US802842A

US802842A - Crushing-machine.

Info

Publication number: US802842A
Application number: US17120303A
Authority: US
Inventors: Arthur Cameron
Original assignee: NAT DRILL AND Manufacturing Co
Current assignee: NATIONAL DRILL AND MANUFACTURING Co; NAT DRILL AND Manufacturing Co
Priority date: 1903-08-29
Filing date: 1903-08-29
Publication date: 1905-10-24
Anticipated expiration: 1922-10-24

Description

PATENTED OCT. 24;, 1906.

A. GAMERON.

GRUSHING MACHINE.

APPLIOATION FILED AUG. 2a. 1903.

8 SHEBTS-SHEET 1.

No. 802,842. PATENTEI) OCT. 24, 1905. A. CAMERON.

' GRUSHING MACHINE.

APPLICATION FILED 18116.29, 1903.

3 SHEETS-SHEET 2.

qflfhymd Q C t/mum M4 44% Y 41, e 5; 7g 5 PATENTBD OCT. 24, 1905.

A. CAMERON. GRUSHING MACHINE.

APPLICATION FILED AUG. 29, 1903.

3 SHEETS-SHEET 3.

ARTHUR CAMERON, OF CHICAGO, ILLINOIS, ASSIG-NOR TO NATIONAL DRILL AND MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

GWUSHIINQI IIWAOI-HNEI Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed August 29, 1903. Serial No. 171,208.

To a whom-it may concern.-

Be it known that LARTHUR CAMERON. acitizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Crushing-Machines, of which the following is a specification.

My invention relates to crushing-machines in which a reciprocating jaw is arranged to cooperate with a stationary crushing-jaw for crushing rock, ore, and the like, the reciprocating jaw being operated by a pitman, with which it has a jointed connection, and the pitman being controlled by swinging arms or links having jointed connection with the pitman and tied to swing about a transverse axis forward of the reciprocating crushing-jaw.

Objects of my invention are to secure rapid and eflicient action, to reduce the power employed for operating the reciprocating crushing-jaw, to produce a grinding crushing action, to provide improved means for varying the distance between the axis about which the arms swing and the axis about which they have a jointed or pivotal connection with the pitman, to balance the reciprocating crushing-jaw in asimple and efficient way, and to provide a generally-simplified construction of crushingmachine.

In the accompanying drawings, Figure 1 is,

on line 4 4C in Fig. 2. Fig. 5 is a detail section on line 5 5 in Fig. 3.

A indicates the body-frame of the machine, and B denotes the stationary crushing-jaw arranged at what may be termed the forward end of the machine. The reciprocating crushing-jaw C is arranged back of and opposite the stationary crushing-jaw and is provided with or secured to a rearwardly-ex'tending arm D, which is, in effect, an arm on the said jaw. The rear end of the jaw-arm D has a jointed or pivotal connection with the pitman E, which is operated by an eccentric l on a rotary power-driven shaft, as usual, said shaft being-indicated byadotted line in Fig. 1. The pitman preferably extends upward from the axis of the driving-shaft and is controlled by swinging arms or links F, having their rear end portions joint-connected with or pivoted to the pitman and having their forward end portions tied to swing about the axis of a horizontally and transversely arranged shaft G at a point forward of the reciprocating crushing-jaw. The reciprocating crushingjaw is supported to oscillate about a transverse horizontal axis located between the upper and lower portions of the jaw and susceptible of a forward-and-back reciprocating movement during operation, it being understood that this axis is between the upper and lower portions of the jaw or intermediate or substantially intermediate of the upper and lower ends of the jaw, in contradistinction to a crushing-machine in which the lower end of the jaw is sustained by a pivotal support arranged for forward-and-back reciprocating movement.

By arranging the axis about which the jaw oscillates as in this application the jaw can be balanced or substantially balanced so as to be susceptible of easy operation, and to avoid all tendency on the part of its shifting pivotal support to cramp or bind and by thus arranging the jaw to oscillate about such axis in contradistinction to a jaw which vibrates about a pivot at its lower or upper end I am enabled to secure more efficient crushing action upon the material within a hopper or space between the two jaws, the crushing action upon the mass of material between the jaws being rapid and effective and practically continuous. I also permit the axis about which the reciprocating jaw oscillates to reciprocate along an incline which slopes downwardly toward the stationary crushing-jaw, whereby a grinding action is attained, and as amatter of further improvement I form said incline along an upward curve arranged to secure the necessary degree of inclination and preferably formed on the arm of a circle having its center below the reciprocating crushing-jaw. As

one way in which the reciprocating jaw can secured to the body-frame, and each of such bearings has its upper surface adapted to provide a curved bearing-face 2, which slopes downwardly toward the stationary crushingjaw. As shown in Figs. 2 and 4, these bearings I are arranged at the lower ends of vertical slots or openings 3 in opposite sides of the body-frame, and with such arrangement the journals or pivots formed by end portions of the shaft H extend through the slots, which are of a width to permit these pivots to reciprocate back and forth upon the inclined bearing-faces 2, it being seen that during operation the pivots or journals formed by the shaft H will also rock upon the inclined bearingfaces 2. It is obvious, therefore, that the reciprocating jaw is, in effect, provided with downwardly-curved bearing-faces,which rock and shift upon the inclines formed by the bearing-faces 2, and that, broadly considered, the bearing-faces 2 are, in effect, a single bearing-face, which is divided into two portions for convenience of construction.

From the foregoing it will be seen that each bearing-surface 2 on the body-frame inclines downwardly and forwardly notwithstanding the fact that they are each curved and that the movable crushing-jaw is provided with bearings supported upon and adapted and arranged to traverse the bearing-surfaces 2.

The rod or shaft G is formed with cylindric end portions 4, constituting pivots or journals upon which forward end portions of the arms F are hung, whereby when the shaft G is held stationary the arms F can turn thereon, and thereby swingabouttheaxisofsuchshaft. The portion 5 of shaft G extending between its journal portions 4: is enlarged to form an eccentric which engages in a bearing K, secured to the forward portion of the body-fram e, as by bolts 6 or by any other suitable mechanical device. As portion 5 of the shaft is eccentric to an axis passing through its journal portions 4, the latter are, in effect, crank or wrist pins upon opposite ends of the main portion 5 of the shaft, and hence by rotative adjustment of the shaft Gr its axis about which the arms F swing can be adjusted so as to vary the distance between such axis and the axis of the jointed or pivotal connection between the arms and the pitman, it'being observed that this variation is essential for different kinds of work.

After the shaft G has been rotatively adjusted it can be rigidly secured to the bearing K in any suitable way-as, for example, by setscrews 7, arranged to extend through the hearing K and engage in notches or recesses 8 in the shaft. In order to permit the shaft G to be easily adjusted, it can have squared or polygonal end portions 9, which can be engaged by a crank or crank-handle.

The arms F can be pivotally attached to the any suitable or desired way the hinge or pivotal connection can be made between the jaw arm and the pitman, it being preferable to connect the arm D with the pitman at a point nearer the eccentric than is the point of connection between the pitman and the swinging arm F.

What I claim as my invention is- 1. In a crushing-machine, a crushing-jaw supported for oscillatory motion about an axis arranged between its upper and lower portions and reciprocative laterally to the plane of the jaw-face and along a line inclining downwardly and forwardly; a pitman with which the jaw has a jointed connection; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the said jaw.

2. In a crushing-machine, a crushing-jaw supported for oscillatory motion about an axis arranged between its upper and lower portions and reciprocative laterally to the plane of the jaw-face and along a curved line inclining downwardly and forwardly; a pitman with which the jaw has a jointed connection; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the said jaw.

3. In a crushing-machine. a crushing-jaw supported for oscillatory motion about an axis arranged between its upper and lower portions and reciprocative laterally to the plane of the jaw-face and along the arc of a circle having its center below the jaw; a pitman with which the jaw has a jointed connection; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the jaw.

I. In a crushing-machine, a crushing-jaw supported for oscillatory motion about a laterally-reciprocating axis arranged between its upper and lower portions, the jaw being to such end provided with a curved bearingface supported to rock upon and traverse an inclined supporting-face which slopes downwardly and forwardly; a pitman with which the jaw has a jointed connection; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the jaw.

5. In a crushing-machine, a crushing-jaw having a rear arm rigid therewith and supported for oscillatory motion about an axis arranged between its upper and lower portions and reciprocative laterally to the plane of the jaw-face along a line inclining downwardly and forwardly; a pitman with which the jaw-arm has a jointed connection; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the jaw.

6. In a crushing-machine, a crushing-jaw having a rear arm rigid therewith and supported for oscillatory motion about an axis arranged between its upper and lower portions and reciprocative laterally to the plane IIO cos, sea

of the jaw-face along the arc of a circle having its center below the jaw; a pitman with which the jaw-arm has a jointed connection and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of the jaw.

7. In a crushing machine, a stationary crushingjaw and a reciprocating crushingjaw; a pitman with which the jaw has a jointed or pivotal connection; swinging arms or links having jointed connection with the pitman and arranged 'to swing about a transverse axis forward of the stationary jaw; and an adjustable eccentric device for varying the distance between said axis and the jointed or pivotal connection between the swinging arms and the pitman.

8. In a crushing machine, a stationary crushingjaw and a reciprocating crushingjaw; a pitman with which the reciprocating crushing-jaw has ajointed connection; swinging arms or links having jointed or pivotal connection with the pitman and supported to swing about an axis forward of the stationary crushing-jaw; and an adjustable eccentric device comprising a bearing forward of the stationary crushing-jaw, and a rotatively-adjustalole shaft having journal portions upon which the swinging arms are hung and an eccentric portion engaging the said bearin 9. In a crushing machine, a stationary crushing-jaw; & reciprocating crushing-jaw arranged opposite the stationary jaw and having a rear arm; a pitman with which said jawarm has a jointed or pivotal connection; swinging arms or links having jointed or pivotal connection with the pitman; a bearing on the body-frame forward of the stationary jaw; and a rotatively-adjustable shaft having journal portions upon which the swinging arms are supported, and an eccentric portion 5 intermediate of said journal portions and engaging in said bearing; and suitable means for locking said shaft in its adjustment.

10. In acrushing-machine, the body-frame provided at each of two opposite sides with a bearing-surface inclining downwardly and forwardly; a pitman; a movable crushing-jaw having a jointed connection with the pitman and provided between its upper and lower portions with bearing members supported to traverse and rock upon the said inclined bear ing-surfaces on the body-frame; and swinging arms or links having jointed connection with the pitman and tied to swing about an axis forward of said jaw.

ARTHUR CAMERON.

Witnesses:

S. A. MOOARTNEY, H. ULRIN.