comprising a drive-shaft spaced disks carried thereby, said disks having radial arms; on the outer ends of said arms, said knives having inwardly-ex tending slotted flanged portions adapted to ably securing said knives to said arms, substantially as described.
In witness whereof we have hereunto set our hands in the presence of two witnesses.
said
and bolts extendingthrough said slots and said arms, for adjust-f .shaft 17 and coacting with the forward end of
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US1900020193 US667408A (en) | 1900-06-13 | 1900-06-13 | Curd-mill. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US1900020193 US667408A (en) | 1900-06-13 | 1900-06-13 | Curd-mill. |
Publications (1)
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US667408A true US667408A (en) | 1901-02-05 |
Family
ID=2735964
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US1900020193 Expired - Lifetime US667408A (en) | 1900-06-13 | 1900-06-13 | Curd-mill. |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2690011A (en) * | 1949-10-26 | 1954-09-28 | Damrow Brothers Company | Curd mill |
-
1900
- 1900-06-13 US US1900020193 patent/US667408A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2690011A (en) * | 1949-10-26 | 1954-09-28 | Damrow Brothers Company | Curd mill |
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