US537604A - Butter-packer - Google Patents

Description

I (No Model.)

2 SheetS -S h eet 1. P. B.-PARGO 8v 0'. 8. BROWN.

BUTTER PAGKER.

N 537,604, I Patent ed'Apr, 1.6, 1895.

(No Model.) 2 Sheets-Sheet'2 F. B. FAR-G0 &: C. S. BROWN. I

BUTTER PAGKE'R. Q

No. 537,604. Patented Apr. 16, 1895.

NITED STATES PATENT OFFICE.

FRANK B. FARGO AND CHARLES S. BROWN, OF LAKE MILLS, WISCONSIN.

BUTTER-PACKER.

SPECIFICATION forming part of Letters Patent No. 537,604, dated April 16, 1895.

Application filed July 9, 1894. Serial No. 516,887 (No model.)

To all whom it may concern.-

Be it known that we, FRANK B. FARGO and CHARLES S. BROWN, of Lake Mills, in the county of Jefferson and State of Wisconsin, have invented a new and useful Improvement in Butter-Packers, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

Our invention is of a machine, largely an tomatic, adapted for packing butter in a tub or analogous receptacle.

The invention consists of the mechanism and its several parts and their combinations, as hereinafter described and claimed, or their equivalents.

In the drawings, Figure 1, is a side elevation of the complete machine, showing alsoa tub in dotted lines, in position on the machine for packing butter therein. Fig. 2, is an elevation of the machine at that end that is at the left in Fig. 1. Fig. 3, is a vertical section on line 3-3 of Fig. 1, looking toward the left. Fig. 4 is a transverse section of the machine on line 4t4 of Fig. 1 and is essentially a plan of the mechanism for supporting and rotating the tub. Fig. 5, is a longitudinal section of a portion of the devices mostly shown in Fig. 4:- Fig. 6, is a plan of the packerhead or plunger.

In the drawings, A is the frame of the machine which may be of any suitable form for supporting the operative mechanism.

For supporting the tub in which the butter is to be packed, a carriage consisting of a horizontally disposed platform, is pierced at one end by a vertically disposed screw 11 on which it is movable or travels vertically. The screw 11 at its lower. end is footed in the frame and at its upper end is journaled in a cross bar thereof. The screw passes loosely through the inner end of the carriage 10 but turns in a nut 12, inserted in a recess therefor in the carriage in such manner that the nut is non-revoluble therein, but compels the vertical movement of the carriage therewith as the nut is raised or lowered by the revolution of the screw. The carriage projects laterally from the screw between two posts of the frame, and is supported, movable vertically thereon, by rollers 13 loose on pins or arbors therefor fixed in the carriage, the rollers being so disposed respectively as to bear against the outer and inner surfaces of the posts, and thereby to assist in supporting the carriage horizontally.

- The carriage 10 is provided with a longitudinal slot 14, in which a block 15 is fitted, and is movable therein horizontally toward and from the frame of the machine. The block is supported on the carriage by shoulders 16 resting on the top surface of the carriage and movable thereon. The block is preferably so constructed as to stand at a slightly oblique angle to theperpendicular. A screw 17 bearing at its inner end against the inner wall of the slot 14, and near its outer end having a collar 18 clamped-thereto, which bears against the outer end wall of the slot, turns bya screw thread through the block 15 and is adapted by its revolution to move the block horizontally in the carriage toward and from the frame. The screw 17 is provided with a hand wheel 19 for rotating it.

A ratchet wheel 20 having a fixed arbor 21 which is socketed and revoluble in the top of the block 15, is adapted to support a circular table or disk 22 thereon. Pins 23 fixed in the wheel 20 enter the disk 22 and compel concurrent rotation of the disk with the wheel. The tub is placed on the table and is held and moved up to its work thereon while being packed, as indicated in Fig. 1. The sides of the tub are usually flaring and to adapt the table for supporting the tub in such manner that its wall adjacent to the posts of the machine shall be substantially vertical, the table is disposed in a plane slightly oblique to the horizontal. The table is at a right angle to the axis of the block 15. As the tubs vary in size, the table 22 is detachable, and different sizes are used, which are adapted to fit easily within the chine of the tub, and thereby to prevent the slipping of the tub on the table.

For rotating the tub while it is being packed with butter, a pawl 24 engaging the teeth of the wheel 20 in one direction is pivoted in the extremity of a rod 25, the other extremity of which rod is pivoted to one arm of the bell crank lever 26, the other arm of which bell crank lever bears normally against the shaft 27, and is swung, and thereby actuated by a spindle 28 fixed eccentrically in disks at adistance apart rigid on the shaft 27. The bell crank 26 is pivoted on the carriage 10. The pawl-carrying extremity of the rod is piv' oted on the arm 29, which is pivoted on the block 15, concentrically with the ratchet wheel 20. A spring 30 fixed on the arm 29 bears against the pawl 24 and holds it yieldingly in engagement with the teeth of the Wheel 20. A spring 31 attached to the bell crank lever and to the rod 25 is adapted to retrieve the rod and its pawl after it has been forced forward by the action of the eccentric spindle 28, when the bell-crank lever has escaped from the spindle.

The main shaft 27 is geared to the driving shaft 32, which latter shaft is journaled in the frame and is provided with fast and loose belt pulleys 33, 33. The shaft 27 is journaled and footed in the frame.

For packing the butter in the tub a packer head or plunger 34 is fixed on a plunger rod 35, which rod has bearings and is reciprocable vertically in the frame. A laterally expanded, or cross head member 36 of the rod, located medially thereof, is provided with a horizontal slot, in which a wrist 37 travels, which Wrist is fixed in a disk 38, the disk being fixed on the shat't32. By this construction the plunger is reciproeated vertically, by the revolution of the shaft 32. The cross head 36 is preferably composed of an outer metal frame 39, within which a wood bearing block 40 is fixed, which wood-block is provided with the horizontal slot in which the wrist 37. is received and travels. The disposition of the plunger 34 is such that it moves vertically just inside of that side of the tub which is in vertical position adjacent of the posts of the frame.

It is important that the tub be suitably lowered, as it is being filled, so that the butter therein shall receive only a proper stroke from the plunger. For this purpose mechanism is provided to automatically lower the carriage 10, and other similar but complementary mechanism is provided for-automatically elevating the carriage to proper position, when an empty tub is placed on the table. For lowering the carriage a pinion 41 splined on the upper unthreaded portion of the screw 11 is geared through an idle wheel 42 to the wheel 43 fixed on the shaft 27. The wheel 42 is loose on a pin fixed in the frame. The size of these wheels is such as to give a slow and suitable revoluble motion to the screw 11 for properly lowering the carriage, while the tub is being packed under the action of the plunger 34 actuated by the shaft 32, which also drives the shaft 27. For slipping the pinion 41 out of mesh with the wheel 42 when the tub has been filled with butter, a furcate lever 44 pivoted at one extremity on the frame, rides medially in an annular groove therefor in the hub of the pinion 41 and at its free extremity is provided with a weight 45. This lever 44, when the pinion 41 is in mesh with the wheel 2, rests on the upper extremity of one arm of the bell-crank lever 46 pivoted on the frame. The other arm of the lever is provided with a depending rod 47 having a hook at its lower end, which is adapted to engage a pin 48 set in one or the other of the series of apertures in the plate 49 fixed on the carriage 10. The

construction is such that the pin 48, as the carriage 10 descends, will engage the hook at the extremity of the rod 47 and pull it down thereby releasing the arm 44 from the bell crank 46 and the weight will slip the pinion 41 downwardlyoutof mesh with the wheel 42 and thereby stop the rotation of the screw 11. A spring 50 fixed on the frame bears against an arm of the bell crank lever 46 and holds it yieldingly to position beneath the lever 44. A pin 51 fixed in the frame engages the bell-crank lever 46 and prevents its tilting, under the action of the spring 50, beyond its proper position beneath the lever 44.

The automatic complementary mechanism for elevating the carriage 10, consists of a pinion 52 splined on the upper unthreaded portion of the screw 11, which pinion meshes with a large wheel 53 fixed on the shaft 27, whereby when the pinion 41 is out of gear with the shaft 27, and the pinion 52 is in gear therewith, the screw 11 will be reversely rotated and will elevate the carriage 10. By reason of the considerable size of the wheel 53 as compared with the pinion 52, and as compared with the wheel 43, the carriage 10 is elevated rapidly, by the same rapidity of revolutions of the shaft 27, that lowers the carriage slowly when the pi nion 41 is in gear therewith. This provides for lowering the tub slowly while it is being filled with butter, and for elevating the carriage quickly when an empty tub is placed on the table, to raise it to position quickly, so that the plunger will contact with butter in the tub near its bottom. The pinion 52 is slipped up on the shank of the screw 11 and held normally out of gear with the wheel 53, by means of the weighted lever 54, which is medially pivoted on the frame and the furcate ends of one extremity of which ride in an annular groovetherefor in the hub of the pinion 52, the other arm of the lever being provided with a weight 55 adapted normally to lift the pinion out of gear with wheel 53. The pinion 52 is put into mesh with the wheel 53 by lifting the free end of the lever 54, and a bell crank lever 56, pivoted on the frame, is so arranged, that one extremity of one arm of the lever 56, being swung underthe weighted arm of the lever 54, supports it in the position that retains the pinion 52 in mesh with the wheel 53. A rod 57 connected at one extremity to the other arm of the bell crank lever 56, depends therefrom and is connected to one extremity of a tripping lever 58, which is medially pivoted on the frame, in such position as to be engaged and tripped by the carriage 10 in its travel upwardly, when it reaches the point at whichthe carriage should stop for the proper position of the tub with reference to the plunger. The trip of this lever 58 by the carriage operates to tilt the bell crank lever 56 and release the weighted arm -of the lever 54, which goes down raising the pinion 52 out of mesh with wheel 53. A spring 59, fixed on the frame, holds the lever 56 yieldingly to position under the lever 54, and a stop 60 on the frame prevents undue tilting of the bell crank lever under the action of the spring.

The construction and disposition of the parts of the operative mechanism are such that the intermitting rotary motion of the table 22 occurs during the times of the upward movement of the plunger 34, so that there is no revoluble movement of the tub While the plunger is in contact with the butter.

What we claim as our invention, and desire to secure by Letters Patent, is

1. In a butter packer, a frame, a screw footed and journaled in the frame, a carriage movable vertically on ways in the frame and a non-revoluble nut in the carriage in which nut the screw turns whereby the carriage is moved vertically, substantially as described.

2. In a butter packer, a frame, a screw footed and journaled in the frame, a carriage movable vertically in and projecting laterally from the frame, a non-revoluble nut in the carriage through which the screw turns, and rollers on the carriage bearing against the frame and supporting the carriage in horizontal position in which position it moves vertically on the frame, substantially as described.

In a butter packer, a vertically moving plunger, a vertically movable carriage provided with a longitudinal slot, a tub-supporting block movable laterally on the carriage, and a screw journaled in the carriage and turning through the block, adapted to adjust the block laterally, combined substantially as described.

4. In a butter packer, a vertically reciprocating plunger, a vertically movable carriage opposite the plunger, a laterally adjustable block in the carriage, a revoluble tub-supporting ratchet wheel mounted on the block, and means for revolving the ratchet wheel intermittingly, combined substantially as decribed.

5. In a butter packer, a vertically moving plunger, a vertically movable carriage, a block adjustable laterally in the carriage, a ratchet wheel mounted revolubly on the block, a detachable table on the ratchet wheel, and means for intermittingly rotating the ratchet wheel and its load, combined substantially as described.

6. In a butter packer, a vertically moving plunger, a vertically movable carriage, a block adjustable laterally in the carriage said block having its axis slightly oblique to the perpendicular, a ratchet wheel and a table thereon mounted on the block, the table being at a right angle to the oblique axis of the block Whereby the table is adapted to so support a butter tub having flaring sides that one side will be perpendicular, combined substantially as described.

7. In a butter packer, the combination with a frame, and a vertically movable butter-tub carriage therein, of a means for automatically elevating the butter-tub carriage, comprising a vertical screw footed and journaled revolubly in the frame, a non-revoluble nut in the carriage through which the screw turns, a pinion splined on the stem of the screw, and a shaft to which the screw is geared, substantially as described.

8. In a butter packer, a frame, a traveling carriage, a screw turningin a nut in the carriage, a pinion 41 splined on the stem of the screw, a weighted lever riding in the hub of the pinion and adapted by gravity to throw the pinion out of mesh with the driven wheel, and a bell-crank lever pivoted on the frame adapted normally to support the weighted lever aforesaid, and a rod connected to the bellcrank lever, said rod having a hook adapted to engage a pin on the carriage as it descends and thereby to trip the bell-crank lever and release the weighted lever, combined substantially as described.

9. In a butter packer, a frame, a traveling carriage, a screw turning in a nut in the carriage, a pinion 52 splined on the stem of the screw, a Weighted lever adapted normally to shaft, a bell-crank lever adapted to support the weighted lever, a tripping lever pivoted on the frame in the path of the ascending carriage, and a rod connecting the bell-crank lever to the tripping lever, combined substantially as described.

10. In a butter packer, a frame, a main shaft 27, a carriage-elevating and lowering screw 11, an automatically controlled pinion 4.1 splined and sliding on' the stem of the screw and geared through an idle wheel to the shaft 27, and an automatically controlled pinion 52 also splined and sliding on the stem of said screw, said last named pinion being geared directly to the shaft 27 for reversing the motion of the screw, combined substantially as described.

11. In a butter packer, provided with a vertically reciprocating plunger, a frame, a carriage traveling vertically thereon, a tub-revolving ratchet wheel mounted on the carriage, a pawl mounted on the carriage engaging the teeth of the ratchet Wheel in one direction, a bell-crank pivoted and supported on the carriage one arm of which is in the path of an elongated eccentric fixed on a vertical revolving shaft, said shaft and eccentric, and a rod connecting the pawl to the other arm of the bell-crank lever, combined substantially as described.

12. In a butter packer, a frame, a carriage traveling thereon, a tub-revolving ratchetwheel mounted on the carriage, an arm pivoted concentrically with the ratchet-wheel, a spring-actuated pawl on the swinging arm, a bell-crank, a driven shaft provided with an eccentric spindle against which one arm of said bell-crank contacts, and a rod connecting hold the pinion out of mesh with a driven the pawl and the arm on which it is mounted to an arm of the bell-crank, and a spring for retrieving the pawl rod, combined substantially as described.

13. In a butter packer, the combination of a frame, a plunger reciprocative therein, and a table opposite the plunger, the table being so disposed that it is adapted to support a butter tub thereon in such position that one side of the flaring walls of the tub is parallel, to the line of motion of the plunger,substantially as described.

14. In a butter packer, the combination, of a frame, a plunger reciprocative therein, a table opposite the plunger movable toward and from the plunger in the direction of its reciprocation adapted to support a tub while-

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