US1229812A - Screening or separating machine. - Google Patents

Description

1. STU RTEVANT. SCREENING 0R SEPARATING MACHINE APPLICATION FILED DEC. 12, 1916. 1 LE9 Patented June 12, 1917.

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T. J. STURTEVANT.

SCREENING 0R SEPARATING MACHINE. APPLICATION FILED 0Ec.12.19l6.

Patented June 12, 1917.

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T. J. STURTEVANT.

SCREENING OR- SEPARATING MACHINE.

' APPLICATION FILED DEC. 12 1915- 1 ,929,8 1 2 Patented June 12, 1917.

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T. J. STURTEVANT. SCREENING OR SEPARATING MACHINE.

- v APPLICATION FILED DEC. 12 I915- 1 ,Q9,T1 2., Patented June 12, 1917.

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STURTEVAN T MILL COMPANY,

A CORPORATION OF MAINE.

SCREENING OR SEPARATING MACHINE.

Specification of Letters Patent.

Patented June 12, 1917.

Application filed December 12, 1916. Serial No. 136,552.

To all "whom it may concern:

Be it known that I, TrroMAs J. STURTE- VANT, a citizen of the United States, residing at Wellesley, in the county of Norfolk and State of Massachusetts, have invented or discovered certain new and useful Improvements in Screening or Separating Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to separating machines which are made in detachable sections or units placed side by side, so that a machine of any desired capacitymay be furnished at short notice, each of the de tachable sections or units being provided with its own screens and its own jarring mechanism. This detachable unit construction is advantageous to the manufacturer in that a machine of any desired capacity may be quickly provided by furnishing any desired number of sections or units, and a large machine may be conveniently transported in sections which can be readily secured together in setting up the machine for use. Moreover the user of a machine comprising a number of complete sections or units may set up a machine of any desired capacity by joining together any desired number of such sections or units. In

accordance with the present invention a common distributer will supply the material to be screened by the several units or sections of the separating machine, such distributer preferably consisting of a rotary conveyer mounted in a feed box common to the several sections of the screening or separating machine and provided with means for distributing to each section or unit its proper amount of material. This feed box, as also the rotary conveyer or dis tributer, may be made in detachable sections corresponding to the sections or units of the separator; or the feeding and distributlng parts may be made integral, and in such case may be furnished in lengths corresponding to the number of sections or units of the screening or separating machine which are to be used together. The feed box is preferably of such construction that the shaft carrying the rotary conveyer may be readily inserted into or removed from the front thereof, and said feed box is preferably provided with a hinged rear door affording ready access to its chamber, for

' from each other,

' sections or units hinged at its top so desired.

adjustment of the feed purposes.

In the accompanying drawings Figure 1 is a front view of a two-section or two-unit inclined separator embodying the present invention, with the cover of one section or unit in raised position, and Fig. 2 is a broken out side view of the same. Fig. 3 is an end view of the two-unit separator looking from the bottom of Fig. 1. Fig. 4 1s a rear view of the top part of a twosection separator provided with a sectional feed box, and Fig. 5 is an end elevation of one unit of the sectional feed box. Fig. 6 shows in detail a removable front standard or bracing part for the sectional feed box. Figs. 7 and 8 are detail side and end views respectively of one of the removable slides at the ends of the feed box. Fig. 9 is a detail view of part of a sectional conveyer.

Referring to the drawings, 12 denotes the casings of the units of the sectional inclined separator, these casings having complete side parts so that the chambers of the adjoining units or sections are fully divided each casing thus having its own screening or separating chamber. The 12 are detachably secured together by means of bolts 10 passing through bracing sleeves l1 interposed between the adjacent sides of the sections or units, as more clearly shown in Fig. 3. Each separator section or unit is provided with a movable cover 13 which is preferably that it may be lifted, as more clearly shown in Fig. 2, when access to the chamber of a section or unit is The operating portion of the jarring mechanism of each section or unit is mounted on its hinged cover and may be of any desired construction. This operating mechanism, as herein shown, is similar to that shown and described in the Sturtevant U. S. Patents Nos. 1,035,262 and 1,114,064, and comprises rotating shafts 11 mounted on standards fixed to the covers 13, and provided with arms 15 carrying rollers 16 which lift pivoted hammers 17 and which hammers, when released from said rollers, strike on the jarring posts 18. Each screen section is provided with a nonvibrating coarse or scalper screen 19 and a vibrated fine screen 20 below said coarse or scalper screen. The vibrating screen 20 is sustained by spring supports 21 beneath plate or for other which are located stops 9.). which limit the downward movements of the vibrating screen, these spring supports and stops being preferably located at the sides of the screen, as clearly shown in Fig. 3. The vibrating screens 20 are provided with cross plates 23 on which are mounted sockets 2-1 which" receive the lower ends of the jarring posts 18 passing loosely through sleeves 25v mounted on cross plates 26 with which the scalper screen .19 is provided.

Mounted at the upper ends of the inclined separator sections onunits is a feed box 27 in which is journaled a shaft 28 provided with a screw conveyor 29 which distributes the material to be screened or separated and which material is supplied to said feed box from an opening or hopper located at 30 at oneend of said feed box at the point where said feed vbox overhangs the separator, so that the material supplied to the screens will fully cover th same late ally at the upper ends thereof. This feed box and the rotary conveyer or distributer which is mounted therein is common to the several sections or units of the separator so to supply material to all of the same, such material passing over an adjustable'feed plate 31 having an inclined upper edge which is highest'at the end of the feed box where the material enters. This feed plate may be made'in independent sections as shown in Figure. The feed box is provided infront with a hinged door or cover 32 which, when unbolted, may be raised for the convenientinsertion of the conveyor shaft and its bearings QStsccured in place by screws or bolts 28 and in front of said bearings are slides or removable parts .33 which may be taken out when the conveyer ings are to be removed or inserted, said slides or removable parts being held in place by said door or cover 32 when the latter is closedand secured. The feed box is prefe'ably. provided at its rear side with a hinged door 3i, affording ready access to the adjustable feed plate 31; and each casing, affording a screening chamber, is also preferably provided at its .upper end with a hinged door which may be opened to afford access to said screeningchamber. as for the insertion or removalzo't' the screens.

The feed box is preferably removably bolted to the casing sections or units and may be made in one part, as shown inldig. 1, of asuitable length to supply materialto a plurality of screen seetions'or units; or this feedbox may be made in sections, as shown in Figs. it and 5, approximately corresponding in length to the width of the sections or units of the screen or separator. In such case the contiguous parts of said. screen sections are provided with flanges 36 for the reception of bolts by which said screen sections may be detachably secured together.

shaft and its bear-- In order to enable the conveyer shaft to be conveniently removed from or inserted into the front of the feed box in this sectional construction of feed box-just referred to, the said feed box will be provided at its front with removable standards or bracing parts 27 which may be taken out when the hinged door 32 is lifted for the insertion or removal of the conveyer and the feed shaft 28. Also the conveyer shaft and screw conveyer may be made in one part as shown in Fig. 1, or said shaft and its attached conveyer may be made in detachable parts, as shown in Fig. 9, corresponding in length to the width of the detachable casing sections, one part for each section or unit of the screening or separating machine. In this sectional conveyer construction the contiguous ends of the sections of the conveyerare provided with fixed collars 37 having flanges tl irough which attaching screws or bolts 38 pass. i

From the foregoing it will be understood that a separator comprising a plurality of detachable sections or units will be provided for supplying the material to be screened or separated to the several sections or units of the separator, and that such common feed box and distributing 'conveyer, which is re movably mounted at the upper ends'of the sections or units of the inclined separator, may be made in lengths corresponding to the width of a plurality separator sections or units, or may be made in detachable parts each corresponding in length to the width of a separator section or unit, these sectional parts being more convenient for transportation than the longer parts would be.

The generalconstruction of the sectional separator herein shown and described is not herein claimed, as it formsthe subject-matter of my application No.'133,399,' filed Nov. 25,1916.

This invention is not to be understood as being limited to the particular details of eonstruction herein'set forth, as such details may be varied widely, within the province of mechanical skill, without departing from the spirit and scope of the invention.

Having thus described my invention 1 claim and desire tosecure by Letters Paten't: I

1. In a separator, the combination with a. plurality of inclined separator sections or units comprising complete casingsarranged side by side'and detachably secured together and each provided with its owninc'lined screen or screens and it's own jarring mechanism, of a feeclfbox and distributer common to said sections or units, said feed box being removably mounted at the upper ends of said sections 'orunits, and being thus adapted to supply material to all of the same. 1 i

2. In a separator, the combination with a plurality of inclined separator sections or units comprising complete casings arranged side by side and detachably secured together and each provided with its own screen or screens and its own jarring mechanism, of a feed box formed in sections corresponding in length to the width of said screen sections or units, and a distributer common to said sections or units, said feed box being removably mounted at the upper ends of said sections or units, and being thus adapted to supply material to all of the same.

3. In a separator, the combination with a plurality of inclined separator sections or units comprising complete casings arranged side by side and detachably secured together and each provided with its own in clined screen or screens and its own jarring mechanism, of a feed box and distributer common to said sections or units and both formed in detachable sections c0rresponding in length to the width of said separator sections or units, said feed box being re-' movably mounted at the upper ends of said sections or units, and being thus adapted to supply material to all of the same.

4:. An inclined separator provided at its upper end with a feed box having a door at its front, a rotary distributer mounted in said feed box, and removable slides at the ends of said feed box in front of said distributer, so that the latter may be inserted or removed from the front of said feed box when said door is opened.

5. An inclined separator provided at its upper end with a feed box having a door at its front, a rotary distributer mounted in said feed box and removable slides at the ends of said feed box in front of said distributer, so that the latter may be inserted or removed from the front of said feed box when said door is opened, said slides being held in place in front of the journals of said distributer by said door when the latter is closed.

6. In a separator, the combination with a plurality of inclined separator sections or units comprising complete casings arranged side by side and detachably secured together and each provided with its own Copies of this patent may be obtained for five cents each, by addressing the inclined screen or screens and .its own jarring mechanism, of a feed box and dis tributer common to said sections or units, said feed box being removably mounted at the upper ends of said sections or units, and being thus adapted to supply material to all of the same, and said feed box being formed in detachable sections corresponding in length to the width of said separator sections or units.

7. In a separator, the combination with a plurality of inclined separator sections or units comprising complete casings arranged side by side and detachably secured together and each provided with its own inclined screen or screens and its own jarring mechanism, of a feed box and distributer common to said sections or units, said feed box being removably mounted at the upper ends of said sections or units,

and being thus adapted to supply material to all of the same, said distributer being formed in detachable sections corresponding in length to the width of said separator sections or units.

8. A separator comprising a plurality of complete separator units detachably secured together and each having its own casing, screens and jarring mechanism, of a feed box mounted at the upper end of said separator units and formed in detachable sections corresponding in length to the width of said separator units, a rotary screw conveyer or distributer mounted in said feed box and formed in detachable sections corresponding in length to the width of said separator sections, and a feed plate formed in independently adjustable sections corresponding in length to the width of said separator sections.

9. An inclined separator provided at its upper end with a feed box having a door at its back, combined with a rotary distributer mounted in said feed box, and a feed plate in said feed box, said feed plate being in independently adjustable sections.

In testimony whereof I aflix my signature.

THOMAS JOSEPH STURTEVANT.

Commissioner of Patents,

Washington, D. 0.

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