US130265A - Improvement in machinery for millstone dressing - Google Patents
Improvement in machinery for millstone dressing Download PDFInfo
- Publication number
- US130265A US130265A US130265DA US130265A US 130265 A US130265 A US 130265A US 130265D A US130265D A US 130265DA US 130265 A US130265 A US 130265A
- Authority
- US
- United States
- Prior art keywords
- improvement
- machinery
- tool
- shaft
- dressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004575 stone Substances 0.000 description 8
- 230000037250 Clearance Effects 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000414 obstructive Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
Definitions
- Wit am x /g/Z A d a (f f@ fm UNITED STATES PATENT l* OFFICE.
- a in the drawing represents the bed of the machine.
- B is a sliding frame resting thereon.
- This sliding frame B is composed Of a transverse front bar, a, of end pieces b b, and of a horizontal shaft, C. rlhe end pieces t in- .to slots or grooves at the ends of the bed A,
- the shaft G has its bearings in the pieces b, and carries at one or vboth ends a pinion or pinions, e, whose teeth match into a toothed rack, f, formed on one of the caps d,
- Aratchet-wheel, g is mounted upon the shaft C, and is in connection with a pawl, h, that is pivoted to a plate, i, swinging on the shaft C.
- a plate i, swinging on the shaft C.
- the rod j is carried up to swing the plates i the pawl h is made to act on the ratchet-wheel, turning the shaft C, and causing the frame B to move forward, owing to the contact of the pinion @with the stationary rack I f.
- the carriage D is composed of the base fm, which has the ears that embrace the supports a and C, and of an upright post, n, which contains the bearings of the operating-arbor o and crank-arbor p, both of which arbors are connected by gearing r.
- the crank of the arbor p is, by a pitman, s, connected with the reciprocating slide and tool-holder E, which is guided between rails t t on the face of the post u.
- the pitman s ts through a projecting ear of the slide E, and carries springs u u', which bear against opposite sides of said ear, as is clearly shown in Fig. l. rjhe effect of the tool on the stone will, consequently, be gentle, and not in shocks that would injure the tool, and cause the stone to become splintered or unevenly reduced.
- the tool F is, by a screw, V, fastened to the lower part of the slide E, the screw passing through a detachable block, w, and, through a slot in the tool, into theV slide.
- the upper end of the tool bears against a detachable block, y, which is, by means of a screw or bolt, m, fastened to the face of the slide E.
- the contiguous faces of the slide and block y are serrated, so that the latter will be vertically sustained on E, and constitute a reliable bearing for the tool F during its descent against the stone.
- the frame D is drawn sidewise, to cause a groove to be cut, and at the end of its motion the pawl is brought against the ratchet-wheel to feed the frame B ahead, and cause a new groove to be cut during the subsequent side movement of D.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
A. WOODWGRTH.
Improvement in Machine for'Mi|l'-Stone Dressing.
No.130,265.j I Petented Aug. 6,187.2`r
Wit am: x /g/Z A d a (f f@ fm UNITED STATES PATENT l* OFFICE.
ALFRED wOODwORTII, OE OAMRRIDGE, NEw YORK, AssIeNOR To wILLIAM P. HARWOOD, OF SAME PLAGE.
IMPROVEMENT IN MACHINERY FOR MILLSTONE DRESSING.
Specification forming part of Letters Patent No. 130,265, dated August 6, 1872.
' of tool-stock, through which the pitman passes,
so that the upper spring will raise picker and take up stock, while the lower one will prevent its return to the recess of stone, and any obstruction to a proper clearance thereof.
A in the drawing represents the bed of the machine. B is a sliding frame resting thereon. This sliding frame B is composed Of a transverse front bar, a, of end pieces b b, and of a horizontal shaft, C. rlhe end pieces t in- .to slots or grooves at the ends of the bed A,
which slots or grooves are, preferably, formed by caps el d, fastened over the ends Of the bed, as shown. The shaft G has its bearings in the pieces b, and carries at one or vboth ends a pinion or pinions, e, whose teeth match into a toothed rack, f, formed on one of the caps d,
as is clearly shown in Fig. 3. Aratchet-wheel, g, is mounted upon the shaft C, and is in connection with a pawl, h, that is pivoted to a plate, i, swinging on the shaft C. There may be two such plates, i, one near each end of the shaft C, as shown, and both connected by a rod, j. When the rod j is carried up to swing the plates i the pawl h is made to act on the ratchet-wheel, turning the shaft C, and causing the frame B to move forward, owing to the contact of the pinion @with the stationary rack I f. When the frameB has reached the limit of its forward motion the pawl must be thrown oif the ratchet-wheel in order to permit the frame B to be moved back again, as otherwise the pawl, gearing into the ratchet-wheel, prevents the shaft C from turning, and locks the frameB on the rack j. On the bar a and shaft C is supported a carriage, D, which can be moved laterally on its supports, and is provided with a suitable handle,l, whereby it can be moved to one side or the other. The carriage D is composed of the base fm, which has the ears that embrace the supports a and C, and of an upright post, n, which contains the bearings of the operating-arbor o and crank-arbor p, both of which arbors are connected by gearing r. The crank of the arbor p is, by a pitman, s, connected with the reciprocating slide and tool-holder E, which is guided between rails t t on the face of the post u. The pitman s ts through a projecting ear of the slide E, and carries springs u u', which bear against opposite sides of said ear, as is clearly shown in Fig. l. rjhe effect of the tool on the stone will, consequently, be gentle, and not in shocks that would injure the tool, and cause the stone to become splintered or unevenly reduced.
The tool F is, by a screw, V, fastened to the lower part of the slide E, the screw passing through a detachable block, w, and, through a slot in the tool, into theV slide. The upper end of the tool bears against a detachable block, y, which is, by means of a screw or bolt, m, fastened to the face of the slide E. The contiguous faces of the slide and block y are serrated, so that the latter will be vertically sustained on E, and constitute a reliable bearing for the tool F during its descent against the stone. During operation, while the tool reciprocates, the frame D is drawn sidewise, to cause a groove to be cut, and at the end of its motion the pawl is brought against the ratchet-wheel to feed the frame B ahead, and cause a new groove to be cut during the subsequent side movement of D.
Hav ing thus described my invention, I claim as new, and desire to secure by Letters Patent- The combination, with apicker-stock, E, having front stud, of a driving-crank pitman, S, passing through and having springs u u', one on each side of said stud, as and for the purpose described.
ALFRED WOODWORTH.
Witnesses:
J AMEs F. HALL, WARREN NORTON, J R.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US130265A true US130265A (en) | 1872-08-06 |
Family
ID=2199683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US130265D Expired - Lifetime US130265A (en) | Improvement in machinery for millstone dressing |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US130265A (en) |
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0
- US US130265D patent/US130265A/en not_active Expired - Lifetime
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