US669432A

US669432A - Churn.

Info

Publication number: US669432A
Application number: US1283800A
Authority: US
Inventors: James B M Winburn
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-04-14
Filing date: 1900-04-14
Publication date: 1901-03-05
Anticipated expiration: 1918-03-05

Description

J. B. M. ,WINBURIL CHUR" (Application led Apr. 14, 1900.) (No Model.)

W/ TNE SSE S TN: wonms'berzks co.. Pumuma., WASHINGTON. n. l;-

JAMES B. M. WINBURN, OF-GAINESVILLE, GEORGIA.

CHURN.

SPECIFICATION formingpart of Letters Patent No. 669,432, dated March 5, 1901.

Application filed April 14, 1900.

To all whom, t may concer-n:

Beit known that I, JAMES B. M. WINBURN, residing at Gainesville, in the county of Hall and State of Georgia, have invented certain new and useful Improvements in Churns, of which the following is a specification.

This invention relates to improvements in churns, and more particularly refers to that class of churns having duplex or double-acting dashers and central dasher-staffs; and primarily the invention seeks to provide a churning apparatus of the class stated numbering among its characteristic features simplicity of construction, ease of operation, and including the no less desirable quality of providing for an increased capacity with the reduction of labor over that necessary for operating the ordinary style of churn, and the collection of all of the butter, of the cream, and of the milk in a minimum amount of time.

In its general nature my invention comprehends a pair of dasher-staffs each formed of an upper and lower section, the u ppersections each includingaslotted crank-shaft-engaging member of peculiar construction and having attached thereto a simple and easily-manipulated locking or detent mechanism for securing the upper end of the lower staff-section and holding it in position to-be properly reciprocated.

My invention also includes a novel construction of dasher-blade; and in its more subordinate features it consists in certain details of construction and peculiar combination of parts, all of which hereinafter will be fully described, and particularly pointed out in the appended claim, reference being had to the accompanying drawings, in which- Figure l is a perspective view of a churn constructed in accordance with my invention. Fig. 2 is a central vertical section of the same, taken practically on the line 2 2 of Fig. 3. l Fig. 3 is a transverse section of the upper or crank end of the churn, taken on the line 3 3 of Fig. 2. Fig. 4 is a detail perspective view illustrating one of the slotted stad-heads, the upper end of the lower sta-section, and the spring-rod devices for holding the lower staff upon the slotted head. Fig. 5 illustrates the fastening devices for securing the cover member to the churn top or body. Fig. 6is a detail perspective View, on an enlarged scale,

Serial No. 12.838. (No model.)

of one of the dasher blades or disks. Figs. 7 and 8 are cross-sections of the same, taken, respectively, on the lines '7 7 and 8 8 of Fig. 6. In the accompanying drawings, in which like characters indicate like parts in all the figures, l indicates the tub or churn-body, which may be of any suitable shape, the upper end of which in my complete construction of churn, however, has an annular bead l, the purpose of which will presently appear.

The cover 2 has an annular rim 2a, which extends over the upper edge of the tub l, and to hold the said cover securely upon the tub I provide the saine with a pair of oppositelydisposed spring-wire clamping members 3,

each of which consists of a single piece of.

wire having the ends 3a bent inward to engage eyes 2b upon the top of the cover and form, as it were, hinge-joints.

The body portion of each clamping member 3 is bent downward or curved concentrically with the cover-rim, it also being bent inward, as at 3c, whereby when the said clamps 3 are ,turned down, as indicated in Fig. 1, they will spring over the beads 1a of the tub and securely hold the cover 2 in place thereon, and to facilitate the manipulation of the clamps 3 their central portions are bent into eyes 3d, which form finger-pieces.

The under side of the cover has a veutgroove 2d to ventilate the interior of the churn and permit gases collecting therein to escape therefrom. Fixedly secured to the cover and projecting vertically upward therefrom is a pair of standards il, the upper ends of which are joined by a cross-head 5, and the said standards and cross-heads straddle a pair of centrally-disposed dasher-staff guide-apertures 2e 2e of the cover 2, as shown.

The dashers and the means for connecting them with the dasher-operating devices, the construction of which forms an essential feature of this invention, are best illustrated in Figs. l and 4, by reference to which it will be seen each dasher comprises a divided staff formed of a lower section 6 and an upper section 6a, the lower section being preferably circular and held to reciprocate freely through the cover member 2, the said lower staff-sections passing through the apertures in the cover, as clearly shown in Figs. 2 and. The lower staff-sections 6 may be of wood; but I IOO prefer to construct the upper sections of like material. Each upper dasher-staff section 6L forms, as it were, a slide portion and passes through an aperture 5a in the cross-head 5, and on the lower end of each section 6a is carried a slotted laterally-extending guide consisting of the upper section 6c, preferably integrally formed upon the lower end of the part 6, and the lower section 6d, having a like shape to that of the sect-ion 6C, to which it is secured by bolts or rivets, as shown. Each lower guide-section 6d has a non-circular socket 7 to receive the non-circular upper end of the lower staff-section 6. As a simple, effective, and easily-manipulated means for detachably securing the lower staff-section to the upper section I employ a clamping device formed of a single piece of spring-wire. Each of the clamping devices (indicated by A) consists of end portions 1l 1l, secured to the lower guide-sections 6d, and a bowed portion 12 12, having a central semicircular loop 13.

It will be noticed by reference to Fig. 3 that the device lies in a plane directly in line with the inner face of the section 6d and the loop portion 13 projects toward the socket of the part 6d. By this arrangement it is manifest that by inserting the upper end of the lower dasher-staif section into the loop 13 and fitting 6, with its undercut notch portion in line with the loop 13, the said loop will spring in a locked engagement with the said notch and hold the lower section 6 securely attached to the upper section 6L and to move therewith. To disconnect the lower staff-section from the upper, it is only necessary to spring the clamp devices A from engagement with the said section, which permits the upper end being pulled out of the socket in the guide portions 6d.

15 indicates a double cran k-shaf t j ournaled on the uprights 44, the said shaft having two crank portions 15, which operate in the slotted guide members of the dasher-staff, and the said cranks are so arranged as to impart alternate reciprocal motion to the said staff.

By forming the guide portion of the dasherstaff in sections the said sections may be readily disconnected and the dasher-sta separated from the crank-shaft members. Each lower stad-section carries a pair of dasherblades,the peculiar construction of which also forms a feature of this invention.

Each dasher-blade consists, essentially, of a semicircular disk 16, apertured to t upon the lower end of the staff-section 6, upon which they are held by clamp-screws or otherwise. Each disk 16 is fitted on its staff with its straight edge innermost, whereby a straightway passage is provided between the contiguous edges of the disks on the two staffsections 6, and the front or facing surfaces are beveled downward and inward, as at 16, whereby on the descending thrust of the staff the cream will be forced down at one side hy the downgoing dasher-disks operatingagainst the correspondiugly-shaped disk edges of the opposing dasher-blades as they rise.

To thoroughly agitate and divide the cream globules, the disks are cut out, as indicated at 16, to form cutting-fingers 16, the upper and lower edges of which taper to a point, and to produce a centrifugal or whirling action to the cream ,the said disks are also cut out in a direction at right angles to the space 16C to form wings 16f, each disk or blade having a pair of such wings the under vfaces of which taper from the front edge rearwardly, as at 16g, while the upper faces taper likewise from the rear edge forward, as at 16h.

Forming the wings in the manner stated provides for dividing the cream at a point indicated at Z on the uplift of the disks, and thereby produces a whirling of the cream in opposite directions, the direction of whirl eft'ected by one blade or disk being toward that effected by the disks on the other staff.

In operation b v reason of the peculiar construction of the dasher-blades the cream will be effectively separated anda centrifugal as well as a whirling action produced, providing, as it were, a rocking action, which will thoroughly aerify the same and produce butter in a minimum amount of time.

All of the parts can be sim ply constructed and are so combined as to cooperatively act to produce the results desired in an easy, quick, and efficient manner.

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

In a churn the combination with the body and standards projected therefrom, the crosshead joined with the standards,and the crankshaft journaled upon the standards; of the dasher-staff consisting of an upperand a lower section, the upper section comprising a guide portion 6a, movable through the cross-head, its lower end terminating in a base portion 6, extended in a line transversely to that of the crankshaft,the ends of the'said portion 6, being bent down, and a second base portion 6d, shaped like the portion 6, and opposing the said portion 6, saidportion 6d, havinga noncircular socket in its under side, and means for detachably joining the ends of the said portions 6c 6d, the lower staff portion consisting of a rod having blades at the lower end and having its upper end terminating in a non-circular portion, adapted to tit the socket locking the said lower section to the member 6d, as shown and described.

JAMES B. M. WINBURN.

Witnesses:

C. H. WINBURN, W. I. HOBBS.

IOO

IIO

in the member 6d, and means for detachably