US495099A - Garten - Google Patents

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US495099A US495099DA US495099A US 495099 A US495099 A US 495099A US 495099D A US495099D A US 495099DA US 495099 A US495099 A US 495099A
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    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/02Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/06Crushing or disintegrating by disc mills with coaxial discs with horizontal axis


(No Model!) 2 Sheets-Sheet I.
No. 495,099. Patnted'Apr. 11, 1893.
J a far 5r 949,952 7mm THE NORRlS vnzns c0. PHOTOLH'HOU WASHINGTON. a. c.
(No Model.) 2 Sheets-Sheet 2.
No. 495,099. Patented Apr. 11, 1893.
W) 512.61 Z May/27m. I f I fifowg 9% W UNITED STATES PATENT OFFICE.
SPECIFICATION forming part of Letters Patent No. 495,099, dated April 11, 1893.
Application filed February 20, 1892- Serial No. 422,250. (No model.)
To all whom it may concern: being held securely in place by the engage- Be it known thatwe,OHARLEs MORGAN and ment of the hubs, b, b, and. spout, 17 with MATHIAS REDLINGER, J12, both citizens of the the walls of the box. Within the shells B, United States of America, residing at Free-' B, are two conical grinding cones, D, D, 5' port, in the county of Stephenson and State mounted on a horizontal shaft, E, which is of Illinois, have invented certain new and usejournaled in the hubs, b, b. In the upper ful Improvements in Ooitee-Mills, of which surfaces of the shells, B, B, are formed openthe following is a specification. ings, O, O, for the admission of cofiee to the Our invention relates to improvements in spaces between the cones and shells, and a [0 coffee mills and particularly in mills of the horizontal partition, 0, lies within the box class known as side mills which are adaptand is so formed and placed as to tit closely ed to be fastened against the wall or other about the outer margins of these openings in vertical support. the manner illustrated in Fig. 4. The space The invention is fully described and exabove the partition, 0, is intended to be filled I5 plained in this specification and shown in the with coffee, admitted through the opening at accompanying drawings, in which the top of the box, and the supply thus af- Figure 1 is a central vertical section of a mill forded may be ground as required.
embodying our improvements, the plane of For the purpose of keeping the coffee in section being through the line, a;0c, Fig. 4. the box in as good condition as possible, we
20 Fig. 2 is an elevation of one of the grinding prefer to provide the box with a screw threadcones of the mill. Fig. 3 is a horizontal seced neck, N, and a cap, N, also screw threaded tion through the line a:'0c, Fig. 1, the view toengage the neck. being downward. Fig. 4 is a horizontal sec- The grinding cones are provided with a tion through the line o -39, Fig. 1, the view dress, such asis illustrated in Fig. 2, the grind- 2 5 being downward. Figs. 5 and 6 are vertical ing teeth being formed by means of annular sections through the line x m Fig. 1, the grooves G, and approximately radial grooves, views being in opposite directions and show- G, placed at suitable intervals and of such ing the inner faces of the grinding cones; and comparative depths as to form the largest Fig. 7 is a vertical section through the line teeth near the apex, and the finer ones near 30 m ac Fig. 1, showing the connection of the the base thereof. The radial grooves are at crank with the shaft of the mill and the reguevery point slightly deeper than the corre- 8o lating screw. sponding annular grooves, so that the ground In these views, A is a preferably rectangular material has constant opportunity for escape box provided with an opening at its top for toward the base or margin of each of the 35 the admission of coffee, and having a back cones. The shells are dressed to correspond piece whose edges extend above and below with the dress of the cones, the teeth of the the body of the box and are formed with inner surfaces of the shells being so placed screw holes forthe attachment of the box to that the teeth of the cones pass between them awall or other vertical support. In the lower in the manner illustrated in section, Fig. 1.
40 part of the box are secured two conical grind- The two grinding cones are so formed with ing shells, B, B, provided respectively with relation to the horizontal shaft, E, on which hubs, b, b, which enter corresponding holes they are mounted as to rotate therewith, the in the front and rear walls of the box. The shaft being provided with lugs, e, e, Fig. 5, edges of the bases of the shells are in close entering corresponding notches in the inner 5 contact, and each of them is provided at its face of the shell, D, and the cone, D,-being lowermost point with a downward projection, provided with a lug, d, entering a longitudithe two projections, b b forming together a nal groove in the shaft, E, as shown in Figs. discharge spout, whose end lies in a suitable 2 and 6. opening in the bottom of the box, the shells In the longitudinal groove in the shaft, E,
lies a rod, E, formed at its inner end into a flat coil encircling the shaft and lying in contact with the inner end of a hub formed on the inner face of the cone, D. The outer end of the rod,E, is screw threaded and provided with a nut by means of which the rod may be drawn outward, and between the nut and the face of the box, the shaft is encircled by the hub, F, of a crank, F, adapted to turn the shaft and the cones, B, B, the hub being provided with a lug, f, Fig. 7, entering the longitudinal groove in the shaft. The nut is provided with a locking :device adapted to prevent its accidental rotation with reference to the shaft, but this locking device forms no part of our present invention. It is evident, that if the rod, E, and the coil, E on its inner end be drawn outward by the rotation of the nut, the cone, D, must be correspondingly drawn outward and the space between the two cones increased, thereby decreasing the spaces between the cones and the shells. The fineness to which material is ground by the mill may thus be regulated at will by means extremely simple and not liable to get out of order.
On the lower surface of the bottom of the box are parallel cleats, A, A, formed with recesses in their upper inner margins, and between these cleats is securely held the upper end of a cup, K, provided with an outward marginal flange adapted to enter the recesses in the cleats. The cup is made oval in form, as shown in Fig. 3, so that when in one position, it may be readily entered between the cleats, but when rotated about ninety degrees so as to bring its longer axis at right angles to thecleats,itispressedfirmlybetween them,and its flange is pressed closely against the lower face of the bottom of the box. This cup forms a receptacle for the ground coffee, discharged by means of the spout, b through the bottom of the box, and it may evidently be readily put into place or detached, and when in place is perfectly secure. We have found in practice that if the cup, K, be made of tin or other cleats, it may be pressed directly inward between the cleats, the slight compression of the mouth of the cup being sufficient to give the necessary tension for holdingit in place. Our invention in this regard may therefore be stated broadly as the combination with the cleats, of a sheet metal cup having a diameter slightly greater than the space between the cleats. The elliptical cup evidently has but one diameteror axis meeting this requirement, while the circular cup has every diameter of the required length, but both forms come within the statement of this paragraph.
Having now described and explained our invention, what we claim as new, and desire to secure by Letters Patent, is-
1. The combination with the box and the grinding shells mounted therein, of the shaft, E, formed with a longitudinal groove, the cones, D, D, mounted on the shaft and rotating therewith, the rod, E, lying within the groove in the shaft and formed at its inner end with a ring in contact with the inner face of the cone, D, and a nut engaging the screw threaded outer end of the rod, E, and adapted to regulate the space between the cones and 1 CHARLES MORGAN. MATHIAS REDLINGER, JR. Witnesses:
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