US883649A - Grinding-machine. - Google Patents

Description

PATENTED MAR. 31, 1908. A. B. LANDIS. GRINDING MACHINE.

APPLICATION FILED D30. 23' 1905.

6 SHEETS-SHEET 1.

Witnesses PATENTED MAR. 31, 1908. A'. B. LANDIS. GRINDING MACHINE.

APPLICATION FILED DEO.23,1906.

6 SHEETS-SHEET 2.

Suvantoz 6. tkozneq PATENTED MAR. 31, 1908 3 I D N A L R A GRINDING MACHINE. APPLICATION FILED DBO.23,1905.

Suoemtoz n m m 5 SHEETSSHEET 4.

PATENTED MAR. 31, 1908.

A. B, LANDIS. GRINDING MACHINE.

APPLICATION FILED DEO.23,1905.

- PATENTED MAR. 31, 1908.

. A. B. LANDIS. GRINDING MACHINE.

APPLICATION FILED D.E0.23|1905.

6 BHEETB-SEBET 6.

ABRAHAM B. LANDIS, OF WAYNESBORO, PENNSYLVANIA:

GRINDING-MACHINE.

Specification of Letters Patent.

Patented March 31, 1908.

Application filed. December 23, 1905. Serial No. 293,137.

To all whom it may concern:

Be it known that I, ABRAHAM B. LANDIS, a citizen of the United States, residing at Waynesboro',-in. the county of Franklin and State of Pennsylvania, have invented certain new and useful Improvements in Grinding-Machines, of which the following is a specification.

In the use of glass stoppers in bottles de signed for containing liquids charged with gas, it is essential that the seat for the stopper in the neck of the bottle shall be perfectly true and smooth and also that the stopper shall have a correspondingly smooth surface, perfectly true to fit therein, in order to prevent any leakage of the gas and consequent impairment of the liquid.

The object of my saidinvention is, there- I fore, to provide machinery for the purposeof "sectionalview of the grinding wheel spindle showing more'clearly the manner of securing grinding the seat for the stopper in the neck of the bottle and also to grind the stopper so that it .will fit perfectly' in said seat.

The subject matter of the present application relates to a machine'for grinding the seat in the 'neck of the bottle, the machine for grinding the'stoppers being made the subject matter of a separate application.

, Referring to the accompanying drawings which are made a part hereof and on which similar reference characters indicate similar parts, Figure 1 is a'front elevation of a bottle grinding -machine embodying my said invention, Fig. 2 an end elevation of the same, Fig. 3 a view partly in top plan and partly'in horizontal sectionof said machine, Fig. 4 a detail section on the dotted line 44 in Fig. 3, Fig. 5 across-section on the dotted line 55 in Fig. 3, Fig. 6 a cross-section on the dotted line 6-6 in Fig. 3, Fig. 7 a detail view on an enlarged scale on the dotted line 77 in Fig. 3, Fig.8 a still further enlarged the grinding wheel thereon, and Figs. 9 and 10 detail views of the operating cam for shifting the parts.

In-said drawings the portions marked A.

represent the'bed on which the machine rests, B the swiveled work supporting table and C the. grinding wheel carriage.

The bed A on which the machine rests is of a construction suitable for the purpose, made of wood, or may be a casting, and is mounted upon suitable supports. It has hangers A mounted at its ends on the under side for ing through segmental slots in transversely extending wings B at its rear end into perforations in the bed A beneath. A bearing base B is mounted on said table to be adjusted longitudinally by means of clamping bolts 6 the heads of which engage T-grooves 12 formed in the top of said table B to extend longitudinally thereof. In the top of said base part B is formed one-half of'a journal bearing containing a suitable bushing or lining b and the upper half B of said bearing, with similar lining, is secured thereon by means of screw bolts 19 extending downwardly through perforations in cars on the sides of said part B into screw-threaded perforations in said part B A rearwardly projecting arm B is formed on the rear end of said art B and has another similarly formed bearing B thereon, in line with the bearing formed by the parts B and B A hollow spindle B is journaled in said bearings and has a cone-pulley B on its outer end. A solid shaft B is mounted in said hollow spindle and has a cup-shaped holding disk b secured on its inner end. Said shaft 13 is formed with an enlarged front end and a coiled spring I) is mounted in an enlarged portion of the socket in the hollow s indle B between the shoulder b in said sha t and the shoulder b in the socket of said hollow spindle. The forward end of said hollow spindle is formed with a flange 12 and between said flange and the adjacent faces of the bearing arts B and B is mounted'an anti-friction all-bearing construction to take the end thrust of the work holding devices and prevent undue friction between the parts under the rapid rotation of said hollow spindle.

Said ball-bearing structure consists of the face-plates p and resting ag'ainstthe flange b and the end 0 the bearing, respectively, and balls mounted ina ball-race between rings 3 and p whichare mounted between said p ates and p and are heldin place by a ring p which surrounds the structure.

through ears on the sides thereof.

sleeve B serves as a revolving support for when the grin the end of the bottle or work being ground. The construction is shown most clearly in Fig. 7. A hardened steel ring I) is secured within said sleeve B and has a tapered cen tral opening into which the neckof the bottle is inserted, as shown in Fig. 3, and furnishes the support for this end of the bottle. Said sleeve B h as a shoulder B and said bracket B has another shoulder 12 between which a ball thrust-collar is interposed, the same being com osed of a two-part collar 12 and balls I) etween the parts to take care of the end thrust produced on the bottle by the spring 12 A retaining collar b is screwed onto the projecting outer end of sleeve B to secure the parts in place. Said sleeve B is thus adapted to revolve with the bottle, which running in a fixed and true bearing insures true work by the grinding wheel in the bottle neck. The end thrust ball-bearings relieve the friction so that said sleeve will revolve readily with said bottle under the frictional contact insured by the spring N. The outer end of sleeve B has a recess b beyond the ring I) to revent the throwing of water sing wheel is withdrawn from the work being ground. I The grinding wheel carriage C is mounted .npon longitudinal. ways on one side of the bed A and has a slider C mounted on the top thereof.

thereof to slide or to be adjusted transversely Said carriage C may be given a longitudinal vibratory motion by'means of a cam-groove in a collar 0 mounted by a s line 8 upon a shaft c, journaled in suitable earings on suitable parts of the bed A.' Said cam-groove is enga ed by a depending yoke c on said carriage and thus as said shaft is revolved said carriage C is moved back and forth. A circular groove 0 is also formed in the collar 0 and is engaged by a projecting yoke y formed on one side of a collar 0 which collar is secured to slide on a rod 0 mounted beneath shaft 0 in the bed A, and a spring 0 is interposed betweensaid sliding collar 0 and a fixed art of said bed A, in which the head of said rod 0 is secured by a screwthreaded connection. Said collar 0 has a notch or recess 0 in its under side with which the upper end of a shifting lever 31 engages for operating the carriage to withdraw the grindmg wheel from the neck of the bottle, as will be presently described. The slider C is mounted to slide transversely on the carriage C and may be fed forward to the work-by hand through a screw-rod c engaging with.

a screw-threaded perforation c in said carriage C. Said screw-rod extends through a downwardly projecting flange 0 onthe outer edge of said slider and is held to move therewith by means of ashoulder Which abuts against the outer face of said flange and a collar 0 rigidly secured on said rod to bear against its inner face. A coiled-spring c 'is interposed between said collar 0 and a shoulder at the end of a socket in said carriage C, which spring normally holds said slider backward away from the work and prevents ariy back-lash or vibration of the grinding wheel during 0 eration. As the work progresses the grinding wheel can be moved up to the work by turning the screw-rod by means of a hand-wheel 0 It will be understood, of course, that the feed required for the carriage will be very slight and can be easily accomplished by this means.

The grinding Wheel spindle D is journaled in suitable boxes carried by overhanging arms C projecting from the forward end of the slider C. Said spindle is formed hollow and is connected with a water supply pipe D supported on a standard D attached to the edge of the bed'A; Said standard carries a suitable fitting containing a valve (1 by which the flow of the water is controlled. The grinding wheel D is a hollow cylindrical emer'y block of the form shown most clearly in Figs. 7' and 8 but may be of any form found suitable. It is preferably tapered at the ends and a seat therefor is formed upon the outer end of spindle D with a dove-tailed shoulder to fit against the tapered end of said emery block and a washer d of a similar formation is mounted on the spindle outside of said wheel and aunt (Z is mounted on the screw-threaded end and serves to clamp said parts together. i

The main driving shaft 1 is connected by a clutch 2 with a main driving ulley 8, which is loosely mounted on said s l geared by a belt 'or other suitable gearing to the engine or other driving power. The clutch part 2 is mounted upon said shaft 1 by means of a spline s and connected with a shifting lever 4 of the usual or any suitable construction for throwing the clutch into. or out of engagement with said pulley 3. Said shaft -1 has a large pulley 5 mounted thereon, which is belted to a small ulley 6' on a parallel counter-shaft 7. A l mounted on said counter-shaft 7 and belted to a small pulley 9 on another counter-shaft 10. A large pulley 11 on said counter-shaft 10 is connected by a belt 12 with a pulley 13 on the grinding wheel s indle D. Another belt 14 runs from a pul ey 15 on the main driving shaft 1 to a pulley 16 on a countershaft 17, supported in bearings on the end of the frame. Said shaft 17 has a small gear 18 secured thereon which meshes with alarge gear 19 on a stud shaft 20 supported on the end of bed A alon side said shaft 17. Said gear 19 has a small gear 21 on or secured to iaft and arge pulley 8 is its hub, which gear meshes with the gear 22 on the outer end of shaft 0, the rotation of which vibrates the grinding wheel carriage. Another pulley 23 is mounted on the oppo site end of the main shaft 1 and is geared by a belt 24 to the cone-pulley B on the end of the hollow spindle B. The shaft B is provided on its outer end with a collarB having a circumferential groove in which the up er forked end of the vertical arm of a bell-crank lever 25 engages. Said bell-crank lever 25 is pivoted at its elbow in a bracket .26 extending down from bracket B, and is connected by a link 27 with an arm 29 which extends horizontally from a rock-shaft 30, to

which it is rigidly secured. Said rock-shaft 30 is mounted in bearings in stands A and other end of the machine a bell-crank lever 31 is pivoted at its elbow-in a bracket 32 on the under side o'fthe bed A, its vertical arm engaging with the groove 0 in the collar 0 on the rod 0 and its horizontal arm being connected by a link 33 to an arm 34 rigidly secured to said rock-shaft 30. Another link 35 connects the operating lever 36 of the I valve (2 with the outer end of another arm 'treadle 41 rigidly mounted thereon.

37, also rigidly secured to said rock-shaft 30. An operating shaft 40 is mounted alongside said shaft 30 in suitable bearings in said stands A and A and has a foot-lever or A cam 38 is rigidly secured-0n said shaft 40 near one end and a crank-pin 19 (having an antifriction roller thereon) extends out from the lowerend of'an arm 39, which is rigidly secured to shaft 30 and engages with the cam slot .9 therein. Said cam slot is formed as shown most clearly in Fig. 9, with its lower end concentric with the axis of shaft 40 and its upper end extending away from said axis for a purposeto be presently described. On the opposite end of shaft 40 is rigidly secured another cam 42 having a cam slot 8 with which a crank-pin p on the lower end of an arm 43, rigidly secured to shaft 30, engages. Said cam-slot s is also concentric with shaft 40 at its upper end and at its lower end extends towards said shaft. It will thus be seen that when lever 41 is forced in the direction indicated by the arrow in Fig. 2 cams 38 and 42 will be carried downwardlyand the cam-slots will operate through their connec-' tion with the arms 39 and 43 to rock shaft 30 to throw the arms 29, 34 and '3 7 upwardly and through the levers 35, 33 and 27 operate to shut offthe supply of water, withdraw the grinding wheel from the bottle neck and withdrawthe bottle holder to release the bottle, the parts being adjusted to perform theseveral steps in the order named and in rapid succession.

The operation is as follows: The parts being in the position shown in Fig. 3 the machine isready for operation. The bottle At the is driven slowly by reason of the gearing between the shaft 1 and hollow spindle B, before described.

before described. The grinding wheel carriage is reciprocated back and forth a distance necessary to traverse the grinding wheel over the stopper seat in the neck of the bottle, by the connection with the cam groove in collar 0 on shaft 0, which shaft is driven from said shaft 1 through the chain of gearing before described. The valve (2 is open and water is flowing into the hollow spindle D of the grinding wheel and into the bottle constantly. The grinding wheel is fed to and from the work by turning the screw rod 0 through the hand Wheel 0 until the seat for the stopper has been round to the desired size. The bottle is a justed to the angle necessary to give the stopper seat the desired taper by swinging the table B on its pivot b and securing it by the set screws 1); When the bottle has been ground until the stopper seat is as desired, the operator places his foot on treadle 41 and rocks shaft 40 which through the cams 38 and 42 and the connections above described operates to close valve (1, withdraw the grinding wheel from the neck of the bottle and release the bottle from the clamp when another bottle is put in place, the lever rocked in the opposite direction, when the bottle is clamped in place, the grinding wheel inserted in its neck the water turned on, the work proceeds as before, the operator manipulates screw 0 to bring the grinding wheel into the correct relation with the work, all Without stopping the machine, as will be readily understood.

It is obvious that while this machine in a general way has been designed for grinding out the necks of bottles, with slight modifications it can be adapted for various kinds of internal grinding in metals and other materials by the various automatic feature herein described Without departing from the spirit of my invention, since all of the various mechanisms are equally applicable to a large variety of special work, and its use as a machine for the manufacturin of such special work would be equally profitable. 1 there- ,fore do not desire to be understood as limiting my said invention to the articular use mentioned'but regard it as a apted for all such special uses for which it may be found to be adapted.

Having thus fully described my said invention, What I claim as new and desire to secure by Letters Patent, is

1. A machine for grinding stopper seats in the necks of bottles, comprising a frame, a bottle holding V mechanism mounted upon a swiveled table, a reciprocating carriage carryin the grindin wheel, means for feeding sai grinding w eel to the work, and

suitable gearing for driving the several parts, substantially as set forth.

2. In a grinding machine for grinding internal tapers. in cylindrical bodies, the combination, of the frame, the work holding carriage mounted on a pivot to permit the Work to be held at different angles to the grinding wheel, the grinding Wheel carriage mounted to reciprocate to traverse the grinding wheel over the work, means for feeding said grinding wheel to the work, and suitable gearing for driving the several parts, substantially as set forth.

3. In a machine for grinding tapered seats, the combination of the frame, the swiveled table for holding the work, the reciprocating carriage for supporting the grinding wheel, said grinding wheel mounted on a hollow spindle, a water supply connected with said hollow s indle, and suitable driving gear, substantially as set forth.

4. In a grinding machine for grinding stopper seats in bottle necks, the combination, of the frame, the bottle holding table swiveled on said frame, a fixed support for the neck of the bottle, a yielding support or clampfor the base of the bottle, said yielding support being connected to means for o erating it to release the work and mounts in a driven part, the grinding wheel carriage mounted to e reciprooated to traverse the work, and to .be fed to said work, and suitable driving mechanism, substantially as set forth.

5. In a grinding machine for grinding tapered seats, the combination, of the frame,

the work supporting table swiveled thereon, the work holding clamps on said table com prising a fixed support and a yielding clamp, means for operating said yielding clamp back and forth, means for driving the work, and a grinding wheel mounted and arranged to operate upon said work, substantially as set forth.

6. In a grinding machine for grinding seats in the necks of bottles, the combination, of the frame, the swiveled table the work holding devices on said swiveled table, the grinding wheel carriage, means for reciprocating said carriage back and forth to traverse the grinding wheel over the work, said grinding wheel mounted upon a hollow s indle, a water supply connected to said holow spindle, means for feeding said grinding wheel to the work, and suitable driving mechanism for said several "parts, substantially as set forth.

7. In a grinding machine for grinding bottles, the combination, of the frame, the work holding devices mounted on a table, means for driving said work at one speed, the grinding wheel mounted on a reciprocating carriage, ,means for driving said grinding wheel at another speed and feeding said wheel to the work, means for reciprocating said grinding wheel, means for changing the reciprocation, means for withdrawing the grinding wheel from the work when said Work is being changed, and operating mechanism for said several parts, substantially as set forth.

8. In a grinding machine for grinding internal seats in bottle necks, the combination, of the frame, the work holding table, the grinding wheel carriage mounted toreciprocate, means for adjusting the travel of the reciprocating movement, means for feeding the grinding wheel to the work, and driving mechanism for the several parts, substantially as set forth.

9. In a grinding machine for grinding in' ternal seats in cylindrical parts, the combination, of the frame, the work holding table, the work driving mechanism,- the grinding wheel carriage, mechanism for reciprocating said carriage to traverse the grinding wheel over the work, means for adjusting "thelength of said reci rocation, means for feeding the grinding w 1661 to the work, and driving mechanism for the several parts, substantially as set forth.

10. In a grinding machine, the combination, of the frame, the work holding table, the work-holding devices on said table comprising a sliding clamp mounted in a driven part, means for operating said clamp connected to a cam operated rock-shaft, the grinding wheel carriage mounted to reciprocate, means for withdrawing the grinding wheel from the work connected to said rock-shaft, a

water supply, .a valve for controlling said supply, means for o erating said valve connected to said rock-sha t, and means for rocking said shaft to operate said several parts, substantially as set forth.

11. In a grinding machine, the combination, of the frame, the work supporting table, the work holding devices on said table, comprising a movable clamp, means for operating said clamp connected to a rockshaft, a reci rocating grinding wheel carriage, means or sliding said carriage back to withdraw said wheel from the work, said means also connected to said rock-shaft, a water supply, means for turning on and 03 said water supply also connected to said rockshaft, and a second rock-shaft carrying cams mounted to engage the ends of crank arms means for operating said 0 amp connected to a rock-shaft, a reciprocating grinding wheel carriage, means for withdrawing the grind- .ing wheel from the work also connected to said rock-shaft, cams mounted on an operatmg shaft to engage with arms on said rockranged to first holding-devices comprising a movable clamp,

meansfor operating said movable clamp connected to a rockshaft, the reciprocating grinding wheel carriage, means for moving said carriage to withdraw the grinding wheel from the work also connected to said rockshaft, the water supply pipe, a valve therein, means for o crating said valve also connected to sai( rock-shaft, an operating shaft carrying cams which engage'arms on said. rock-shaft to operate it and through it said several parts, said cams being formed to operate the valve in the water supply pi e and the grinding wheel carriage before t e work holding clamp, substantially as set forth.

.14. In a grinding machine, the combination, of the frame, the work supportin and holding deviceseo'mprising a movable cl amp, means for operating said'elamp, a grinding wheel carriage reciprocated by a cam, said cam arranged to be moved independent of. the motion it im arts to said carriage for receding the grin ing wheel from the work while reciprocating, forth.

15. In a grinding machine, the grinding wheel carriage having a given amount of reei rocation, means for changing the position 0' said given reciprocation for receding the substantially as 'set grinding wheel from the work, substantially as set forth.

16; In a grinding machine/a carriage car-v rying the grinding wheel, said carriage reciprocated by a cam, said cam made 'slidable on its shaft to change its position of reciprocation, whereby the work may be removed without stopping the machine, substantially as set forth. 4

17. Ina grinding machine, means-for automatically and simultaneously receding the grinding wheel carriage while, reciprocating, shutting oil the su )ply of the water to the grinding wheel an releasing the bottle, all Without stoppingthe machine, substantially as set forth.

In witness whereof, I,'have hereunto set my hand and seal at Waynesboro, Pa, this 11th day of December, A. I). nineteenfihundred and five.

ABRAHAM B. LANDIS. [L. s] Witnesses:

MERTA RUSSELL, ALF. N. RUSSELL.

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