US994384A - Mechanical movement. - Google Patents

Description

G. GROSVENOR. I MECHANICAL MOVEMENT.

APPLICATION FILED MAY 15,1905.

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GRAHAM GROSVENOR, OF NEW YORK, N. Y., ASSIGNOR T OTIS ELEVATOR. COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MECHANICAL MOVEMENT.

Specification of Letters Patent. 1 Patented Ju ie 6, '1911,

Application filed May 15, 1905. Serial No. 260,387.

To all whom-it may concern:

Be it known'that I, GRA AM GnosvENon, a citizen or the'Unitcd States, residing in "the borough of Manhattan, in the cit of New York and State of New York, lave invented a new and useful Improvement in Mechanical Movements,- of which the following is a specification.

invention relates to a mechanical movement embodying an actuator and an actuatable member, capable of being oper- 'atively connected with and disconnected from each other with the result that the actuator may be rendered efiectual or inefr' fe'ctual to actuate the other said member.

The present mechanical movement embraces a transmitter interposed between the actuator. and the actuatable member, and

adapted to pass over at least either one of two paths during the prescribedmovement of the'actuatorg that is to say, the direction.

of movement of this transmitter during a period of rest of the actuatable member, is

differentfrom that which it takes when the latter member is designed to move. For con 'venicnce, the transmitter is permanently connected to both the actuator and the actuatable member, so that when the transmitter is caused or compelled to follow a predetermined or prescribed path, (otherthan that due solel to its connections,) motion is transmitted rom the actuator to the actuatable member through said connections. Such transmitter is conveniently 1n the form (and in this form it is herein illustrated) of a link, having a pivotal connection with the actuator and piv'otally related to the .actuatable member; During the movement of the actuator while such link is restrained in its movement only by the connections aforesaid, it plays idly about its pivots without imparting motion to the actuatable member. \Vhen, however, the transmitting link is constrained to follow a different path than that which it has under these conditions, motion is transmitted from the moving actuator to the actuatable member. Such constrained motion of the link may be effected in various ways; for instance,'by the positioning of one ormore guide surfaces along which a part moving in unison with the said link is compelled to travel during the movement of the actuator.

One of the most useful of the applications which I have devised atthe present time for my present invention,'is that of a door-lock of the character adapted for use in connec tion' with those elevator systems in which it is desirable-that the locking bolt should be incapable of being thrown from its looking position at such times as the car is not at the given landing or floor entrance, but in whic it is desi ned that the turning of the knob spindle w en the car isat the floor shallrserve to draw back the bolt. In the drawings accompanying the. prescut specification, Figure 1 IS an elevational view of an assemblage of parts which em-.

bodies the present invention, the latter being shown in an application adaptedto fultil the conditions obtaining for a door-lock used in'connect-ion with some elevator sys tems; the cover plates of the respective casings holding the pivoted locking bolt and the electrical contact device being removed, and the bolt being indicated in its locking position with the associatedparts in a corresponding position. Fig. 2 is a view sin1ilar to Fig. 1, but indicates the bolt as withdrawn from its locking position, while the position of the associated parts corresponds thereto. Fig.- 3 is a view on the plane of the line 3, 3, in Fig. 2, looking in the direction of the arrow adjacent to that line. Fig. i is an elevation of the knob spindle with the parts mounted thereon. Fig. 5 is a sectional view of the parts in Fig. 4. Fig. 6 is a dc- Similar characters of reference designate corresponding parts, in all figures.

The present mechanical movement comprises an actuator and an actuatable member,,so constructed and related to each other and to an interposed transmitter'that the actuator --may be rendered either operative or-inoperative to actuate the said actuatable member; that is to say, the moving actuator ment of the actuatable member or be ineffective to change the condition of the latter with respect to its tion. Such results are accomplished through the medium of an interposed transmitter, related or-- connected to the actuator and the actuatable member in amanner such that when the resultant movement of the transmitter is d etermined only by the motion of theactuator and the nature ofthe transmitter connections,

her is not infiuencedby the actuator. When, however, such transmitter is constrained to follow a definite and predetermined path t through the instrumentality of a guide sur-.

face or surfaces shiftable into and out of position, the actuator andthe actuatable member move in unison. Y

In the illustrated embodiment ofthe in vention, the actuator is in the nature of an angularly movable arm, the actuatable mem her in the nature ofa plvoted part, and the transmitter in the nature of a link interposed between the two. r Referring to the 'drawmgs, suchaetuator armis designated -by'2, the same being mounted to turn about. an axis 2. The actuatable member or lever 3 is pivoted to turn.

about an axis 3, while the transmitter link 4 is pivoted to the actuator arm at 4, a connecting link 5 being, in this instance, in-

terposedbetween and pivoted at 5' and 5",'

transmitter link and lever 3. Thelinks 4 and 5 constitute means respectively, to, the

for transmitting motion from the actuating arm" 2 to the actuatable member 3. It is evident -from this relation 7 that the angular movement of arm 21throu h an arc insuflt cient to bring thecenter lines. 'of the transmitter and; connecting link .in alinement,

I merely-changes their angular relation to In this instance,

pivot-4, the extension will each other and is ineffective to operate lever 3 said-links merely during such motion. If, however, link 4 is compelled to follow a path dififerent from that which it traverses under the above COIiditions, motion may, under such I circum-.

stances, be transmitted from arm 2 to arm 3.

either be accompanied by the movestate of rest or mothe actuatable meinwith axis" 2';

turning upon their pivots the transmitter link is,

when arm is turned. -If, however, a guide downward. movement ofthe extension, the latter will, during the fixed angular relation guide or stop, shown at 7, consists of a partxor arm '8, pivoted to turn about axis 2.

is assured by the. action of a spring 9'1nterposed between an abutment 10 -wing 11 rig1d'with'theactuator arm '2, the tens on of this spring tending to forcethe inner edge of the link extensio'ne contacts with a fixedior limit stop ;12,. a safety stop 12' being alsoprovided with which arm 2 is adapted to contact. It is to be noted in this spending, stop, such 1 .edgesare concentric This bein the relation ofthe parts, it is evident that y shifting'the' stop 7 .from it's inoperative to its operative position, or vice versa, thoactuator may be tendered'at will either operative orxin'operative to actuate the actuatable member. One of the most usefuladaptations of this movementfwhich I contemplate at the preslockcontrolling the ingress to and egress from an elevator shaft. The mechanical movement is shown in a mechanical environment calculated to fulfil conditionsbbtaining-in those elevators in which .when a car is' not" at a givenlanding, the lock of the door leading therefrom to the elevator well cannot be unlocked even t-ho'ugh the knob spindle be grasped and turned by the electric circuit is preserved until the car stops at the landing, at which time the .turning-of the s indle readily relcases'tbe lockpower, circuit. That is to say, in the resa block '13 through which extends. the usual squared shaft 14 I die rotatably mounted in casing 15, while rigid with the 11-. The actuatable member} is here in the nature of a-swinging locking bolt, also journaled within casing 15 and playing through an opening 16 in the end plate 17 of thecasing. Opposed (mounted in jamb). The present locking bolt isadapted The niitlal position .of the parts .:(Fig. 1,)

and an ear .or

parts into a positlon in which the are-shaped instance that since the inner and outer edges.

of the 'curvedextension 6' are each adapted to travel at times in'contact with a -.cor'resystems, of electrically operated the individual. The. doorremaif s locked vand the continuity of ent embodiment, the actuator 2extend's gm" constituting the knob spin-,

or on the door framing or not only for a swinging but also for a sliding door; whenused for the latter purpose. the

or stop is interposed in the path of such turning of arm 2, 1 travel along the surface of such guide or stop, and lmk 4 remainingin more or less. to arm 2 will compel the movementof arm 3. In this instance the shoulder formed by the edge'ofa shiftable enttime,'i s that of embodiment 'ina dooring bolt, an fat'thc same instant breaks the said block is the aforesaid car to the casing 15 is a casing 18 bolt-is provided witha laterally extending lug 19 adapted to engage with the lower edge of the bolt opening 20 in the casing 18. The locking bolt 3 here serves the additional purpose of establishing, when in its locking position, the electric circuitthrough the lock, and when withdrawn fromsuch position: the breaking of such circuit is occa. -'sione'd. These results are brought about by interposing in the path of the bolt adjacent '--to the terminus thereof (when the bolt is -movi ng to its locking position) a pair of contacts 21 mountedin casing 18 and springpressed toward each other, these contacts being connected to leads in any desired man- .ner. Preferably, also, that a portion of the bolt which impinges against and forces the contacts apart is insulated from the other portion thereof, see insulation 22; Means H are shown for positively holdingthebolt in its-locking position and-assuring its proper functioning with the contacts during such timeas the car isnot at'the'landing .or .ap-

. preaching the-same. 3 Such meariscomprises 2,5' an .arm 23 adaptedJwhen-in the position iii-- dicated in Fig.1 w, prevent the rise of the bolt away fromthe contacts and shiftable to "so related as to permit the bolt to'be withdrawn) such as thatdndicatedin Fig; 2.

Arin 23 is secured to a shaft 21 mounted in casing 18 and extending into the elevator.

sliaftwhere it is provided-with-an arm 25 carrying a cam roller 26 adapted tocotiperate with a cam on the car, in a manner to be described later. A returning spring 23' for arn'i 23, etc., is shown. This arm may, as indieated, have its end or bolt-contacting portion insulated from the body thereof, see in- {0 sulation 26.

It is through the instrumentality the cam .on the car that the before-mentioned guide or stop 7 is shifted from its inoperative to its cotiperative position, the means here provided for enablingthe cam to act .in this manner comprising a slide bar 27 pivoted at one end to a finger 27', rigid with stop or uide bar 7 and guided to follow a t9 and r0 movementby guides 29in line with an opening 30 in the casing 15, Disjgosed in cooperative relation with the slide i ar 27 (when the door is in its closed position) is a slide or plunger 31 mounted .in

f, 'guides 32 in the casing18, and adaptcd' when moved forward to push the slide bar 27 to the left in Fig. 1. A rcciprocart0ry' movement is imparted to slide 31 as the result of the vibration of an arm 8-3, whose free, end" is operatively connected to the '6\)=.'slide.-' In this instance a' roller 34 mounted on-the arm is located between ribs 35, 35 on the slide.- Arm 33 is mounted upon a shaft 36 journaledinthe casing '18 and extending towagd the elevator well. The turning of "a position (when the mechanism should be this shaft counter clockwise in Fig. 1

"(through the operation of the car-carried cam) serves to shift arm 33, and hence slide 31, forward. To compensate for such a shrinkage, etc., of the door, or its casing, or both, as results inincreasing the width of the space between the edge of the closed door and-the casing,,and maintain, nevertheless, a proper operative co'ndition'of the lock mechanism, I prefer that 'the total range of designed movement of the slide 31 when first set up,-shall be an amount in excess of that required to thrust back the slide bar 27 to its proper stop-positioning condition. Under s eh circumstances the movement of the slide will be sufiicient-toaccomplish its designed urpose ev en though, in course of time, thehisspe'ctive casings separate from each .otl e tent. Such an over-movement of the slide is here rendered possible "by the employment of a clutch between shaft 36 and arm 33."-A"convenientclutch construction is illustrated in Fig. 6 in-whichit willibe seen that the hub portion-flflofarm 3-3 is pressed firmly against a collaif40 (rigid with shaft 36) by a spring l' inter osed between the end of a barrel 42Iandlt e hub portion .of

the-arm 33, the thrustbeing-here taken by the opposite end ofthebarrel and the said hub portion and collar preferably having ratchet-or corrugated friction surfaces. It is evident from -tthisj construction 'that'the arm-{13 carryingcamroller 44 may move independentlyof arm 33. A, returning spring/15 for arm .33-and,slide 31 is indicate'd. Y

The cam on the car for effecting through r toa considerable exthe vertical travel of the latter, the-turning of shafts 24 and 36, isin the nature of a suitable fixture provided with oppositely facing walls with whichthe cam rollers are adapted to .bebrought in contact. 'Rcferring to the indicated cam which is illusis an .oblique o'r inclined portion 47, one of whose walls 48 is the operative wall for throwing therollers to the right in Fig. 1,

while the oppositewall 49 of the inclined portion at one or the-other end of the cam serves to assure theireturn of the rollers,

from the position indicated in Fig. 2 to their initial position indicated in'JRig. 1'.

Connecting the portions 47, 1.7 is a portion"- 50. whose walls extend in linefwith the direction of car travel, and serve to hold the rollers in their shifted position whilethe car is at rest at the landing.

' shafts in stationary condition while the-can .is at the landing, the movement of the car f It is apparent from the foregoing relation of ,the cam parts that while the shafts 24 and 36 are turned .to release the locking bolt in the manner described and to retain the in either direction fron'rthelandingassures the return movements of the said shafts, and

thereby the arm 23, and slide 31 to their ini-' tialpositionsb Slide bar 27 is provided with a returning spring 52.- The protruding end of slide 31 is preferably of a width and the door is. sti-ll closed as shown in Fig. .2, the bar 27. occupies its l and theextension 6 isconfined between the pins 55, 55' carried by the arm 8. Now. when eft-hand position the knob spindle 14 is turnedagainst the resistance of the spring 9, the extension 6 1nust travel over a ath determined'by the pins 55, 55, and, t ei'efore, the locking bolt or' actuatable member 3 will be withdrawn from the keeper casing 18; so tliatthe door may-be opened. It should be noted tl iat by reason of the luglt), a sliding doormay be looked as well as a swinging door. The

the lockin tion and t e eircuitposition. Upon opening the door the spring holding device-comprising the arm 23. andspring 23' is an additional means'to' insure ser' in circuit-closing 52 forces-the slide bar 27 .to' the .rightto' the position-shown in Fig. 1, and if the spindle 14; is then released the spring!)- would move the arm 2 upwardly-. .During this movement.

the extension 6 would bear against the fixed r .i'stop 12, and, :therefore, as the-pivotal 4' moved upwardly-,th'e pivotal int 5 inoves'upwai'dlythrowin the olt to-lo cking position. To lock the olt against movement in 'this"maniier to locking position when the door is opened and the spindle released, latch mechanism is' dcpendedupon.

It will be noticed that the pins -,and 12 are about thesainedistance from the center of the spindle' l i and the are of movementof theextelnsion 6 is on the spindle-as arcente To look the bolt-against movementfrom its unlocking position-solong as the door remainsope'i the extension 6 is recessed at 53. This recess is intended'to fit over the pin 12 to hold the parts from movement, but.

to permit this the end of the extensionv (i is .cut away at 5&- so thatwvhen the door is opened and'the arm 8 moves to theleft, the

pin 55 then opposite the portion fiatlwill hot- .intei'fere 'with suflicient upward movement bolt being held iii' ii'oper posirwi' 1 be moved to theleft'automatically, the

aleoof the extension 6-when'the 'spin e is're-i leased to permit the recess 53. to seat itself on the-pin-12 and thus act as a. latch device. 1 In-other words, when the locking bolt is in its unlocked position, recess'53 1S opposite stop pin 12, but the walls of-the recess are' prevented. from impinging againstthe pin by the fact that a laterally extending-pin 55- rigid with the guide or stop 7, bears a einst the full portion of the inner edge of t eex- L tension 6. When, however, ,the door is opened and theslide bar 27 "movesto the right under the action spring, the flattened or cut away portion 54 of the 'exte 'i- 5 sion 6 comes opposite the pin.55, and if the spindle is released, the extension .6 is moved upwardly and the walls of the recess 53 are brought against the sto inu12; the

locking bolt is thus efiectual y eldagainst movement away from its-unlocked position -while the doorremains open. Upon' closing the door, the slide'bar 27 isgthrus't back by reason of its being beveled at its outer end, and the 55-acting upon the inner edge of the extension 6 as-a- 'cam, withdraws ,v A

the extension from the stop -1 2and leaves the boltfree, to .be locked automatically bythe The extension?-iflirdyidd with a naially extending web 56 in'the path; offmovement oftheextensiorrti td-f reventl'the latter from moving too" far in t e downward di rection and to act as a. camon such extension to insure .it's'passagebetween the pins 55, 55'."

*- This web doesnot extepd'to the outermost end of the extension 7, as shown in Fig. 2,

but -is of suflicient lengthto'eifect its "pur-r pose. '-If the arm 2 is held in the -positi on shown in Fig9-2, and an elevator carj carryin the cam B approaches, the'sli'de bar 27 web 56 will engage the extension d'and move n the same. between; thetpins 55, y 55". This I will cause thtrtransinitter link 4: to'bemoved downwardly nibout v 4' as a ,fulcru n, which results in the down-wardmovenient of-the transmitter link- 5 and the upward mo'v e I meat of the ac'tuatable' member 3,}the latter having already been-released bythe cam B moving the arm 23 to the left therefrom. e

Obviously those skilled in" the art mayv make 'variouschanges in the details and arrangeinent of parts without departingfrom the spirit andscope of my'invention, and'I desire, therefore, not to be limited to the -precise constructionherein disclosed.

Having described. my invention, I claim;

In a device of the eharaeterdescribed, the combination of an actuator arm, an

actuatable lever, atransmitting linkpivoted I at one-end to said actuator arm, a. suspension the transmitting linkand said, actuatab le .lneiiiber, and a guide shiftableinto and out 1 link interposed between the oppositeend of of position to control the movement of the transmitting link.

2. In a meidianical movement, the coinhination with an actuator, of an actuatable member, a tfansmitter connected to the ctnator and to the actuatable member, said transmitter having a curved extension, means "for hunting the play of said extension about its connection with said actuator, and a movable guide for limiting the path of travel of said evtension in the opposite direction.

In a device of the character described, the combination of an actuator,an actuatable member. a transmitter link, a part rigid therewith, a stop for hunting the play of said part in one direction, and a shiftable guide for limiting when positioned the play of the part in the opposite direction.

ln a device of the character described, the combination of anactuatonanactuatable member, a transmitter link pivotally mounted on the actuator and having a curved extension, a stop for limiting the play of said extension in one direction aboutits pivotal connection, and a shiftable g'nide for limiting when positioned the pivotal turning of said extension in the opposite-direction.

5. The combination of a pivoted actuator arm, a pivoted actuatable member, a transmitter link pivotally mounted onthe actu ator arm, a suspension link interposed between the transmitter link and the actuatable member, said transmitter link having an extension, means eotiperative with said extension for limiting the pivotal turning of said transmitter link in one direction, and a shiftable guide 'for limiting the pivotal turning of the transmitter link in the opposite direction.

6. The combination of a pivoted actuator arm, a pivoted actuatable member, a transmitter link pivotally mounted on the actuator arm, a suspension link interposed between the transmitter link and the actuatable member, said transmitter link having anex tension, provided with hearing faces concentric with the pivotal axis of the actuator arm, means cotiperative with said extension for limiting the pivotal turning of said transmitter link in one direction, and a sliiftahle guide for'limiting the pivotal turning of the transmitter link in the opposite direction.

7. The combination of a pivoted actuator arm, a pivoted actuatahle member, a transmittcr link pivot-ally mounted on the actuator arm, a uspension link interposed between the transmitter link and the actnatable mmnhcr, said transmitter link having an exliilsirm, means cooperative with said exten- ;ion for limiting the pivotal turning of said .ransinittor link in one direction, a shiii'table {aide for limiting the pivotal turning of the transmitter link in the opposite direction, and acam-controlled slidefor shifting said guide. v

8. The combination with a door of apiv I oted actuator arm, a bolt connected thereto, a transmitter link pivot-ally mounted on the actuator arm, a suspension link interposed betweenthc transmitter link and the bolt, said. transmitter link having an extension,

means cooperative with said extension for limiting the pivotal turning of said transmitter link in one directiorn fa shiftable guide for limiting the pivotal turning of the transmitter link in the opposite direction, and means for holding the bolt in its unlocking position while the dooris open.

9. The, combination with an actuator, of an actuatable member, atransmit-ter, a guide for directing movement ofsa-id transmitter,

and means co-acting with said transmitter '12. The'combinationwith an actuator, of i an actuatable memberga transmitter, a guide for said transmitter, means co-acting with said transmitter to hold said actuatablemember stationary, and means for shiftingsaid guide automatically. r

13. The combination with an actuator, of an actuatable member, a transmitter interposed between said actuator and actuatable member, a guide for said transmitter, means for shiftin 'said guide, and means for with-' holding said actuatable member from movement. 7 I

14. The combination with an actuator, of an actuatablemember, a transmitter connected between said actuator and actuatable member, a movable guide for said transmitter, apparatus for moving said guide into operative position to permit said actuatable member to be moved, means for restoring said guideto normal position, and

latch mechanism co-acting with said transmitter for holding said actuatable member in one of its positions,

l5. The combination with an actuator, of an actuatable member, a-tra-nsmitter, a guide for such transmitter, a latch for holding said member in one position, and means for moving said guide to permit said member to be moved to another position.

16. The combination with an actuator, of

an actuatable member ting motion from said atable member, means mean actuat for locking said actutwo subscribi atable member in a gredetermined position,

releasing means, an

D means for rendering operative said transmitting means upon the locking means being released Witnesses In testimony whereof I have signed my specification in the presence 'of 11 witnesses.

RAHAM GROSVENOR.

Pmnson L. WELIS, GERTRUDE FINGER;

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