US1692884A - Crushing, grinding, and refining machine - Google Patents

Description

Nov. 27, 1928. 1,692,884

5. BRAMLEY-MOORE CRUSHING, GRINDING, AND REFINING MACHINE Filed April 6, 1928 :5 Sheets-Sheet 1 4. fits 35 6 Him a e q Nov. 27, 1928. 1,692,884

- s. BRAMLEY-MOORE CRUSHING, GRINDING, AND REFINING MACHINE Filed April 6, 1928 5 Sheets-Sheet .2

Nov. 27, 1928.

Filed April 6, 1928 v 5 Sheets-Sheet 5 5 1 0 M 44 3/ 5 7: 3 n F w J iv Z a m- 2 4 1 A attoz M11 Patent Nov. 27, 1928.

PATENT OFFICE.

' SWINFEN BRAMLEY-MOORE, OF WHITE PLAINS, NEW YORK.

CRUSHING, GRINDING, AND REFINING MACHINE. v I

Application filed April 6, 1928. Serial No. 267,992.

' The present invention relates tb crushing, grinding and'refining machines, such as are used for crushing, grinding or refining chocolate, paint, printers ink and other materials, and the general object of the-invention is to provide a machine of that kind which is improved throughout to increase the eiiiciency thereof.

Another object of the invention is the pro-- vision of novel crushing, grinding or refining elements. 1

A further object is to provide novel means for mounting the grinding elements and to provide novel means for applying pressure to said elements.

A still further object is to provide novel means for feeding or directing the material to the grinding elements.

The invention has for anotherobject the provision of novel mechanism for Controlling and regulating the pressure of the grinding line 22 of Fig. 1.

elements, which may beoperatedduring the operation of the machine.

With the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention. I

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a vertical median section of the machine, portions being shown in elevation, and portions being omitted and broken away for sake of clearness.

Fig. 2 is an enlarged sectional detail on the Fig. 3 is a plan or face view ofone of the grmdmg units on an enlarged scale.

Fig. 4 is a sectional detail on the line 4 -4 1 of Fig.3.

Fig. 5 is a detail View illustrating the dynamometer for indicating the pressure.

The casing comprises the cylindrical body 11 and end plates 12 and 13, said-end plates having the inlets 14 near the top of the casing which is disposed with its axis horizontal, and the endplates have the hoppers 15 into which the material is dumped to fiow through the inlets into the casing. A water jacket 16 surrounds the body '11 for the circulation of water therein to cool the body, or conversely for the circulation of a heating medium.

The body 11 has a liner 17, which may be composedof sections or arcuate plates, and

said liner maybe of chilled cast iron, carb'orundum, tool steel or other suitable material to provlde an effective grinding surface. The inner surface of the liner 17 is provided with small ribs 18 which are preferably parallel face of the liner.

1 The end plate 13 has a normally closed outlet 19 near the bottom of the casing, through which the material may be discharged.

. The end plate 12 has a bearing 20 extendin within the casing centrally thereof, an through which a tubular or sleeve shaft 21 is ournaled, and a shaft 22 extends through the shaft 21. A wheel 23 is secured on the inner terminal of the shaft 21 between the end plates of the casing to move the grinding elements along the grinding surface of the easmg.

v In order "to mount the grinding elements on the wheel 23, levers 24 are provided which have the short arms 25 projecting beyond the periphery of the wheel, and said levers are in inwardly and provided with rounded termlnals 28 working within slots 29 in a disk 30 secured-on the inner terminal of the shaft 22, so that the levers 25 may be swung on their pivots. by the rotation of, the disk 30 relatively to the wheel 23.

The grinding elements are arranged in groups, and a plurality of grinding units are provided each including a group or set of grinding elements.

The lever arms 25 have bearings 31 through which rods 32 extend parallel with the axis of the casing and located near the grinding surare bent into bearings 33 embracing rods 35 parallel with the rod 32. There are two rods 35 in each grinding unit, and a pair of cross members 36 is mounted for oscillatory motion on each (rod 35.

The members 36 of each pair have notches or recesses 37 extending through more thanone-half of a circle, in which the grinding elements 38 are fitted. Said grinding elements are 0 circular cross-sect1on, as shown,

and may be moved endwise into and out of the recesses 37 in assembling and separating the parts. The grinding elements or rods 38 may be of tool' steel, 'carbo'rundum metal or other suitable materiahand present rounded grinding surfaces to the grinding surface of the liner 17 for effectively grinding, crushing or refining the material. The grinding pivot axis to enable the grinding elements to pass across lumps or clods of material with a yielding action. Thus, either grinding element of a pair may move awayfrom the liner 17, and both grinding elements are under substantially equal pressure. The grinding elements 38 are disposed end to end throughout the length of the body 11, as seen in Fig. 1.-

In order to retain the grinding elements 38 in place,-they are provided with apertures 39 therein, to receive the terminals 40 of wire retaining elements having the loops 41 between said terminals fitted on the rods 35.

When the- wire fretainifigelements 40,41 are disengaged from the grinding elements, such elements may be turned in'the recesses 37 and the retaining elements again engaged with said grinding elements, in order that the grinding elements may be used for an extended period of time. Thus, after the elements 38 wear downfiat, they may be loosened and turned to present other curved surfaces thereof to the liner, and this may be --repeated several times until the grinding elements are wornaway. I

In order to feed or direct the material be tween the grinding elements 38 and the liner 17, feed or deflecting plates 42 are disposed in front of the grinding elements between the members 36, and are hingedly mounted in front of the corresponding grinding elements. The rearplate 42 of each pair has 'its forward edge bent into a. sleeve 42 loosely embracing the corresponding rod 35, and a rod 35 is mounted in each'pair of members 36 at the forward ends thereof and is loosely embraced by a sleeve 42 of the front plate 42. The plates 42 may thus turn on the rods 35, .35, and the rear edges of said plates contact with the grinding elements 38. As shown, wire springs 42" have coils embracing The machine is driven by a gear wheel 44 secured on the outer terminal of the shaft 21 and located within a housing 45 carried by the end plate 12, and a bearing 46 is carried by the housing 45' beyond the end of the shaft 21 in which a tubular or sleeve shaft 47 is mounted for rotation. The shaft 47 has a flange 49 between the bearing 46 and wheel 44 and an anti-friction thrust bearing 48 is disposed between the inner end of the bearing 46 and said flange 49, to take up the axial v thrust in one direction. The inner end of the shaft 47has a flange50 secured to the hub of the wheel 44, whereby the shafts 21 and 47 are driven by said wheel. The shaft 22 extends through. the shaft 47 as well as the shaft 21. v

The outer terminals of the shafts 22 and 47 are operably connected to obtain relative rotation thereof in order to regulate the pressure of the springs 33. For this purpose planetary gearing is housed within a case 51 including the cylindrical body 52 disposed between the heads or plates 53 and 54.- Bolts or tie rods 55 extend through said heads and have flanged washers 60 thereon bearing against the inner head 54 and overlapping an outstandin annular'flange 59 on the hub of a hand wheel 56 which is screw-threaded, as at 57, on the bearing 46.

The case 51 and hand wheel :56 thus have a swivel connection whereby they are free to rotate relatively to one another, and the case is movable longitudinally with the hand wheel. An anti-frictional thrust bearing 58 is confined between the head 54 and hub of the hand Wheel 56 to take up the end thrust opposite to that taken up by the bearing 48. Thebearing 48 takes up pressure from the shafts 21, 22 and 47, while" the bearing 58 takesup the opposite end thrust on said shaft. v The, head 54 isrotatable on the shaft 47, while the head 53 is rotatable on the sleeve 61 on the outer terminal of the shaft 22. The

sleeve 61 may be graduated to indicate thereon the position of the case51 andhand wheel 56 longitudinally of the shaft, it being apparent that, the marks on the sleeve 61 are covered up and exposed, respectively, as the case 5}1l is moved outwardlyand inwardly on the s a-fts.

The planetary gearing within the case 51 comprises sun gears 62 and 63 secured on the shafts 22 and 47 respectively, and planet respectively,

7 gears 64 and 65 meshing with the gears 62 1 rod 55.

The gears 64 and 65 have spiral or oblique teeth in reverse arrangement, and the teeth of the gears 62 and 63 are correspondingly arranged, so that the sliding movement of the gears 64, 65 with respect to the gears 62, 63, will result in relative turning movements of the shafts 22 and 47, 21. This action occurs with the parts stationary excepting for axial sliding motion, with the case .51 rotating with the shafts, or with the case stationary while the shafts are rotating. When the case 51 is slid longitudinally the sliding movement of the gears 64, 65 with reference to the gears 62, 63 will, by the helical angle of the gear teeth, tend to rotate the gears 62, 63 inopposite direction, thereby similarly turning the shafts 22 and 47, 21 relatively to one another.

In this manner, the shaft 22 is turned in the shaft 21 to turn the disk 30 relatively to the wheel 23, thereby swingingthe levers .25, and by adjusting the hand wheel 56 the levers 25 may be swung to force the rods 32 either outwardly or inwardly to increaseor decrease the pressure on the springs 33 and grinding elements 38. The levers 25 are non-yielding in any adjustment thereof, so that the mountings of the leaf springs 33 are non-yieldable, thereby maintaining the intermediate portions of the leaf springs at a fixed distance from the grinding surface of the casing in any particular adjustment of the levers.

The case 51 is free to rotate with the shafts, during the operation of the machine, but the case maybe held against rotation, in which event the gears 64, 65 will rotate abouttheir "own spindles, whereas, when the case turns with the shafts thegears 64, 65 rotate solid with the gears 62, 63.. The planetary gearing thus afiords effective means for obtaining relative rotation of the wheel 23 and disk 30, to regulate the pressure on the grinding elements, and the gearing operates with a minimum friction and resistance. I

The planetary gearing may also be employed as dyn amometer, either in connection with the crushing, grinding or refining machine, or in connection with any other'ma- T chine or between relatively rotatable shafts or inembers. Thus, as seen in Fig. 5, an arm 67 may be carried by the case 51, to which a suitable spring 68 is connected, and said arm cooperates with a suitably graduated scale 69. The case 51 has a tendency to be rotated in one direction with the shafts, which is re sisted'by the spring68. The greater the pressure or resistance is'between the. shafts, the greater will bethe force tending to turn the case 51 and arm 67, so that the "load is' indicated on the scale 69. It is thuspossible to use scale- 69 the pressure between the grinding-- elements 38 and grinding surface along which they move. Y

The grinding elements 38 are preferably of With this arcircular cross-section,but may be of square or other polygonal cross-section, in which event the .recesses 37 are of corresponding form. r

Having thus described the inventiom'what is claimed as new is 1. A machine of the character described comprising a cylindrical casing having a grinding surface therein, two shafts, a wheel on one shaft within the casing, levers carried by said wheel, a disk mounted'on-the other" shaft and operably connected with said levers, 8

grinding elements carried by said levers and working along said gr nding surface, andmeans operably connecting saidqshafts for rotating one with the other and for adjustmg them rotatably relatively to one another to swing said'levers relatively to said wheel and regulate the pressure on said grinding 1;

elements.

' 2. A machine of the character described comprising'a casing having a grinding surface therein, a tubular shaft entering the casing, a wheelsecured on said shaftwithin the casing, grinding elements carried by said wheel to work along said grinding surface,

a second shaft extending through said tubular shaft, and operative connection between said secondshaft and grinding elements to move said grinding elements along said surface, by j therotation of the second shaft relatively to the tubular shaft, and an operative connection between said shafts for turning the second shaft with the tubular shaft and adjusting the shafts rotatably relatively to one another.

3. A machine of the character described comprlsmg a casing having a grinding surface therein, a wheel mounted -for'rotation in said I casing, levers carried by said wheel, leaf springs connected between their ends with said levers, grinding elements connected with the end portions of said springs and working along 'sai 'd rinding surface, and means for swinging said levers relatively to said wheel to regulate the pressure on said springs and grinding elements.

4. A "machine of the character described comprising a casing having a grinding surface, and grinding means working within the casing including leaf springs, grinding elements carried byathe end v portions of'said the intermediate portions of the springs.

5.. A machineof the character described sin-' comprising a casing having a grinding J 7 face therein, a wheel mounted for rotation within the casing, non-yieldable adjustable members carried by the wheel, leaf springs mounted between their ends on said members, and grinding elements carried by the end portions of said springs and Working alongsaid surface.

6 .'A machine of the character described comprising a casing having a grinding surface therein, and grinding means rotatable within the casing and including carrier members having recesses, and rod-shaped grinding elements disposed in said "recesses and adapted to be positioned therein to present different surfaces thereof to said grinding surface.

7 A machine .of the character described comprising a casing having a grinding surface therein, a wheel rotatable within the casing, adjustable pressure members carried by said wheel,.carrier members hingedly connected between their ends with said pressure members, and having recesses in front and in rear of the hinge connections, and grinding elements in said recesses and working along said grindingsurface.

8. A machine of the character described comprising a casing having a grinding surface therein, a wheel rotatable inthe casing, adjustable members carried by the wheel, leaf springs mounted between their ends on said members, rods carried by the end portions of said springs, carrier members mounted between their ends on said rods, and grinding elements mounted in; said carrier members in front and in rear of said'rods.

9. A machine of the character described comprising a casing having a grinding surface therein, and a rotatable grinding means within said casing having grinding elements Working along said surface and feed plates in front of said elements to feed the material between said elements and surface.

10. A machine of the character described comprising a casing, a wheel rotatable therein,

' carrier members mounted on said wheel and having recesses, grinding elements disposed in said recesses, rods carried by said members and feed plates hingedly mounted on said rods infront of the grinding elements and extending rearwardly to said elements to direct the material between sa d elements and casing.

11. A machine of the character described comprising a casing having a grinding surface, a wheel mounted for rotation in said casing, levers carried by said wheel, means for swinging said levers relatively to said wheel, rods carried by said levers, leafsprings mounted between their ends on said rods, carrier members hingedly mounted be-" tween their ends to the end portions of saidsprings and having recesses in front and in rear of the hinge connections, and rod-like grinding elements disposed insaid recesses and working along said grinding surface.

12.151 machine of the character described comprising a casing having a grinding surface, a wheel mounted for rotation in said caslng, levers carried by said wheel, means for swinglng said levers relatively to said wheel, rods carried by said levers, leaf springs mounted between their ends on said rods, carrier members having front and rear recesses, rod-like grinding elements disposed in said recesses and-working along said grinding surface, rods carried by said carrier members in front of said grinding elements, the rear rods being hingedly mounted on the end portions of said springs, and feed plates hingedly mounted on said rods and extending rearwardly to said grinding elements.

13. A machine of the character described comprising a cylindrical casing, two shafts, a

wheel on one shaft within the casing, levers carried by said wheel, grinding elements carried by said levers and working within said casing, means for turning said shafts with reference to one'another, and operative connections between the other shaft and said levers to regulate the pressure on' said elements by the relative turning adjustment of said shafts.

14. A machine of the character described comprisin a casing having a grinding: surface therein, a wheel mounted for rotation within the casing, adjustable members car;

ried by said wheel, leaf springs mounted bements carried by said carrier members in front and m rear of the huge connections and working along sa1d grlndlng surface.

15. A machine of the character described comprising a casing having a grinding surface, two shafts, a member secured to one shaft within said casing, grinding elements mounted on said member to work along said surface, operative connections between the other shaft and said'elements to apply pressure to said elements by relative rotation of said shafts, and gearing connecting said shafts for rotating onewith the other and including relatively slidable spiral gears forsure to said elements by relative rotation of Said shafts, and planetary gearing connecting said shafts for the rotation of one shaft with the other and including relatively slidable spiral gears for rotating one shaft relatively to the other.

17. A machine of the character described tween their ends on said members, carrier members hingedly connected with the end a portions ofsaid springs, and grinding elecomprising a casing having a grinding surface two shafts, a member secured to one shaft within said casing, grinding elements mounted on said member to work along said surface, operative connections between the other shaft and said elements to apply pressure to said elements by relative rotation of said shafts, and planetary gearing including spiral sun gears rotatable with said shafts and spiral planet gears rotatable one with the other and meshing with the sun gears, the sun and planet gears being slidable longitudinally of the shafts relatively to one another for turning one shaft relatively to the other.

18. A machine of the character described comprising a casing having a grinding surface, two shafts, a member secured to one shaft within said casing, grinding elements mounted on said member to work along said surface, operative connections between the other-shaft and said elements to apply pressure to said elements by relative rotation of said shafts, a case rotatable and slidable on said shafts, spiral sun gears secured on said shafts spiral planet gears rotatable one with the other, carried by said case and meshing with said sungears, and means for sliding said case on said shafts.

In testimony whereof I hereunto afliX my signature;

SWINFEN BRAMLEY-MOORE.

Images