US694028A - Ball-bearing slide. - Google Patents

Description

Patented Feb. 25, |902.

C'. C. PROTHERDE. BALL BEARING SLIDE.

(Application led July 27, 1899.)

2 sheets-sheet l.

1 .1.. .ll ,I Tw- (No Medel.)

iq? E.

J. NTOR.

No. 694,028. Patented Feb- 25, |902.

C. C. PROTHEROE. f

BALL BEARING SLIDE.

(Application led July 27, 1899.)

qu@ Model.) 2 sheets-sheet 2.

JTNESSES.- v I NVE/WOR. .Mw-'W4 v fw- 'UNTTED STATES PATENT OFFICE.,

CHARLES c. mori-Innen, oF RICHMOND HILL, NEW YORK. 4N. Y.

" BALL-ssaamc. Stanssrncrrrcacrron forming pm of Letters Patent No. 694,028, eared Febru ary a5, 1902.

y Application iled July 27, 1899. Serial No. 725,277. (No model.)

To' all Iwhom it 'may concern,.- L Be it kn own that I, CHARLES O. PROTHEROE,

of Richmond Hill, borough of Queens, cityand State ot` New York, have invented a new and useful Improvement in Ball-Bearing Slides, of'which the following is aspecification. i

v Myinvention consists in a ball-bearing slide operating in two planestransversely the reciprocating member, said planes being at all times substantially parallel to and equidistant from each other, whereby two sets of balls lcating member at all times in coperate to control and conne the reciprol its reciprocatlon, as hereinafter described.

s v s Vr My invention consist-s, further, of means for centrally and uniformlyad j usting the posi-l tion of each set of balls transversely with reference to the longitudinal axis of the recipf shaft.

rocating member, and, further, in the various other combinations' set forth in the claims.

In the accompanying drawings, Figure 1 shows-a plan view of the mechanism at midstroke of the reciprocation with two' of my ball-bearings', one in combination with the withpitman and crank larranged to turn a Figs. 2, 3, and 4 show possiblev positions of the-parts in the ball-bearing in three. other stages of the stroke. The stops in the bearing and on the piston-rod are indicated by dotted lines. They are shown in detail in other figures. Fig. 5 shows in detail a side elevation yof my ball-bearing. Fig. 6 shows an end view of the same, with one-half of the end stop of the guideways removed to sho-w internal construction.v Fig. 7 is a transverse section through the line com, Fig. 1.. Figs and 9 are detail views showing the stops both 0n the reciprocating member and'in the guideways.., f4 f .y Similar characters of.1eference indicate like' parts. 1-

A represents the bed-plate of .the engine,

l B the piston-rod, D thepitma'n, .E the crank,

C the shaft, andG the reciprocating rodA operating said'crank-and'p itman, all 'of the or.

dinary construction, the rods vbeing moved inL the directionof thearrows, Figs. 1,12, 3, and 4. Piston-rod B has secured to it'tle plate I. Formed in the plate I is the slot J, which is Y v orother fixed base. piston-rd of the horizontalreciprocating engine and the other'in combination with the vreciprocating rod inclinedat an angle thereto, .ways a b. The holders F F' 3 Guideway a. has lalso face n,

of suitable transverse width to receive init I the pin K. The rod G is forked at its end,

Fig. 7, and provided with two bearings L and ous thaty when the piston-rod B reciprocates 6 reciprocating motion Will be transmitted to the rod G and that when rod G is reciprocated shaft C will be rotated by means of pitman D and crank connection E.

N is one of my ball-bearings confining the motion ofthe piston-rod B. N is`another coniiniiig the motion of thereciprocating rod G.

yReferring now to Figs. 5 an-d 6, I provide two guideways a b, which may be supported in v.any suitable way upon the. engine-bed A These guideways are reby inverted -U shaped each end'of the guideare wider-than the aggregate width of the said guideways and serve to hold them firmly against the bedplate A, as shown. The holdersF F are secured to bed A by set-screws c or by any suith able means. The guidewa-ysa b are thus permitted a-motion toward and away from each other, -while at the same time-firmly seated upon the bed A. Other suitable meansmay be employed to seat the g'uideways which will permit-.of `the motion described. The pistonrod B extends through the guideways a b, and its longitudinal'a'xis is substantially parallelthereto. In. guideway a is cut 4the groove formed by the plane faces l and m. These'faces ex end the entire length of the guideway a, an their longitudinal edges -ae parallel to the longitudinal edges thereof. In. the guideway b are similar faces p and q. and guideway b corresponding face o. The two guideways also have corresponding similar faces r and s.

tained at each 'end holders F F', one at In the enlarged part ofl piston-rod B are cut similar faces l', m', n', o?, p', q', fr', and s', the longitudinal edges of which arev all parallel to the longitudinal axis of piston B .and the bearing-points on faces Z t through the gear connection screws 5' 4 Y the rotation of the against planes of which are parallel to the corresponding opposite plane faces in the guideways. 'lhe two sets of balls 1, 2, 3, and 4 and 5, 6, 7, and 8 are placed between the faces, as shown in Fig. 5. Thus faces Z, Z', lm, and fm retain ball 1,als0 ball 5. Faces o o' n n' retain balls 2 and 6, p19 and q q' retain balls 3 and 7, and r 1" and s s retain balls 4 and 8. By such construction each ball bears against four plane surfaces. For instance, ball 1 bears on surfacesZ m of the guideways andl Z m' of the piston-rod, face Z is par allel to'face m', and face m is parallel to face Z'. The bearing-points on faces Z and m are the same distance. from each other as the and m', thus insuring the rolling of the balls between guideways and piston-rod when said rodis reciprocated.

h h' are right and left threaded screws retained by collars on the sides of holder F, as shown, and geared together by bevel-gears '1l ft jj' and shaft 7c, suitably supported on one side of holder F. The shaft 7c is also provided with a hand-Wheel t. Right and left threaded screwsh h' pass through guideways a b, respectively, which are threaded to receive them. Similar adjustment by screws h" h with gears 11 t'"' and j" j'", shaft Za', and hand-wheel t' is provided for holder F' at the other end of the guideways a b, Fig. 5. It will be obvious that by turning hand-.wheel hh,act ing together, will cause the guideways a b to approach or recede from each other, as desired, and that faces Z m, dac., will advance the balls 1, 2, 3,' and 4 radially toward the longitudinal axis of pistou B. Faces Z and s in the guideways are preferably disposed in the same plane, as are also faces m and n, o and p, q and 1, So, als, facesl and o' in the piston-rod are preferably disposed in the same. plane, as are also m and 1*',01' and q', p' and s. The advance of the balls toward the longitudinal axis ofthe piston by the mutual approach of the guideways at each end thereof, above described, will be uniform and will furnish ready adjustment for the ball-bearing, while aiding to retain the accurate ad'- justment of the piston-rod and also prevent piston-rod.

, In each groove of the piston-rod and in planes at right angles thereto are two series v.of stops 'v 'v' and u" fv", Fig. 5, one for each set of balls. These stops are held in position by any suitable means, as by set-screws w, Fig. 8. In each groove of the guideways a b and in planes at right v'angles thereto are simi'- lar stops e' z' and z" a'", two foreach set `of balls. These stops are also secured in their places, as shown, by any suitable means, as by set-screws the piston-rod pass freely without ecebetween stops e, &c., of the guides. It will be understood, therefore, that ball-l is held between parallel faces'Z m and m and Z', v

and as piston B reciprocates said ball is limited the piston-rod is shown in reciprocating 'and 4 and upon the y, Fig. 9. The stops fu, &c., of`l interfer- `each forward and backward stroke. l

in its motion by stops ways, and it is also controlled in its motion by stops o, &c., of the piston-rod should it not be rolled by the piston itself under action of the forces developed at any period of thel stroke. These stops o, &c., in the piston-rod and the stopsz, dsc., in the grooves of the guideways are so placed relatively `to the stroke of the piston-rod that the set of balls l, 2, 3, and the entire length of the stroke, and should any of the balls not be rolled by the action of the piston, as before stated, these stops are so placed that all the balls will be assembled substantially in the same plane (at right `angles to the motion of the piston-rod) at each end of each stroke. The same arrangement is shown as tothe set of balls 5, 6, 7, and 8 and as to their stops. This construction insures the rolling or sliding of the balls between the piston-rod and the guideways during each stroke and that they shall be properly assembled at the end of each stroke.

Referring 'now to Figs. 1, 2, 3, and 4, the operationof the devia/e is as,v follows: In Fig. 1 the middle of its inward stroke, as indicated by the arrow, and the crank 'gis shownat right angles to reciprocating rod Gr. As the piston-rod approaches the end of -its i ward stroke stops 'v' fv'" will roll or slide any of the balls not acted on by the piston-rod to the left-hand end of their guides, where they meet the44 stops .a e", and.

in reverse as the piston-rod approaches the end'of its outward stroke stops 'u 1),will roll a, &c:, in the guide- 4`are allowed to roll throughout or slide any of the balls not acted upon by the piston-rod to the right-hand end of their guides, where they meet the stops ya' 2"'. Underl the conditions explained lateral force upon the piston-rod B, influenced bythe operation of the mechanism shown-namely, the

reciprocating rod Gr` and roller -K in slot J i y will cause a pressure upon some of the balls ofset 5, 6, 7, tradispsed balls of the set 1,'2, 3, and 4, and the accurate movement of the piston in reciprpcatingwll thereby result. Similar eect will be produced iff a case where the reciprocating motionof the piston-rod is converted directly into rotary motion by crank and. pitman, as in the case of the ordinary horizontal reciprocating engine. So, also, similar effects are produced in the slide N' as confining the motionof rod G.

It will be obvious that stops fu' and v" of the piston-rod may be placed as to operate upon the balls 1., 2, 3,

balls, 6, 7, and 8', respectively. It will also 'be obvious that stops z e" of the guides may be made one stop and so placed as to prevent the escape of the balls l, 2', 3, and 4 in one directionand of the balls 5, 67, and'S, respectively, inthe other direction, or these twost'ops in the Vguid'eways may be omitted. I prefer their retention to compel the proper assembling of the balls at The sets and 8 and upon some of the con' made one stop and so 'l of balls may be separated by a greater dis- 1 tance along the longitudinal axis ofthe pislton B, in whichcase-'suitablyeplaced stops V tboth in the piston G'shew stops u u l an end sto'p for one-half the grooves instead Instead ofenlarging thepiston-rod where or z'fl In that figure of the separate stops fz ion .the end of guidewayb this half-ring ahas '.-be'en removed to show internal construction. Thisend stop u is -convenient in the ready i assembling of `the parts; but it is understood .that it is merely to substitute for the stops d, Fig. 9. Other forms of stops o, dre., z, drtay `be employed -to accom- 'plish the desire result. i

it passesthrough the guideways in construct ing the grooves formed vby faces Zm', ttc., these grooves may be cut in therod itself.

' The particular` advantagesof the device,

. 1 in addition to the reduction ofj-friction where 25,l mission of power and advantagesin construc-` `reciprocating motion is'employed in the trans tion, is that it will tend 'to'relieve the cylin? der-head and the,cylinder-itselfjfrom unequal lateral pressures and also that it .will lenable the conversion'ofreciprocating motion into reciprocating motionin a' diderent direc-.

`tion, as shown,-

wit-h a reduction' of l,.lfrictiou. I claim-'- i 41. The combination of a 'member reciprocaltin'gina'straight line,' balls in Contact there- '.forrnly 'regulating th-e distance betweensaid balls and the path of motion of 's .aid member,

ywith, means supporting said balls in said con-y tact and means for simultaneously andunisubstantially as described.`

" 2. The combination of a reciprocating mem- A ber, balls i-n contact therewith, ways or guides `vborne by said memberI receiving said balls,

.ways or guides respectively ,supporting said. 'b i a s'insaid contact, and means'for simultaneously and uniformly adjusting said lastnamed ways or guides nearer to or farther #from said member, substantially as described. y

3.. rlhe'combination of fing topositively move said balls in said bearf 'ing over a a reciprocating member, aball-bearing therefor, means actuated by said member and constructed and operatpath of definite extent correspond# lingto vthat of the path of reciprocation of said member, and means for simultaneously and centrally adjusting the balls Ato said member, substantially as described.

r.' j 4.,. The combination of a reciprocating mem- -'-ber, ways or guides borne by said member, plane surfaces parallel to the path of recipro-'- cation of said member onfor contact with the balls, balls and in contact therewith, ways spectively supporting said balls received Lby or guides .re-

or guides substantially parallel to the path of reci procation of said member for contact with said balls and means for of said bearing said ways orguides,v

-as described.

VV1i. The -combination of a member confined in said'coxif" tact, plane surfaces on said .last-named Ways'` j listing said last-named Ways'or guides ueal'er to or farther from said member, substantially as described..

5. The combination of a reciprocating mem ber,A Ways or guides borne by said member," plane surfaces parallel to the path of reciprocation'of said 'member on said ways or guides for contact with the' balls, balls in contact therewit h,-ways or guides respectively supporting said balls in said contact, plane surfaces on said'last-named ways or guides sul)-` stantiallyparallel to the path of reciprocaiolili of `said member for contact with said a s, formly adjustingsaid last-named ways or guides nearer to or farther from said member, substantially as described.

and means forsimult'aneonsly'and unisimultaneously ad l Sol 6. The combination omweg-nunmal reciprocating member, a. ball-bearing therefor, said the path lof reciprocationof said member, and two sets of balls interposed. between said guideways and', said member, and means for assembling-each ofsaid twol sets of balls in its-plane respectively'transversely to the path ofreciprocation of said member at eachend 95f of each, 'stroke thereof, siibstantially'as de-' scribed.

.7. The combination of alongitudinal-recip .bearing consisting' or guideways Parana to roc'ating member-,a ball-bearing supporting and guiding said memberat all .times at points l distant from leach other along the path of re `ciprocation thereof. and means for centrally and uniformly regulating the pressure be` tween the balls of said1 bearing and said mem-y ber, substantially as described.

, 8. The combination'ofa longitudinal reciprocating member, a ball-bearing supporting` and guiding said meinber at all -times at points distant from each other along the path of re- 'ciproeaticn thereof and means for adjusting Athe balls of said bearing simultaneously and'` uniformly toward or described.

9. lThe combination of a member confined and controlled by a ball-,bearing to longitudiaway from' the longitudnal axis'of said member, substantially as a straight line, the said ball-bearing, and

nal reciprocating movement in substantially a straiglitline, the said ball-bearing, and `means for adjusting the balls of said bearing simultaneously and uniformlyn toward or away from the longitudinal axis of said membei-for purposes of adjustment, substantially and-controlled by a ball-bearing to longitudi- -nal reciprocating movement in substantially to the longitudinal axis ot said member andy adapted to maintain the balls in contact therewith and two sets of balls interposed bemember, a ball-bearng therefor, said ballbearing consisting of two or more sets of balls normally in contact with said member in planes transversely thereto, and g'uideways adaptedto maintain said balls in contact with y said member substantially at all times, and

, ciprocating member, a

' of said member at each end between rocating member, substantially as described'.

sembling each set means for moving the guideways 0E the balls simultaneously and uniformly toward or away from the longitudinalaxis of there'ciprocating member, substantially as and for the purposes described. Y

13. The combination of a reciprocating member, stops in s aid member adapted to maintain eachvset of balls at all times out of contazt with the other set of balls, guideways parallel to the motion of t ereciprocation of said .member and adapte tohold two sets of balls in contact therewith, two sets of balls interposed between said-guideways and said reciprocating member,' and means for centrally and uniformly regulating thepressure the balls of each set and said recip- 14. The combination of a longitudinal re-A ball-bearing therefor, said vbearing consisting of .guideways parallel to the longitudinal'axisof' said `member and adapted to maintain the balls in contact therewithland two or more sets of balls interposed between said guideways and said member, means for regulating the pressure between said balls and said member and means for asvoi? balls respectively in its the'longitudinal axis of each stroke thereof, substantial] y as and for the purposes described. l

15. The combination of a. longitudinal rea ciprocating member, a ball-bearing therefor, said bearing consistingpf guidewaysparallel to the longitudinal axis of said membery and adapted to maintain the balls in contact with said member, Iand two sets of balls interposed between said guideways and said member, means for centrally and uniformly regulating the pressure between said balls and'said plane transversely to `Band member and means for preventing the escape' of the balls at both `ends of the guideways, substantially as described.

l 16. The combination of a reciprocating member, stops insaid member to compel the assembling of the balls, two guideways each "parallel tothe motion ot reciprocation of said y l member and adapted to holdtwo sets of balls in contact with said member, and `each provided with stops to limit the rolling of the balls, two sets of balls interposed between said guideways and said 'reciprocating member and means for moving the guideways of the balls simultaneously and uniformly toward or away from the longitudinal axis of` the reciprocatingl member, substantially as and'for the purpose described.

17. The. combination of reciprocating piston-rod B, having grooves formed thereon by planes Z', "m, fn', o', p', q', r and s', balls l, 2,

4,'balls 5, 6, 7 and having grooves formed therein by planes l, m, fn, o, p, q, r and s, holders F, F', right-andleft screws h, h', h", h", gears t', fi', t, i'", j, j",j",j.", shaftslc, lo and hand-wheels t, t', all constructed and operating substantially as and for the purposes described.

8, guideways a, b,

Vl'a. The combination of the reciprocating rod B, having grooves formed therein by planes Z; m', n', o', p', q', r', and s', stops v, fu', o, uf', balls 1, 2, 3 and et, and 8, guideways aI and b, having grooves formed therein by planes Z, m, 01,0, 19,11, r, ands, stops z, z', z, z",holders F, F', rightand-left screws h, h, h", gears t, 1)', t' 1, all constructed and operating, substantially as described.

' 19. The combination of reciprocating pis-h ton-rod B, having grooves formed therein by planes Z', m', n', 0,p', q,r and s',. balls 1, 2, 3 and 4, and balls 5, 6, 7 and 8, guidewaysa and b, having grooves formed therein by planes l, m, n, o, p, q, r and s, stops u, u', at each end of guideways a, and b, holders F, F', and means for moving guideways a, b, ofthe balls simultaneously and uniformly toward the longitudinal axis of rod B, substantially as and for the purposes described.

Witnesses: G. H. PATCHEN,

- IRVING S. OARMER.

and hand-wheels t, t',

bans 5,.;6, 7,' a5

Il 'lll rco

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