US517636A

US517636A - Ash-sifter

Info

Publication number: US517636A
Authority: US
Publication date: 1894-04-03
Anticipated expiration: 1911-04-03

Description

` UNITED vSTATES PATENT OFFICE.

LoUIsA YoUNGQUIsT, FRED L.` N. MEHETENsANU AUGUST YoUNGQUIsT,

' or MILWAUKEE, WISCONSIN.

ASH-SIFTER.

SPECIFICATION forming part .of I Letters Fatent N0. 517,636, dated April 3, 1894. i

Application filed June 21,1893. Serial No. 478,387. No model.)

at Milwaukee, in the county of Milwaukee and State of'Wisconsin, have invented a new and useful Ash-Sifter, of which thefollowin'g is a specification.

The invention relates to improvements in ash sifters.-

The object of the present invention is to improve the construction of rotary ash sifters, to prevent the escape of dust during the operation of sifting, and to enable the cinders to be readily removed when the operation of sifting is completed.-

The invention consists in the lconstruction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended.

In the drawings: Figure lis a perspective View of an ash sifter constructed in accordance with this invention.` Fig. 2 is a transverse sectional view. Fig. 3 is a detail perspective view of the cylindrical sifter detached, the removable section thereof being slightly separated. Fig. l isa detail perspective view of one of the slides. Fig. 5 is a detail sectional view of one side of the casing, illustrating the manner of securing the journal portions of the shaft in the bearing slots.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

. 1 designates a box or casing, having a hinged cover 2, and provided at its sides with vertical slots 3, receiving journal portions of a horizontal shaft 4, which terminates in an exterior crank-handle 5, and which carries a cylindrical sifter 6. On the outer face of each side, at opposite sides of the vertical slots, are secured stationary plates 7, having their inner portions bent outward slightly to form vertical waysfor the reception of aremovable slide 8, which are adapted to retain the shaft against verticalmovement and t-o prevent the escape of dust during the operation of sifting.' The lower end of the slide is provided with 5o a curved recess 9, to tit the shaft, and the upper endof the slide is provided with an inward L.shaped bend 10 forming a rectangular portion which extends over the upper edge of the side of the box or casing to close the top of the slot. The slides are adapted to be readily withdrawn from the ways of the box or casing to enable the cylindrical sifter to be removed. Y,

The box or casing may be of any desirable construction and may consist of an ordinary barrel, and the sieve is retained against longitudinal movement by collars 11. The front of the box or casing may be provided with a pane of glass to enable the operator to see withinthe casing and inspect the sifter without opening the cover.

The cylindrical sieve 6 is provided Ywith solid circular heads 12, and it has a detachable section or cover 13, which is secured in place during the operation of siftingby hooks 14, and eyes 15. The hooks are pivoted to the outer-faces of the heads 12, and the eyes project from the ends of the removable section orcover of the sieve. The removable section or cover 13 of the sieve is strength- .ened at Aits edges by metal strips, and the body of the sieve is provided with longitudinal grooves l16, to receive the edges of the removable section or cover. The longitudinal grooves 16, are formed by metal strips secured to the edges of the body of the sieve,'and the removable section or cover is provided at itslongitudinal edges with exterior ribs 17, to enable it to be readily grasped for removal.

It will be seen that the sifter is simple and comparatively inexpensive in construction, that dust is effectually prevented from escaping during the operation lof sifting, and that the cinders may be readily removed after sifting. A Y

Changes in the form, proportion, and the minor details of construction may beresorted to without departing from the principle' or sacrificing any of the advantages of this invention.

What we claim is In asifter, the combination of acasing provided at opposite sides with vertical slots,

plates secured to the casing at opposite sides l of the slots and forming ways, a shaft jour- Ioo naled on the easing at the bottom of the slots, our own We have hereto aixed our signatures xo a rotary sieve carried by the shaft, and slides in the presence of two Witnesses. arranged in the Ways and provided at their lower ends with curved recesses and pro vided Y1? 5 at their upper ends with L-shaped anges AUGUST Y'OUNGQUIST engaging the upper edges of the casing and closing the tops of the slots, substantially as Witnesses:

described. OSCAR SoHLoEMILoH,

In testimony that we claim the foregoing as FANNIE GORTZEN.