US1540143A

US1540143A - Apparatus for manipulating globes

Info

Publication number: US1540143A
Application number: US714041A
Authority: US
Inventors: John O Pierpoint
Original assignee: JOHN J PIERPOINT
Current assignee: JOHN J PIERPOINT
Priority date: 1924-05-17
Filing date: 1924-05-17
Publication date: 1925-06-02
Anticipated expiration: 1942-06-02

Description

June 2,

J. O. PIERPOINT APPARATUS FOR MANIPULATING GLOBES Filed May v1 June 2, 1925.

J. O. PIERPOINT APPARATUS FOR MANIPULATING GLOBES ATTORNEY 2 Sheets-Sheet 2 Filed May 17, 1924 Patented June 2, 1925.

, UjNiTED STAT-Es PATENT ferrie-QE.

JOHN o. riERroiNfr, or PANA, anuncis, AssiGNoR 'oFoNE-HALF 'ro JOHN J.

rinarorNrr, .or rami, irrinnxiois.y

'APPARATUS ron' MANIPULATING GLoBEs.

Application fiiednay 17, 1924. semaine; 714,041.

To all whom t may concern: f

Be it known that I, JOHN O. PiERPoiN'r, a citizen of the United States, residing at Pana, in the county of Christian and State of Illinois, have invented a new and useful Apparatus for Manipulating Globes, of which the following isa specification.

The invention `relates to apparatus for manipulating electric lightfbulbs located at remote and relatively inaccessible places with a view to the mounting thereof into their sockets or the. removal 'thereof from their sockets, either in whole or'broken state, for replacement.

The invention generally has for its objectk to provide apparatus of the class stated which is more simple and economic to manufacture and more easily operable for accomplishing the intended' purposes than-apparatus of like character heretofore produced.

In its more detailed nature, the vinvention seeks to'prov'ide apparatus of thev class described which embodies particular structural features by the utilization of which the general objects above related are accomlplislied and which provide a structure :par-

preventing all tendency of such parts 'to bind or become inoperative. i

lith the above, and other objects vin view, the invention still further resides in those novel details of construction1 combination and arrangement of parts, all of which will be fully described7 then be particularly pointed out in the appended claims, reference being had to the accompanying drawings, in which: I

Figure l 1s a side elevation of the invention.

Figure 2 is a plan view ofithe invention,

'the manipulating head adjustment range being shown at a single adjusted position of thetelesco'pic sections.

Figui-e8' is a fragmentary Vlongitudina1 section of the crank or operating'end of the apparatus. i

Figure '4 `is a detail cross section taken on the line 4 4 'on Figure f3.

Figure `5 is a detail' cross section taken on the line 5-5 ouFigurefS.k

4Figure 6 is an enlarged detail" sectional view' illustrating the connectionkof the operating crank to the driving shaft end. V

Figure 7 is an -enlarged det-ail longitudinal section of the `invention taken through the position ofthe telescopicl section screw lock-member. f 'i l i i' VFigure 8 is an' enlarged'detailV longitudinal sectioiiof the globe manipulating head end of the apparatus. s

Figure 9 is a view similar to Figure 8,

'the section being taken `through a plane at right angles to that .on which Figure f8 taken, and'illustrates an angle adjusted positi-on of the vhead end.

Figure 10 is a Vdetail cross `section taken,

on the line 10-10 of Figure '8.

Figure .1l iis a detail view, partially in section, of a globe Ybase removing .attachment. p

Figure 12 is a detail cross section taken on 'theline 12-12011 Figure 8.

Figure 13 is a detail crossisection taken on the line 13-'13 on Figure 8.

FigureV la is a detail perspective view of one of the transmission gears.

'Figure l5 is va, detail perspectiveview of one of the globe gripping linger member attachments.

In the drawings, in which like numerals of reference indicate like parts in all of the gu'res, l indicates the main housing tube section and 2 the main driving shaft section which is hollow and square in cross section for a purpose that vwill later be apparent. 1 c

The main housing tube section l is joined, by the U shaped frame portion `-3, secured to the thereofby the split clamp head 4;, to the angle supporting arms 5which. are iirturn secured ito the securing head 6 car-` ried 'by the fsaid shapedframe land also t-o the bow shaped supporting or rest memv ber 7, in the manner illustrated inn-Figures 1 and 2 of the drawings. j, f

The U shaped frame portion 3 serves to accommodate the pc'isitioningV of the substantially U shaped operating cranlmember 8, one end of which is secured to the turning head 9, which is mountedupon the projecting end of the main driving shaft section 2 pin-connected thereto as at 10 to cause the said shaft sectionto rotate with the crank. The otherrend of the operating crank has suitable rotatable bearing, as at 11, inthe securing head 6, see Figure A telescopic housing-tube 12 is provided which is of a dimension for freely sliding within the main housing tube section 1 so as to-be telescoped thereinto for purpose of adjustment, see Figures 1, v2 and 7. The outer end of the main housing tubev section 1 is provided with a taper threaded portion 13 which is split at intervals, as at 14:, so that when the internally taper` threaded screw lock member 15 is screwed tightly home upon the threaded portion 13, the split ends ofthe said tube section 1 will be forced into tight frictional engagement with the telescopic tube section 12 to tightly secure the same to its adjusted position.

v It will be readily understood by referencey to the figures just above mentioned, that by reason of providing the 'telescopicsections and the means for locking the same, the housing` of the apparatus may be extended or retracted to any desired adjustment within the limits controlled by the dimensions of they said telescopic parts, thus making it possible to grea Naturally, by reason ofv providing the telescopic sections, means must also be provided for longitudinally adjusting the drive shaft mechanisms, and for this purpose I have provided a hollow square driving shaft section 16 telescoped within the main driving shaft section By reason ofr providing the telescopic sections 2and- 16,- the drive shaft maybe longitudinally extended in accordance with' the housing sections and by reason ofthe said shaft sections being square, rotation thereof is asreadily effected in extended-aswell as in contracted positions. l n A Upon the outermost end of the telescopic drive shaft section 16v is mounted acrown gear member 17 by reason of havingv the sleeve 18 thereof secured upon the saidy shaft and in a manner for causing the said crown gear member to rotate with the said Ashaft section. The Vsaid sleeve 18 of the crown gear member provides suitable bearing inV the outermost endof the telescopic housing tube section 12.,` Y n Thus far, vI have described the driving shaft sections'. It shouldbe'understood that tly vary theA range vof usel of the invention.

the driven shaft and globe gripping ele- .ments are cooperativefwith ythe driving shaft features to be driven thereby, the power transmission devices causing the driving shaft v'sections to cooperate with the said driven shaft and gripping mechanisms being-such as will permit a great range of angular adjustment of the relation of the driven shaft with the said driving shaftsections. To accomplish this purpose, I provide a "second crown gear member 19 positioned for meshing with the above .inentioned

crown gear member

1,7, the said second named crown gear member having the sleeve portion 2O thereof pin secured as at 21 to the sleeve member 22 whichv in turn has the outer endthereof pin-secured as at'23 to the driven shaft section24.

A pivot head 25 is secured upon the outermost end of the telescopic housing tube section 12 and the said head is provided withk extended apertured pivot ears 26.l A similarly shaped pivot head is mounted upon thesleeve portion 20 ofthe crown gear member 19 between the shoulder formed by that member and the shoulder formed by the adjacentend of the sleeve 22 in such a.

mannery that the crown ygear member 19 is `freely rotatable inthe said head member, longitudinal movement thereof'being prevented by shoulder engagement, as explained. The second pivot head member 2T is provided with extended pivot lears 28 which have ,internally threadedy apertures adapted to cooperateV with the apertures of the ears 26 of the pivot fhead 25 to receive Vthe threaded ends of the wing head pivot `screws 29 whichare passed through the apertures of the said ears 26 and threaded into the threaded apertures of the ears 28. It will be observed that the position of these ears is-slightly tothe side of the breaking axis of the meshing crown gear members so as to permit arcuatey adjustmentvof the driven shaft and the gripping' members, on that particular plane, through' the range of adjustment generally `indicated in Figure'2 of the` drawing, it being understood that this plane of movement may beV adjusted-tojany point around the axis of the hou:- ing members by. loosening the screw lock member 15 and axially turning the telescopic housing tube section 12 'within the main'housing tube section 1 to the desired adjustment. Thus the driven ,shaftA and gripping headmay be universally adjusted through the arc of adjustment indicated in. the figureV mentioned, the manner of meshing of the gea-rs' being indicated in Figure 9 of the drawings.

Upon the outermost end of the driven shaft section 24 is secured a fixed cylindri-l cal head. 30. A slidableor movable head 31 is slidably mounted upon the said driven shaft and has y.the free end thereof shaped lli? ILSU

ttl

ytoV abut the fixed head when in the normal `or gripper finger closed position, and being provided with an extended abutment headV of the spring* 36 which is coiled about the driven shaft section 24 between the cups 37,

one of which abuts` the outermost end of the sleeve 22, the other the head 32, see Figures S and 9.

The sleeve 22 is provided with an opposingr pair of longitudinal slots 38 through which pass the cross nin 39 which is connected to the free ends `of the stirrup 35,

shown. f

Operating links 40 arepivoted at 41 in the bifurcated extensions 42 of the slidable head 3l and as at 43 in the bifurcated eX- tension 44 of the individual finger carryingr arms 45 pivoted at 46 upon the fixed head 30 in a manner for providinpgan annular space 47 surrounding;` the said head. Y

Each of the individual carrying arms 45 is `provided vwith a pair of apertures 48 adapted to removably receive the securing ends 49 of the globe gripping fingers 50 which are each bent up from a piece of stout wire and suitably covered with rubber or leather to prevent fracture of the ,gloves-being` manipulated. One of the gripping' finger members is illustrated in detail in 1F igure l5 of the drawings, and it should he understood that the securing1 ends 49 are spring` spread so that lwhen they are drawn together and inserted into the receiving apertures 48 they will be retained by Afriction and also that the said gripper fingers maybe made of various sizes for effectively engaging varied sizes of globes, by reason of being; readily demountable from the' carrying arms.

It will be observed by reference to Figures 8, 9 and 13. that the cross pin 39 has an aperturedpand enlarged head portion 51 which is slidable within the sleeve 22, the said aperture serving' to accommodate the passage of the gripper linger operating cable 52 and to serve as an abutment for the head secured upon the end thereof and de Vcoil spring`` 54 vwhich serves to protect the same against frictions-1l engfaeement when the parts are adjusted to positions similar to Vthat illustrated in Figure '9ct' thr draww ings, thus permitting; the cable to efliciently function through all positions of the `aps paratuswithout danger of unusual wear due to friction.

Aq cable mllin.O` Orio )er finO'er actuatingV l e :s :o

lever 55 is pivoted at 56 to the front -arm of the operating crank 8 fand a pulley 57 mounted upon the said lever, as at 58, for the purpose `of receiving` the cable 52 as it passes out of `the adjacent end of the drivingshaft section 2, and a suitable windlass or spool'59 for taking up thrr length of the cable in accordancewith the adjusted 4position of the apparatus, is als@ mounted upon the lever, through the medium of the stirrup connection 60. A cross shaft 61v passes through the spool and the seein-ing stirrup,

and thesaid shaft has its opposite ends threaded for receivingl the thumb `or wing` nuts 62 which may be loosened to permit free rotation of the spool to wind lon or pay out the cable as may be necessary, kor may `be tightened to secure the said spool to tired position after the length of the cable has been so adjusted. `The spool has the fianges thereof knurled as Vat -63 so that they may be readily hand turned to effect the paying out or winding; in of the cable, as stated, and

the said klever 55 is extended beyond the connection of the spool 59 so as to constitute a handle vportion 64.V i. j

Thus, it willfbe observed, by, reference to Figures l Vand 3 of the drawings, thatA the lever 55, the pulley 57 and spool 59 move as a unit and, being pivoted toythe cra-nl;

member 8, the whole df the structures just stated rotate with that crank. Thus, it will. be observed as the operator grasps the handle :portion 64 of the lever and swings the ,came yon the pivot, as :indicated inthe said Figure 3 ofthe drawings, 'longitudinal pull will beexerted upon ythe cable, also that when the crank 8 is turned the leverV 55,

`pulley 57, spool 59, shaft sections 2 yand l16,

crown gear members 17 and y19, and the remainder ofthe mechanisms carried thereby will-berotated in unison Vso that no stresses or strain `on the parts will be set up such as would induce breakage or quick wear.

In Figure 11 of the drawings is illustrated the broken globe manipulatingA attachnient, which includes the broken base engaging bit portion 65, which is in the nature of acase hardened steel sleeve having the :outer end shaped to` provide .the .gripping bit, and which is pin connected as at 66 to thel wooden insulating section 67 in turn pin connected asiat 68 to the metaltube or sleeve slotted as at- O and ofa dimension for bei readily insertable into the space 47 surroimding the head 30'W1th the -sa1d slots engaging thev the screw loclr member l5 pivot pins 46. By providing this memberand 'y constructing the saine to be readily mountable and removable to and from cooperative relation withthe apparatus, a means is provided for effectively removing broken globe bases, it being necessary only to rotate the cranlr member S to the left to effect this operation.

An operator desiring to use the apparatus 1 the waist line, and grasping the lower end of the main housing tube section l to hold the device firmly, the operator would grasp the operating crank 8 with the free hand and rotate the same to effect rotation of the driven shaft and cooperative elements in the manner hereinbefore described, after having grasped the handle portion 64 and swung the lever on its pivot 56 to effect the necessary pull on the cable 52 for spreading the gripping lingers 50 and again releasing the same to allow `,the spring to force the said fingers tightly against the globe so that when rotation is imparted to the elements, as just stated, the said globe will be either screwed into or out of Lits soclret,`as the case may be.

In the foregoing, l have disclosed a particularly compact and efficient apparatus which will effectively accomplish the purpose for which the samevis designecl,wvliich is particularly light in weight and in which the parts are so cooperatively constructed and arranged that wear and strain thereon are reduced to the minimum andin whichall of the parts of the device are effectively housed, thus protecting all vof the parts against breakage and wear and contributing to longevity of the apparatus.k From t-he foregoing description, taken in connection with the accompanying drawings,

it is thought that all ofthe novel details of description, the manner of arrangement and the advantages of my invention Vwill be readily apparentto those skilled in the art to which it relates. 'f

l/Vhat l claim is: Y

l. In apparatus of the class described, opposing globe gripping elements, a hollow driving shaft, a hollow driven shaft telescoped into the driving shaft, means toimpart rotation to the shafts, and means passing through said shafts and connected with said gripping elements for manipulating the gripping elements for the purposes specified. in apparatus of the class described, opposing globe gripping elements, ay driving shaft, a driven shaft telescoped into the driving shaft, means to impart rotation to the shafts, levers for manipulating the gripping elements for the purposes specitied'and a cable connecting the ylevers and passing axiallythrough the shafts.

3. ln apparatus of the class described, opposing globegripping elements, a main square hollow driving shaft section, a vtelescopic square hollow driving shaft section, means connecting the shaft sections in rotative relation with the gripping elements,

Ameans for ,imparting rotation to `the shaft "sections, levers for manipulatingthe grip ping elements for the purposes specified, and a cable connecting the levers andp'assing axially through the square hollow shaft sections.v i i' y ln apparatus of the class described, opposing globe gripping elements, a main square hollow driving shaft section, a telescopic square hollow driving shaft section,

means connecting the shaft sections in rotative relation with the gripping elements,

kmeans for imparting rotation to the 'shaft sections, levers for manipulaing the gripping elements for Vthe purposes specified, a cable connecting the levers and passing axially through the square hollow shaft sections, telescopic housing sections, and means for securing the housing sections at adjusted positions. i

5.1111 apparatus of the class described, opposing vglobe gripping elements, a main square hollow driving shaft section, a telee scopic square hollow drivingshaft section, means connecting the shaft sect-ions in rotative relation with the gripping elements,

means for impart-ing rotation to the shaftsections, levers for manipulating the gripping elements for thepurposes specified, a cable connecting the levers and passing axially :through the square hollow shaftsections, and a winding spool for regulating the cable length according to the adjustment of the telescopic sha-ft sections.

6. In apparat-us of the class described, opposing globe gripping elements, a main square hollow driving shaft section, a telescopic square hollow driving shaft section, means connecting the shaft sections in rotative relation with the gripping elements, means for imparting rotation to the shaft sections, levers for manipulating the'grippingelements for the purposes specified, a cable connef'zting` the levers and passing axially through the square hollow shaft sections, a winding spool forregulating the cabley length according yto thek adjustment of the Atelescopicy shaft sections, telescopic housing sections, and means for securing the housing sections at adjusted positions.

llO

7. In apparatus =of theclass described, opposing globe gripping elei'nents, .a ydri-.ving shaft; a ydriven shaft :telescoped into the driving shaft: means to iinpart rotation to the :shafts: levers for linan'pulating the gripping elements for the purposes speci.- fied; and a cable connecting the levers and passing axially through the shafts; said shaft sections, said gripping eleinents, and said levers and cable being .connected ito rotate in unison.

V8. In apparatus ,of the class described, opposing globe gripping elements; a main square hollow driving shaft section; .a telescopic square ihollonTv dniving shaft section; ineans connecting :the shaft sections in trotative relation with the gripping elements; means for iinpa-uting rotation Yto the .shaft sections; levers for manipulating -the gripping elements for Ythe .puuposes specified; a (cable `connecting the clevers and ,passing axially through the ,square hollow shaft sections; a Windingspool for v,regulating the cable lengthfaccording to the adjustment of the telescopic-.shaft sections; `the Isaid shaft sections, said gripping elements, lsaid levers, said cable and Winding spool -:being connected to 4rotate in unison; '.telescoping housing sections; and `means for securing @the housing sections at adjusted positions.

9. In apparatus of .the class described,v

opposing .globe .gripping elements, a 4inain square ,hollow .driving shaft section, a telescopic square .hollow .driving shaft section, means connecting` the shaft `sections in rotative relation with the gripping leleinents, levers for 1nanipulatin,e the gripping eleinents for the purposes specified, .a cable connecting the ,levers and passing axially through the square-hollow shaft sections, a crank foi imparting .rotation .to the shaft sections, one of .the said ,levers being pivoted to Ethe said crank, and a 4Winding spool mounted upon :the leiter pivoted tto :the-crank for ,regulating the cable .length according ,to the adjustment of the .telescopic vshaft sections.

`10. Ign apparatusof .the .class described, opposing vglobe .gripping elements, telescopic sha-ft sections .for .imparting krotation to the gripping elements, .telescopic .housing sectionsfor housing thelshaftsections, a yUsshaped frame ,portion secured tonne housing section, and a V.Uvshaped ,crank secured to one shaftlsectionand rotatableon an gaXis aligning 'with .that `,of lthe l,shaft ,sections vfor mtatnefthefsame.

V11. lnapparatusofthe class described,.qp-` Posing; globe slapping elements, telesepi@ shaft .sections efor irripartng'rotaton to ,the grinning elements, teleseen@ Hellsing Se@- tons ,fer :housing .the shaft sections, a iU- shaped .frame jportferl secured t one .housing section, a aUfshaned prank .secured t0 .011e shaft .section and 'rentable .0.11 an axis aligning with fthat of the .shaft sections for rotating lthe saine, :and `connections includ.- i'ng a cable passing Aaxially ,through 5 the shaft sections for manipulating ,the .grip ping elements.

12. In apparatus of the class described, opposing globe gripping elements, tele?. scopic Shaft lsections for iin-parting rotation to ythe gripping elements, telescopic `housing sections for housing ,the sh aft ise'ctions, a ,U- shaped frame portion securedto ,one housing section, a VU- shaped crank `secured `to one shaft section and rotatableon anaxis aligning with that of Athe Vshaft sections for rotating the saine, :connections including a cable passing ,axially .through the shaft sections for lnanipulating the .grippigng ele- 1nents,.and allever pivoted to thecranl; Eand to which the cable is .connected to be pulled thereby. Y A

13. In apparatus ,of .the class described, opposing-globe Igripping elements, .telescopic shaft sections for impanting rotationto [the gripping elements, telescopic housing sections v.for housing the `shaft sections, a U- shaped frame portion secured rto .one 1housing section, a Ufshaped crank secured :to one shaft sectiona-nd l.rotatable .on an axis aligning With vthat of the Lshaft sections for rotating the same` connections :including a Gable passing axially through the shaftsections for manipulating the gripping `elements, a lever pivoted to the crank andto Which the cableis connected to be pulled thereby, and a Windingspool kfor receiving the cab-le to vvadi'ust-ably secure the cndthereof to Ithe lever as stated. t

14. In apparatus of .the class described, opposing globe gripping elements, ,telescopic shaft sections for imparting; Erotation to the gripping elements, telescopic housing sections for housing the rshaft sections, a -U- shaped frame portion secured to onehousing section, a :IJ-shaped `crank secured to .one shaft section and rotatable on an axis `:aligning with that f-of the shaft `sections ,for rotating lthe same, `connections including a cable passing axially ythrough `the shaft sections kfor manipulating the gripping elements, a {lever pivoted ,to thecranlr and to which the :cable is connected to ,be `pulled thereby, a. Winding spool for ,receiuing the cable to adjustably secure ikthe ,end rthereof to the lever as stated, and means for holding the spool securely fixed and for perzrnitting Ifree .rotation thereof Ito l lsecure the cable in .a @manner permittingadjustment o f its length Iaccording to adj u strnentofshaft ,and housing sections,

15. `An,apparatus -Qf ,theclass described` a driving shaft, a ,driven shaft, ,means iconnctng :the shafts in a manner permitting angular adjustment. a lined head `Oil Vthe drren' Shaft, .a .sldablihead 0.11 the dritten abnormally, a cable for moving the stirrup,

. ing shaft sections, a driven shaft, meansV and gripping elements removably carried by the pivoted arms.

16. In apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft.y means con-V necting the shafts in a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft. means normally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup, and grippingl elements removably carried by the pivoted arms.

17. In apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft, means connecting the shafts in a manner permitting angular adjustment,a fixed head on the driven shaft, a slidable headon the driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup and passing through thedriven shaft sections and the shafts connecting means, and gripping elements removably carried by the pivoted arms. Y

18. In apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft, means connecting the shafts Vin a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup and passing through the driven shaft sections and the shafts connecting means, gripping elements removably carried by the pivoted arms, and means surrounding the cable at the point of passage through the shafts connecting means for protectingthe same.

19. In apparatus of the class described, telescopic housing sections, telescopic drivconnecting thev shafts in a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving vthe stirrup and passing through thedriven shaft sections and the shafts connecting means, gripping elements removably carried by the pivoted arms, and a coil spring surrounfiling' the cable at the point of passage through the shafts connecting means for protecting the same.

20. In apparatus of the class described, telescopic housing sections. telescopic driving shaft sections, a driven shaft, crown gears connecting the shafts in a manner permitting` angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed heady and link connected to the slidable head, a stirrup for moving the slidable head abnormally. a cable for moving the stirrup, gripping elements removably carried by the pivoted arms, and a winding'spool for receiving the cable to regulate the length thereof according to the adjustment of the said telescopic sections.

21. In apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft, crown gears connecting the shafts .in a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means abnormally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup, gripping elements removably -carried by the pivoted arms, a Winding spool for receiving ther cable to regulater the length thereof according to the adjustment of the said telescopic sections, a crank for rotating the shaft sections, and a lever for pulling the cable and for carrying the Winding spool.

22. In apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft, crown gears connecting the shafts in a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means vnormally forcing the slidable against the fixed head, arms `pivoted to the fixedk head and link connected to the slidable head, a` stirrup for moving the slidable head abnor- L mally, a cable for moving the stirrup, gripping elements removably carried by the pivoted arms, a Winding spool for receiving the cable to regulate ,the length thereof according to the adjustment of the said teles'copick sections, a crank for rotating the shaft sections, a lever for pulling the cable and for carrying the yWinding spool, and cross boltv and Wing nut connections for releasablyv rotatably securing the said spool.

23. In apparatus ofthe class described, telescopic housing sections, telescopic drivingl shaft sections, a driven shaft, crown gears connecting the shafts ina manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head onthe driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed head and link connected to the slidable head, a 'stirrup for moving the slidable head abnormally, a cable for moving the stirrup, gripping elements removably carried by the pivoted arms, a winding spool for receiving the cable Vto regulate the length thereof according to the adjustment of the said telescopic sections, a crank for rotating the shaft sections, a lever for pulling the cable and for carrying the winding spool, cross bolt and Wing nut connections for releasably rotatably securing the said spool, a U-shaped frame for accommodating the position of the crank, and a. bow shaped body rest.

24. In apparatus of the class described, a driving shaft, a driven shaft, means connecting the shafts in a manner permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable against the fixed head, arms pivoted to the fixed head being provided With gripper element mounting apertures and being link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup, and gripping elements having ends removably insertable into the apertures of the pivoted arms.

25. In apparatus of the class described, a driving shaft, a driven shaft, means connecting the shafts in a manner'permitting angular adjustment, a fixed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable against the fixedhead, arms pivoted to the fixed head being provided with gripper element mounting apertures and being link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup, gripping elements having ends removably insertable into the apertures of the pivoted arms, the -said ends being spring spread so as to necessitate frictional engagement in the apertures When contracted and inserted thereinto.

26. In'apparatus of the class described, telescopic housing sections, telescopic driving shaft sections, a driven shaft7 crown gears connecting said driven shaft Withfone of said driving shaft sections in a manner permitting angular adjustment, opposing globe gripping elements and means passing through said shafts and gears and connected with said gripping elements to operate the same.

27. In apparatus of the class described, a driven shaft, a fixed head on the driven shaft, a slidable head on the driven shaft,

eov

means normally forcing the slidable head against the hired head, arms pivotedto the fixed head and link-connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for movingA the stirrup, and gripping elements removably.

ed to theislidable head, a stirrup for moving the slidable` head abnormally, a cable for movingthe stirrnp, and gripping elements .having ends removably insertable into the `apertures of the pivoted arms.`

29. In apparatus of the class described,

a driven shaft, a fixed head on the drivenV shaft, a slidable head onvthe driven shaft,

means normally forcingthe slidable againstv the fixed head, arms pivoted to the fixed head being-provided With gripper element mounting apertures and being link connected to the slidable head, a stirrup for moving the slidable head abnormally, a cable for moving the stirrup, gripping elements having ends removably insertable into the apertures of the pivoted arms, the said ends beingspring spread so as to necessitate frictional engagement in the apertures Whencontracted and inserted thereinta 30. In apparatus ofthe class described, a shaft, arms pivotally mounted at one end of said shaft, a slidable head mounted on said shaft and connected with said arms, means normally forcing said slidable head towards said arms, a member for moving n said slidable head abnormally, a lever and a connection between said lever and said slidable head moving member for operating the same, and gripping elements removably carried by said pivoted arms.

JOHN 0. PIERPOINT.