US315247A - Slate-shaving machine - Google Patents

Slate-shaving machine Download PDF

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US315247A
US315247A US315247DA US315247A US 315247 A US315247 A US 315247A US 315247D A US315247D A US 315247DA US 315247 A US315247 A US 315247A
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slate
roller
bar
shaving
rack
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work

Definitions

  • t may concern: y,
  • FIG. 2 is a vertical longitudinal section of the same.
  • Fig. 3 is avertical section on the line w :c of Fig. 2
  • Fig. ⁇ 4 is a detail view ofthe double-threaded sleeve.
  • Fig. 5 is a cross-section of the slide-frame and of the rack bar and pins thereon.
  • Fig. 6 is a plan view of the complete machine.
  • Fig. 7 is a central vertical section of the same, on theline y y, Fig. 6; and
  • Fig. 8 is a front view of the rod Q and its attachments.
  • This invention relates to improvementsin machines for shaving or reducing the thickness of slabs or plates of slate or other material; and it consists in the construction and novel arrangement of parts hereinafter fully described, and pointed out Ain the appended claims.
  • A represents the horizontal bed-frame of the machine, supported on the legs a a, which are connected near their lower ends by the longitudinal beams a a', up'on which two of theactuatingshafts of the machine have their bearings, as shown.
  • a A are opposite standards rising from the center of the side beams of the bed-frame.
  • B B are transverse rollers, of rubber or other suitable yielding material, the shafts of which turn in bearings b b, secured to the standards A', as shown.
  • . C is a transverse shaving or grinding roller, made of iron, corundum, emery, or other suitable material, and situated between the rollers B B.
  • the shaft of said roller has bearings c, secured to the standards A, and is given a lateral reciprocating motion by means of mechanism, .hereinafter described, which connects with one of its ends extended outward from its bearing.
  • D D are horizontal ways supported on uprights rising from the bed-frame A, and runiof the' slide-frame.
  • D D are ways silnilar to the ways D, but running from the opposite end ofthe bedframeinward to within'a short distance of the meeting line of the shaving-roller and the lower roller.
  • B and -E is a slide moving and acting thereon similarly to theslide E on the ways D.
  • the rack is on the under edge of the bar F, and is moved inwardly by a pinion, g, on a transverse shaft, G, which has ,bearings iXed to uprights rising from the'bedframe A.
  • F is a rack-bar similar tothe bar F, and connected in alike manner to the slide E', and g is a pinion actuating the same and ⁇ fixed to a transverse shaft, G, ⁇ having bearings on the bed-frame.
  • H is a cam-arm fixed in such a position on the shaft G that when the pinX comes above it, as the rack-bar moves inwardly, it is turned up under said pin, disengaging the pinion g from the rack-bar E, and stopping the inward Imotionrof the said bar.
  • a similar cam-arm, H', is fixed on the shaft G. 4
  • I is a slide-frame iXed to theside of the bed-frame in such position that when the rackbar F is moved inward the pin X rests upon the inwardly-extending gnide-ange 'i on its lower edge,andwhenthe rack-bar is lifted by means of the cam-arm the said pin is raised on the inclined guide-way j, which is formed by the upper edge of the inward extension J
  • the lower guideway for the pin X lies between the ange'z and the lower edge of the projection or eXtension'J.
  • u I is a slide-frame iixed to theother end of the bed-frame, constructedzlike the framel, and similarly engaging a pin, X,on the rack bar F.
  • K is a cord or rope xed by its inner end to the slide E, and having secured to its depending enda Weight, 7c, as shown.
  • L is a pulley with bearings in a standard rising from the outer end of the slide-frame I, and having the cord K passing over it.
  • K' is a similar cord connected with the slide E', passing over the pulley L', connected with the slide-frame I'.
  • M is a transverse shaft having bearings fixed to the lower edges of the side beams of the bed-frame vertically below the standards A'.
  • N is a sleeve feathered or splined on the extended end of said shaft, and having its exterior surface doubly threaded, the two threads being in reverse direction and running into each other at their ends.
  • O is a vertical bar sliding in brackets fixed to the side of the bed-frame, and having laterally-extending arms o on its lower end, between which is a concaved edge which rests between the threads of the sleeve N,and makes the sleeve slip to and fro on the shaft M as it passes from one thread to the other in the reverse direction.
  • P is a loose collar on the sleeve N, and P' is a similar collar on the shaft of the roller C.
  • said collars may turn in annular grooves made onsaid sleeve and shaft near their ends, or may fit over the reduced ends of the same,and be kept thereon by headed bolts.
  • Q is a rod having its ends made into semicircular forks the arms of which are longitudinally slotted for the insertion of pins on the collars P P', as shown.
  • q is a rod having its inner end secured to the foot of the standard A', and the rod Q pivoted to its outer end.
  • B is a transverse shaft having bearings on the beams c', and carrying the driving-pulley r and a pulley, r', which, by means of a proper belt, drives the pulley r2 on the end of the roller G,opposite that to which the rod Q is connected.
  • m is a pulley on the shaft M, which isrotated by a belt from the 'shaft It, (or a pulley thereon,) and, by means of its rotation and the bar O', makes the sleeve N reciprocate on the shaft M.
  • S is a transverse shaft having bearings on the beams a', and rotated from the shaftR by means of the pulley s and a proper belt.
  • T T' are pulleys, respectively on the opposite ends of the shafts G and G', which pulleys are rotated by means of belts from opposite ends of the shaft S or from pulleys thereon.
  • the pulleys T T' are arranged to turn in opposite directions, so that the rack-barsF and F will simultaneously approach and recede from the rollers; but this point is not essential, and one rack-bar may be arranged to approach the rollers as the other recedes therefrom.
  • U is a slate passing between the upper roller, B, and the shavingroller C.
  • the general manner of operating the niachine is as follows: The slate to be operated on is placed in the ways D, in front of the slide E, and the rack-bar F, actuated by the pinion g, moves inward till the pin X is over the camarm H, which has then turned sufficiently upward to lift the rack-bar out of engagement with the pinion and leave the pin X' in position to slip on the upper guideway, j. The rack-bar is then drawn outward on said ways by the cord K and attached weight till the pin X' passes beyond the outer curved edge of the projection J, when the rack-bar falls upon the flange z' and again engages the pinion g, to carry another slate to the rollers.
  • the action of the mechanism at the other end of the frame is the same as the above.
  • the double-threaded sleeve by means of the mechanism connecting it with the shaft of the grinding or shaving roller C, causes the latter to reciprocate laterally across the slate which is being operated upon when thelatter is passing between the rollers.
  • the under side 0f the slate is shaved or reduced by the roller G and the upper roller, B, and after it hasbeen passed between the same itis passed between the rollers C and B', whereby its upper surfaceis shaved.
  • the rollers B and B' being of rubber or similar material, give to different thicknesses of slate.
  • I claim- 1 a slate-shaving machine, the combina- ⁇ tion, with a grinding or shaving roller having a lateral reciprocating motion in addition to its rotation', of two rollers similarin size,situ ated, respectively, above and below the shaving-roller and turning in opposite directions,
  • the combination with the roller C, collars P P', rods Q q, threaded sleeve N, guide-bar O, and shaft M, of the rollers B and B', rotating in opposite directions,for the purpose of allowing the slate to pass between the rollers C and B in one direction and between the rollers C and B in the opposite directions,substantiallyy as described.

Description

(No ModeL) 3 Sheets-Sheet 1.@
R. A. COFFIN.
SLATE SHAVI'NG MACHINE.
Patented Apmjlaa.
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R. A.' COIFIN.
Y SLATE SHAVING MACHINE. Y Y No. 315,247. Patented Apr. 7, 1885.
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NV VEJV TOR lttornay llilrirTED STATES PATENT l ,'OFEICE.
ROBERT A. coEEIN, oE sLATINGToN, PENNSYLVANIA.
sLATE-SHAVING MACHINE.-
SPECIFICATION forming p art of Letters Patent No. 315,244?, dated April 7, 1885. Application filed June 16,'1'881. (No model.)
To all whom, t may concern: y,
. Be it known that I, ROBERT A. COFEIN, of Slatington, in the county of Lehigh and State of Pennsylvania, have invented new and useful lmprovements in Machines for Shaving Slates or other Material; and I do hereby declare the following to be a full, clear, and exf act description ot' the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon,in whichu Figure l represents a perspective view of the machine. Fig. 2 is a vertical longitudinal section of the same. Fig. 3is avertical section on the line w :c of Fig. 2 Fig. `4 is a detail view ofthe double-threaded sleeve. Fig. 5 is a cross-section of the slide-frame and of the rack bar and pins thereon. Fig. 6 is a plan view of the complete machine. Fig. 7 is a central vertical section of the same, on theline y y, Fig. 6; and Fig. 8 is a front view of the rod Q and its attachments.
This invention relates to improvementsin machines for shaving or reducing the thickness of slabs or plates of slate or other material; and it consists in the construction and novel arrangement of parts hereinafter fully described, and pointed out Ain the appended claims. i
In the accompanying drawings, A represents the horizontal bed-frame of the machine, supported on the legs a a, which are connected near their lower ends by the longitudinal beams a a', up'on which two of theactuatingshafts of the machine have their bearings, as shown.
A A are opposite standards rising from the center of the side beams of the bed-frame.
B B are transverse rollers, of rubber or other suitable yielding material, the shafts of which turn in bearings b b, secured to the standards A', as shown.
. C is a transverse shaving or grinding roller, made of iron, corundum, emery, or other suitable material, and situated between the rollers B B. The shaft of said roller has bearings c, secured to the standards A, and is given a lateral reciprocating motion by means of mechanism, .hereinafter described, which connects with one of its ends extended outward from its bearing.
D D are horizontal ways supported on uprights rising from the bed-frame A, and runiof the' slide-frame.
ning from one end of. the said frame inward ,to within a short distance of the meeting line `of the shaving-roller VC and the upper roller, B, iso that the slide E may drive before it on said lways a slab or plate of slate,and make the same pass between the said rollers.V
D D are ways silnilar to the ways D, but running from the opposite end ofthe bedframeinward to within'a short distance of the meeting line of the shaving-roller and the lower roller. B and -E is a slide moving and acting thereon similarly to theslide E on the ways D.
F is a rack-bar pivoted at its, inner end to a bracket, f, Xed to the outer edge of the slide E, and having on its outer end the inwardlyextending pin X and the outwardly-extending pin X. The rack is on the under edge of the bar F, and is moved inwardly by a pinion, g, on a transverse shaft, G, which has ,bearings iXed to uprights rising from the'bedframe A.
F is a rack-bar similar tothe bar F, and connected in alike manner to the slide E', and g is a pinion actuating the same and `fixed to a transverse shaft, G, `having bearings on the bed-frame.
H is a cam-arm fixed in such a position on the shaft G that when the pinX comes above it, as the rack-bar moves inwardly, it is turned up under said pin, disengaging the pinion g from the rack-bar E, and stopping the inward Imotionrof the said bar. A similar cam-arm, H', is fixed on the shaft G. 4
I is a slide-frame iXed to theside of the bed-frame in such position that when the rackbar F is moved inward the pin X rests upon the inwardly-extending gnide-ange 'i on its lower edge,andwhenthe rack-bar is lifted by means of the cam-arm the said pin is raised on the inclined guide-way j, which is formed by the upper edge of the inward extension J The lower guideway for the pin X lies between the ange'z and the lower edge of the projection or eXtension'J.
u I is a slide-frame iixed to theother end of the bed-frame, constructedzlike the framel, and similarly engaging a pin, X,on the rack bar F.
K is a cord or rope xed by its inner end to the slide E, and having secured to its depending enda Weight, 7c, as shown. i
IOO
L is a pulley with bearings in a standard rising from the outer end of the slide-frame I, and having the cord K passing over it.
K' is a similar cord connected with the slide E', passing over the pulley L', connected with the slide-frame I'.
M is a transverse shaft having bearings fixed to the lower edges of the side beams of the bed-frame vertically below the standards A'.
N is a sleeve feathered or splined on the extended end of said shaft, and having its exterior surface doubly threaded, the two threads being in reverse direction and running into each other at their ends.
O is a vertical bar sliding in brackets fixed to the side of the bed-frame, and having laterally-extending arms o on its lower end, between which is a concaved edge which rests between the threads of the sleeve N,and makes the sleeve slip to and fro on the shaft M as it passes from one thread to the other in the reverse direction.
P is a loose collar on the sleeve N, and P' is a similar collar on the shaft of the roller C. The
said collars may turn in annular grooves made onsaid sleeve and shaft near their ends, or may fit over the reduced ends of the same,and be kept thereon by headed bolts.
Q is a rod having its ends made into semicircular forks the arms of which are longitudinally slotted for the insertion of pins on the collars P P', as shown.
q is a rod having its inner end secured to the foot of the standard A', and the rod Q pivoted to its outer end.
B is a transverse shaft having bearings on the beams c', and carrying the driving-pulley r and a pulley, r', which, by means of a proper belt, drives the pulley r2 on the end of the roller G,opposite that to which the rod Q is connected. m is a pulley on the shaft M, which isrotated by a belt from the 'shaft It, (or a pulley thereon,) and, by means of its rotation and the bar O', makes the sleeve N reciprocate on the shaft M.
S is a transverse shaft having bearings on the beams a', and rotated from the shaftR by means of the pulley s and a proper belt.
T T' are pulleys, respectively on the opposite ends of the shafts G and G', which pulleys are rotated by means of belts from opposite ends of the shaft S or from pulleys thereon. The pulleys T T' are arranged to turn in opposite directions, so that the rack-barsF and F will simultaneously approach and recede from the rollers; but this point is not essential, and one rack-bar may be arranged to approach the rollers as the other recedes therefrom.
U is a slate passing between the upper roller, B, and the shavingroller C.
The general manner of operating the niachine is as follows: The slate to be operated on is placed in the ways D, in front of the slide E, and the rack-bar F, actuated by the pinion g, moves inward till the pin X is over the camarm H, which has then turned sufficiently upward to lift the rack-bar out of engagement with the pinion and leave the pin X' in position to slip on the upper guideway, j. The rack-bar is then drawn outward on said ways by the cord K and attached weight till the pin X' passes beyond the outer curved edge of the projection J, when the rack-bar falls upon the flange z' and again engages the pinion g, to carry another slate to the rollers.
The action of the mechanism at the other end of the frame is the same as the above. The double-threaded sleeve, by means of the mechanism connecting it with the shaft of the grinding or shaving roller C, causes the latter to reciprocate laterally across the slate which is being operated upon when thelatter is passing between the rollers. The under side 0f the slate is shaved or reduced by the roller G and the upper roller, B, and after it hasbeen passed between the same itis passed between the rollers C and B', whereby its upper surfaceis shaved. The rollers B and B', being of rubber or similar material, give to different thicknesses of slate.
Having described my invention, I claim- 1. I-n a slate-shaving machine, the combina- `tion, with a grinding or shaving roller having a lateral reciprocating motion in addition to its rotation', of two rollers similarin size,situ ated, respectively, above and below the shaving-roller and turning in opposite directions,
so that the slate may pass in one direction between the shaving-roller and roller above it and in the reverse direction between the shaving-roller and roller below it, for the purpose of operating alternately on the lower and up-v IOO per surfaces of the slate, substantially as specifr 2. In aslate-shaving machine, the combination, with the roller C, collars P P', rods Q q, threaded sleeve N, guide-bar O, and shaft M, of the rollers B and B', rotating in opposite directions,for the purpose of allowing the slate to pass between the rollers C and B in one direction and between the rollers C and B in the opposite directions,substantiallyy as described.
3. Infaslate-shaving machine, the combination,with the rotating and longitudinally-reciprocating roller G, and the rollersB B', rotating in opposite directions to each other,of the ways D D', slides E E', and rack-bars F F'. reciprocating, respectively, upon the ways D D', substantially as specified.
4. In a slate-shaving machine, the combination of thel roller B and the rotating and longitudinally-reciprocating rollerG, with theways D, slide E, rack-bar F, provided with the pin x, pinion g, and cam-arm H, substantially as specified. i
In a slate-shaving machina, thecombina-v tion, with the ways D, slide E, rack-bar E, provided with the pins x and' ',.of the pinion g, cam-arm II, slide-frame I, provided` with the ways if and j, cord- K, and weight k, sub# stantially as specified.
Witnesses: ROBERT A. COFFIN.
DAVID MCKENNA, GEORGE T. OPLINGER.
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