US858789A - Power-transmitting device or mechanism. - Google Patents

Description

No. 858.789- PATENTED JULY 2, 1907.

W. P. BRAOHMANN.

POWER TRANSMITTING DEVICE 0R MECHANISM APPLICATION FILED JULY24, 1906.

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26 I I 10 l l I o g Q 1 WITNESSES: I I ,mvgmonz I 4 'Yyflha 'PErac f I m n No. 858,789. PATENTED JULY 2, 1907. W. P. BRAGHMANN.

POWER TRANSMITTING DEVICE 0R MECHANISM.

APPLIUATION IILBD JULY 24. 1906.

6 SHEETS-SHEET 4.

WITNESSES ATTORNEYS.

$1? T 74 2 THEE-1 HERB 1m i111? No. 858,789 PATENTED JULY 2, 19071 w. P. BRAOHMANN. POWER TRANSMITTING DEVICE 0R MECHANISM; APPLICATION FILED JULYZ'IAIQOG.

6 SHEETS-SHEET 6,

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WILLIAM- P. BRACIIMANN, OF NIIEWARK. NEW JERSEY.

POWER-TRANSMITTING DEVICE OR MECHANISM.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed July 24,1906. Serial No. 327.496-

To rill w/iom. it Htlll/ concern:

lie it known that 1, WILLIAM F. BIL-\(TIIMANN, a citizen of the United States, residing at Newark, in the county of ,l'lssex and State of New Jersey, have invented certain new and useful .llnprovemcnts in lon'cr lransmil-ting Devices or Mechanisms, and 1 do hereby declare the following to be a full, clear. and exact description of the invention snch as will enable ui-in'l's skilled in the art to whicli it apperlnins to main and use the srnnc, reference being had to the accompanying drawings. and to letters of reference marked thereon. which form a part of this specification.

This invention relates. generally, to that class of mechanisms known in the art as frictions which are used with power-transmission devices, hoisting ma ehinery. and the like; and, the Plillvlpztl object of my present invention is to provide a simply constructed mephanisni for the transmission of power, comprising a novel construction of friction and novel and i1nproved means for actuating the friction, all with a view of producing an elliciently operating means which may be used in connection with the friction drum of a hoisting nnuthine or other similar machines, elevator-drunis; or. as power-transmission for shafting, where power is to he transmitted from one floor or room to another; or, it may be used in connection with the transmission gearing of automobiles and other similar machines or engines; and, in fact my invention is capable of use with machinery and mechanisms of the various kinds where one part is to be brought in operative frictional engagement with another part, for transmitting the power from the one part to the other part, without interrupting or shutting off the main supply of the power.

Other objects of this invention not at this time more particularly mentioned will be clearly understood from the following detailed description of the invention. v With the'various objects of the invention in view, the same consists in the general arrangements and combinations of the devices and parts, as well as in the details of the construction of the same, all of which connection therewith a power-transmission gear and the friction-devices for producing the operative frictional engagement of the sliding, drum with the transmission gem. the parts being shown in their normally disengaged relation; and Fig. It is asimihu' view of the same parts shown in their owuntivw-ly connected relation. Fig. 4 is a longitudinal. vertical section, on an enlarged scnie, suid section being taken on line 4--4 in said Fig. 3. certain portions of the supporting frame and the end standards or supportshcingomitted from this view; and Fig. 5 is a detail seclional representation, taken on line 55 in said Fig. 4, looking in the direction of the arrow Figs. (3 and 7 are two perspective. views, respectively, of the upper end-portion of the one standard or support and the be); to be used therewith for producing one of the hearings of the main shaft, said -views showing in connection with said parts, certain huh-portions forming integral parts of said standard and box and each hub-portion being formed with helical wedge-shaped face-portions. Figs. 8 and 9 are the two end-faces of a shifting member, and

transverse sectional representations of the main shaft upon which said member is slidably arranged; and

Fig. 10 is a face view, on an enlarged scale, of a spurgear adapted to be fixed upon the main shaft, provided with a series of adjustable and readily replaceable friction devices, with which the sliding or movable hoisting drum can be brought in operative holding ongagement. Fig. 11 is an end elevation of said spurgear and" its parts; Fig. 12 is a transverse vertical section of the same, said section being takenon line l2 12 in said Fig. 10; and Fig. 13 is a sectional representation of the said device, taken on line 13-13 in Fig. 11. Fig. 14 is a plan view of a power-transmission gear for automobiles, and similar purposes, the same being provided with the various devices and parts which embody the principles of this invention; and Fig. 15 is a side view of a pair of hangers and a shafting provided with a power-transmission device'embodying the leading features of this invention.

Similar characters of reference are employed in all of 1 the above described views, to indicate corresponding parts.

device or mechanism, the same comprising a .pair of end-pedestals or supporting standards 2 and 3, and arranged npon and suitably secured to a suitable founda; tion, base or casting 4 carrying the usual hoisting engine 5 and its boiler 6. Each pedestal is provided in its upper surface with the usual semi-cylindrical -bear-.

Referring now to Figs. 1 to 13 inclusive, the reference character 1 indicates the complete power-transmission contiguous to its semi-cylindrical Deming-portion 7, and extending lrom the upper port of its inner face, with an integral projection which is bounded at the top by the straight marginal portions 12 and I3 and the scmi'cylimlrical brutriug-imrl-lun H, which is in alinement with the booting-{within 7, and also by these-inicylindrical. murginul surfnvu-porliun .5. The reference characters 16 and 17 indiculv a pair of helical wedgeshapcd surface-portions, 18 indicating an off-set or step formed between the lowest purl. IQ of the portion 1'6 and the hi he part 20 oi the portion 17. In u like manner, the bearing-host ll is nnuhwith n projection loving a. pair of helical wedgc-shapml surface-portions 2i :ind 22, forming an ink-grill port of the one side of the bearing-box, 23 being ill! ul'l'oul or step fomnd between the lowust part 2-! of tho pofliun 2] and the high cstpnrt 25 oi the portion 22. "Fire angular inclinntirms oonnectcd relations.

rated by a pair of oppoei 1 extending shoulders. u! o I screws 37', or other quituhlo 55,

of the v'ariona surface-1mm inn: aro such. that when the parts have been scoured in lln-ir mumbled positions, shown in Fig. 5, the uurfru-v-pirllnns 16 and 22, and the surfuce-portions l7 and 2! form two pairs of unobstructed flat, but angulsrlydiapnsul laces, which are separated by the two diamelrit'ully and oprmsitely located off-sets or shoulders 18 uml 23. subatuntially as illns-' trated. Upon its upper gurhwe the projection formed upon the side of the hearing-box 9 is provided with a.

series of ratehettectll or lmldi in; acmltions 26.

Loosely arranged upon the main shaft 11, and capabio of an oscillatory, an well no a slidable motion longi tudinnlly upon the shaft, is v. sleeve 27, said sleeve being provided upon its one face, next-to the helical wedge-shaped surfncwportions ofthe respective projections which extend from the sides of the pedestal 3 and the bearing-block or box 9, \uth a pair of helical wedg shaped surlaceportioiu 28 and 29, the some being sepatel y hunted and diametrically [tn- ta 30 and 31. the angular inclinations of the surface-[ muons 28 and 29 being much that the highest purist-32 and 33 and the lowest parts 34 and 35 of the roupoctivu portions will be arranged clearly shown in Fig. 9 of the drawings. When the sleeve 27 is in its operative position upon.

I the main shaft 11, then the helical wedgeshsped surhoe-portions e! um ole mm are in rotatable sliding enah the helical wedge-shaped pgemeut or conttwt wi ons of the upper part of lurface portionr oi the prujecti u pedestal 3 and the homing-block or box 9, either a shown in Fig. 2 oi the drawings, whcnthe parts are in theirnormsl'ini'tial positions; or, as represented in Fig. 3, when the various pnrla-aro in their operatively Extending from an outer margisl'uevc 27 is a socketed receivtowhich is secured by meme 0! fastening means, a post 88. At its upper end, thc said pout 381m an outwardly oxtending mo 39 upon which is pivoted In actuating handdaver 40. Pivuuliy mnnocled with the one end 01 said lever 40 is sduwnwurdly uxtcmlingrod 41 whi h extends through a pair of guides 42 and 43 upon the post 38, and has a forwardly extending finger 44 at its lower end ,which can ho ho mglu lnw it perative. holding or looking mtgugl'lnl'ltl- Willi any one of the ratchet teeth or aerrarinns 25. on vplum-n. By dvpreoring the finger-pieciend or hmulll p rli m tl u rod 41 is lilted against the uuiion of a suitable apring,

'nal edge-portion of said ing arm or projection 36 ensan tinlly an illustrated.

. which is let in or i usshoivn nu l for the nu .doacri'lisd. w

'54, and the usual series of us 45, whorl-lay the [inner-44 is raised above the ratch t; teeth 25 and a rotutive nmvoment oi the sleeve 27 uponlhe shalt il in a direction away from the open nlnrcunbe produced, at the some time rvsulliug in a. sliding motion in the direction of the arrow s e Fi 4, upon the main shaft. By relwsiug the prcmure from the low-r 40, rim linger 41 is again thrown intoig H mi Ur ked engugemenr. with anolhvr ratchetteeth 25, when-by the alcove 27 is held in its adjusted position. as will In clearly understood. By a similar p f fl' lnverdll, J-nd the pullingoi the post 38, and its parts tuwartl' the operator, the sleeve 2'; can rututcd in the opposite direction upon the. shaft, ll. thereby again returning the parts to their nor. mal initial pusitiuml, ind ientod' in 1" ig. 2 of the drawings. Upon the up [mail I. inch, 1.] u: said ul eeve 27 is formed wirh Ute thickened or enlarged p rtion 46, said enlarged portion being made with suitably disposed reciving sockets 47 norms which extend the pins 48, substan- Iicllm's or wheels 49, preferably of steel. sire rolntively arranged upon said pins 48 within the r'Qct-iving HOL'kUlH 47, each roller or wheel having a. portion amending from its socket, and being in rolling engagement with :1 steel or other suitable ring 50 3 otherwise secured to the end of a I! desired, the mid thickened or enbe provided. also, with other suitably disposed mcei vi ng sockets 52 in which may be placed suitable wearing-pins 53, the ends of which extend lrorn mid nuekotn 52 and are in sliding engagement, with the ring 50 of the hoisting drum. 51, substantially spaces to be presently more fully again he hoisting'jlnun 51. E l portion 46 may be preferable to use the wearing-pins 53 n a di i to the rullcra or wheels 48, it will be evi- 1 i g, h e of the pins 53 may be dispensed with, in uihicli case the rollers only are used- Thoihuiuting drum, just mentioned, is loosely and slitlsbly arranged upon the main um ll, the same being prgvidixl at one end with the usunlonnular flange holding depressions 55 with can be brought in holding engagement While it may guy-one oi'whicli the uaiml pivotm 56, seoFig. 1.11mi strirctionu of hoistin ordinarily used with the usual conengines. At ila opposite and, the drum' 51in made with mother element or annular flange 57, formed with a ehumbered portion 58 which is provided, with so inclined annular binding surface 59, as clom-l'y illuutmted in Fig-; 4 o the drawings. suitably secured in a. fixed ponit mom, f-wedgou orkeyu 00, or other suiiable fastening defied], is an element in the form f a apur gcar 61 for driving the said main shalt 11': Upon its inner face, the iiaid spur-gear in branded with a centrall disposed chain her or wckoted portion 62 through which um i momma. a coiled spring 03 beingarranged in said chnniiier, and and spring encircling the shaft and lm'ving itionu and extending into a depression 04 in the end of the lmintillg drum. The coils o! the spring are at all thnol nmre or loan compressed so as to tend to distend ind-l m g, prumuru in the direction of. the arrow z i mid Fig. 4. 'Upmi its inner face the spurgear is made witli'any suitable nunvln'r -radiolly disrmscd frictionblmflt holding or worrying memberstili, each member comprim'ng a palm! shin-Wu ion upon the main shalt 11, by

l or swinging holding-or retaining dog llub7extcudiugiromtheeirv cular wall (i8 oi the chamber 62 toward the outer peripheral or toothed surlam of the gear. The l'orward entLportions of each pair of said side walls are connected by a suitable partition (59 formed with a perl'mntion ul' hole 7t), and an upper or top-plate 71, forming a. reeeivine, pocket 72 in which isarrai'iged the friction block 71% provided with the inclined or chamiered holding surface 74 adapted to engage with the inclined surface 59 of the hoisting drum substantially in the manner to be lu-reinztl'ter more fully described.

Openings 75 are l'ormed between each pair of sidewalls (37 and the annular wall (38 and respective partitions (ill, as cl arly illnstrntw'l, these openings being for the purpose otreadily getting at an adjusting means connected with each friction block 73), that the said blocks can be moved in outward directions to have their inclined surfaces 74. more readily and properly bind with the inclined surf-nee 59 of the hoisting drum. The adjusting device which is connected with each block 73 consists, essentially, of a screw-threaded nut or metal dish 76 suitably secured upon the end of tho blopk-bv means of pins or screws 77, a screw-threaded rod or stem 78 being arranged in the serew-threaded nut or disk 76 of each block 73, and extending through the hole 70 and across the opening 75. The opposite andslightly reduced ends 79 of the rods or stems 78 are rotativcly arranged in a bearing 80 in the wall 68, each rod being provided with a wrench-receiving portion 81 and a pair of nuts 82 and 83, the purposes of which are evident; and, when slightly loosened, permit of the rod or stem 78 to be turn ed by'means of a span nei=wrench which is inserted in the opening 75 and upon the portion 81, so as to move the irictiolrblock in an outward direction for its proper adjustment.

The spur-gear (i1 is driven fronra pinion 84 upon a shaft 85, rotatably arranged in bearings 86 secured to. 'the pedestals or supports 2 and 3, the shaft being driven from the engine 5 in the usual manner, and as will be clearly seen from an inspection of Fig. l of the drawings.

The operations of the mechanisms and parts just described will be clearly understood fromvan inspection of the drawings, and more especially from Fig. 4, and need not therefore be further set forth.

In Fig. 14 of the drawings, I have illustrated the application of my present invention as a power-transmission mechanism for automobiles and the various power driven machines. In this construction, in lieu of the hoisting drum 51, I use a gear 87, which is made with the cone-shaped interior or chamber 88, as indicatedin clotted outline in said Fig. 14'. The arrangements and constructions of the spur-gear and of the shifting device are similar to those shown in Figs. 1 to 13 inclusive, and as described in the foregoing specification, and need not therefore, be' further set forth. The power from the gear 87 is transmitted to a pin'iou89 arranged upon a shaft 89, as shown.

In Fig. 15 is shown a pair of hangers 90 provided with bearings 91 which carry a main shaft; 92, said shaft being provided with a. friction drum 93 similar in construction to the spur-gear previously described, with which can be brought in frictional engagement, a conechambered drum or pulley-wheel94 which is shifted brek" and forth upon the main shaft by nieans of the shifting device described in the foregoing. In all other respects the arrangements oil-he parts are similar to those already set forth in connection with the construction shown in said Figs. 1 to l3 inclusive.

1 claim:

1. ln :1 power-transmissiori mechanism, the combination with a driving; shaft, o1. a friction-clutch comprising a main body-portion for use us a driving element, said body being provided with a centrally disposed hole for ill-rungin;- aid body upon said shulit, a laterally extending and centrally disposed annular wall on one side of said bodyportion,,suid wall forminga receivirn, chamber through which the shaft extends, side-walls arranged in pairs and extending radially from said annular wall. a secluded t'rieliondlloek holding; member carried by each pair of side walls. each member being closed at. its bottom and surrounding side, but open all: the end opposite said bottom, the edge-portions which surround snld open end being tapered, as set forth, and a frir-tion-blrmk adjustably arranged in each holding: member, said blocks having inclined engaging surfaces"projecting beyond the tapered open end of each holdiing member, and n cone'shuped driven element; arranged upon said shaft. \vlth which the engn inc" surfaces of said blocks are adapted to be brought. ln-f| etionul engagement, all combined with a menus of adjustment connected with each frietion blocli and urranged in the open space between each pair of radially extending side-walls, substantially as and for the purposes set forth.

2. ln apower-lransmission mechanism, the eombiinition with a driving shaft, of a friction-clutch comprising a main body-portion for use as a driving element, said body being provided with a centrally disposed hole for arranging said body upon said shaft, :1 laterally extending and centrally disposed annular wall on one side of: said bodyportion, said wall forming; a receiving vchamber through which the shaft extends, sidewalls arranged in pairs and extending radially from said annular wall, a St|Cli('1.t.(l

friction-block holding member carried by each pair of side: walls, each member beiin, elosedat its bottom and surrounding side, but open at the end opposite said bottom, the edge-portions which surround said open end being tapered, as set forth, and a frietioirbloek adjnstah'ly arranged in each holding member. said blocks having illclln'ed engaging surfaces projecting beyond the open end-of each holding member, and a cone shaped driven element arranged upon said shaft with which the engaging surit'nces'of said blocks are adapted, to'be brought: in frictional engagement, all combined with a means 01.

adjustment connected with each friction-block and ill" ranged in the open space between each pair of'radlally extending side-walls, consisting of screw-tbreaded adjustlug rods, eachrod having an end-portion rotatively connected with the annular wall of said main body-portion, and havingits opposite end-portion extending through the bottom of a holding member and screwed into a block, a wrench-receiving portion upon each rod, and loelcnuts upon the screw-threaded portion of each rod, substantially as and for the purposes set forth. I

3. 1n :1 power-transmission mechanism, the combination with a driving shaft, of a friction-clutch comprising a main body-portion for use as'a driving element, said body being provided with 11 centrally disposed hole for arming ing said body upon said shaft, a laterally extending and centrally disposed annular wall on one side of said bodyportion, said wall forming a receiving chamber through which'the shaft; extends, sidewalls arranged in pairs and extending radially from said annular wall, a socketed friction-block holding member carried by each pair of side walls, each member being. closed at its bottom and surrounding side, but open at the end Opposite said bottom, the edge-portions whlch surround said open end being tapered, as set forth, and a friction-block adjustably ar; ranged in each holding member, said blocks having inclined engagingsnrtnees projecting beyond the tapered open end of each holding; member, and a cone-shaped driven element arranged upon said shaft with which the engaging surfaces of said blocks are adapted to be brought in frictional.engagement, all combined with ameans of adjustment connected with each friction-block and arranged in the open space between each pair of radially extending side-walls, consisting of screw-threaded adjust- 1m, rods, each rod having an endportion rotatively connected with the annular wall of said main body-portion, and having its opposite end-portion extending through the hot-torn of aholding member a screw-threaded metal disk secured to each block into which the screw-threaded endportion of the adjusting rod is screwed, a wrench-receiving, portion upon each rod, and lock-nuts upon the screwthrcadcd portion of each rod, substantially as and for the purposes set forth.

4. Ina power-transmission mechanism, a main shaft, hearing members in which said shaft is mounted, each hearing member comprising a standard. formed with a semirylindrical bearing portion, a hearing-block secured upon each bearing-portion of a standard, one of said standm'ds being provided upon the side of its bearing p rtion with a helical wedge-shaped surface-portion formedkwith radially extending oflf-sets, and the bearing block is sccured upon said standard being provided upo side with a corresponding helical wedge-shaped so] portion formed with radially extending; elf-sets, a s ,3 arranged upon said shaft, said sleeve being provided ugllon its side with a pair of helical wedge-shaped engagingsih faces, all combined with a friction clutch comprisin driving element fixed upon said shaft, and u driven i ihent loosely mounted upon said shaft, said driven element being driven from said sleeve, substantially as and forjfit hg purposes set forth.

5. In a 'power transmlssion mechanism, a main shaft,

' bearingmembers inwhich said shaft is mounted, each sleeve arranged-upon said shaft, said sleeve being provided upon its side with a pair of helical wedge-shaped engaging surfaces, all.comblued with a. friction clutch comprising a driving element fixed upon said shaft, a driven element loosely mounted upon said shaft, and weering pins extending from said sleeve for actuating said driven element, substantially as and for the purposes set forth.

6.1m a powertmnsmisslon mechanism, a main shaft, hearing members in which said shaft is mounted, each bearing-member comprising a standard formed with a semi-cylindrical bearing-portion, a bearing-block secured upon each bearing-portion of a standard, one of said standards being provided upon the side of its bearing por tion with a helical wedge-shaped surface-portion formed with radially extending off-sets, and the beuring block which is secured upon said standard being provided upon its side with a corresponding helical wedgeshaped surface-portion formed with radially extending offsets, a sleeve arranged upon said shaft, said sleeve being provided upon its side with a pair of helical wedgeshaped engaging surfaces, all combined with a friction-clutch comprising :1 driving element fixed upon said shaft, said sleeve buing'provided with receiving-sockets, a roller in each socket, a driven element loosely mounted upon said shaft and a ring connected with said driven element with which said rollers are in rolling engagement, substantiali" s and for the purposes set forth.

. in a power-transmission mechanism, a main shaft, "tiling members in which said shaft is mounted, each aring member comprising a standerdformedwith a semi-cylindrical beariug-portion, a bearing-block secured upon each bearing-portion of a standard, one of said standards being provided upon the side of its bearing portion with a helical wedge-shaped surface-portion formed with radially extending oft-sets, and the bearing lock which is secured upon said standard being provided upon its side with a corresponding helical wedge-shaped surface-portion formed with radially extending oliE-sets, a sleeve arranged upon said shaft, said sleeve being pro vided upon its side with apair of helical wedge-shaped engaging surfaces, all combined with a friction clutch comprising a driving element fixed upon said shaft, said sleeve being provided with receiving-sockets, a roller'in each socket, a. driven element loosely mounted upon said shaft and a ring connected with said driven element with which said rollers are in rolling engagement, and wearing pins extending from said sleeve for actuating the driven element, substantially as 'and for the purposes set forth.

In testimony, that I claim the invention set forth above I'havehereunto set my hand this 21st day of .Tuly, 1900.

WILLIAM P. BRACHMANN.

Witnesses:

F. H. W. ERAENTZEL.

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