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Publication numberUS1266262 A
Publication typeGrant
Publication dateMay 14, 1918
Filing dateSep 26, 1912
Priority dateSep 26, 1912
Publication numberUS 1266262 A, US 1266262A, US-A-1266262, US1266262 A, US1266262A
InventorsFrederic V Hetzel
Original AssigneeLink Belt Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Elevator.
US 1266262 A
Abstract  available in
Images(6)
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Claims  available in
Description  (OCR text may contain errors)

F. V. HETZEL.

ELEVATOR.

- APPHCATION FILED SEPT- 26,1912, 1,266,262. Patented May14,1918.

s SHEETS-SHEET 1.

F. v. HETZEL, ELEVATOR,

I APPLICATION FILED SEPT. 26, I912. 1,266,262. Patented May14,1918.

. 6 SHEETSSHEET 2.

1 I I m Z6 2 V by M izfi 5M 71/ F. V. HETZEL.

ELEVATOR.

APPLICATHJN FILED SEPT- 26, 1912.

1,266,262. Patented May14,19 18.

6 SHEETSSHEET 3 F. V. H'ETZEL.

ELEVATOR.

APPLICATION FILED S.EPT. 26, 1191 2.

1 ,266,262. Patented May14, 1918.

6 SHEETS-SHEET 4.

r. v. HETZEL.

Patented May 14, 1918.

6 SHEfTS-SHEEI 5.

F- V. HETZEL.

. ELEVATOR.

I APPLICATION FILED SEPT- 26, IBIZ- 1,266,262. Patented May14,1918.

6 SHEETS-SHEET 6- UNITED @TATEd PATENT @FFIQE. I

FREDERIC V. HETZEL, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LINK BELT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ELEVATOR.

Specification of Letters Patent.

Patented May 14, 1918.

Application filed September 26, 1912. Serial No. 722,510.

To all whom it may concern:

Be it known that I, Fnnonnro V. Hn'rzEL, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Elevators, of which will be hereinafter described, I attain in the,

following manner, reference being had to the accompanying drawings, in whichz- Figure 1, is a sectional elevation showing my improved elevator in connection with a building Fig. 2, is a View looking in the direction of the arrow at the side of Fig. 1;

Fig. 3, is a sectional view taken on the line aa, Fig. 1;.

Fig. at, is a sectional view taken on the line bb, Fig. 1 i

Fig. 5, is an enlarged view illustrating mechanism at a floor and at the upper run of the elevator, showing a tripping cam set to tilt the carriers which I employ;

Fig. 6, is a fragmentary view taken on the line c0, Fig. 3, showing a carrier being tilted on the upper run of the elevator and also the position occupied by a carrier on the downward run of the elevator.

Fig. 7, is an enlarged view at a floor showing the position in full lines that the tripping canis normally occupy and also show-' ing a position, in dot-and-dash lines that they occupy when set to tilt a carrier;

Fig. 8, is a detail view showing a detent pawlconstruction which I employ;

Fig. 9, is an end view ofFig. 8;

Fig. 10, is a face view of a selective dial construction which I employ;

Fig. 11, is a sectional view taken on the line M, Fig. 10;

Fig. 12, is a View of a carrier arm having a tripping finger thereon and in its normal position during an upward run;

Fig. 13, is a View similar to Fig. 12, but in which the finger has been overbalanced to discharge the carrier;

Fig. 14, is a View of a carrier arm' inverted and showing the position of the tripping fingers during its downward run;

Fig. 15, is a view showing the position of a carrier in passing from the upward run to the downward run; and

Fig. 16, is a view showing the position of a carrier in passing from the downward run to the upward run; and Fig. 17 is a view partly in section of a tripping lever which I employ.

Referring to the drawings, 1 is the supporting structure made of steel or other material and forming an elevator well 2. J ournaled at the top and the bottom of the supporting structure are two shafts 3 and a respectively. A sprocket wheel 5 having an endless chain 6 passing thereover is keyed adjacent one end of the shaft 3, and the said chain 6 passes around a sprocket wheel 7 keyed adjacent one end of the shaft 4. In like manner a sprocket 5 having an endless chain 6 is keyed adjacent the opposite end of the shaft 3 and the chain 6 passes around asprocket 7 the latter being keyed adjacent the opposite end of the shaft 4. The shaft 3 is driven, in the present instance, by means of a motor 8 through the medium of a chain of gearing, comprising a chain belt 9, a sprocket 10, and gears 11, 12, 13, and ll.

A shaft 13 (see Figs. 8 and 9) which forms a support for the gear 13 has mounted thereon two automatic detent pawls 15, each having an adjustable counterbalance weight 16 adjacent one end and a stop 16 As the sprocket 5 and 5 are of like diameter and have the same number of teeth, both chains 6 and 6 will move in unison and at the same speed. Each of a series of rods 17 (see Figs. 3, 4 and 7) has its ends 17 and 17 journaled within corresponding links in that the reels 1? always occupy e. snestaetiai y sci-mental position but will be iree 1'0 er reciz. A113 iiuiimeiof these reels 5 l7 be earned by the chains end (i Giiideweys and 26- si'e termed by angle SUEZQS elsimels 28 and 2 8 running the Height ei lie elevator Welland, adjacent E5 the ends 1'? oi the rods 17, file eel te each red I ed'eceni; theencls l? is a roeking' er i 23 having radially iiesesee 3 arms 3 and 3L The arms 36 enel 3' the summit enti-ifrietien rollers 32 entl 33; the let guideiv 2; While in, the seeming rim, valleys F87 igthe mile 28 and. 28 and gto keep the carriers steady and. lev {luring tlieii'. upward. mevemeiitl angle sttips 2'?" curved at the tep and bet tom 05: the elevate": Well substeiiti tlly 591% centricte the sprcekets te I rm e ceittinua tieii ei the geiclewey 25 fee the rollers the ermsEL s The arms 31 are the silly eems eentrellecl en the return rim t 6 and 6 wave Witlin guicl-= 5 end 8? femiieal by angle strips 1 the said giiideiveye J'lie betjom te the tsp of tie speefivelyc "Hie pivot pins for the tripping iiiigers Z-Hs 0i such a length as to pass threegh tFe CFJ= llfii" sens s0 that the l lit-Weight everlseL ncls the fingers will be ezie side al th F l the Weight eiicls cppcsite sicle of the carrier m nes eles ly Y Y? and 45.; E5 21115 23 w w A Abuse- 3114564} iirl acts" as e e respeeive tiip'eieg in a manner mere fully described being eclepteel t0 iJTZiVGl in tee tiKecl therefii lie-ere "EL 6 D E, anal F; files the eeiistme= tic-ii GKE-ill shewn is such tllfittlle shaft mini spree-set Wheels Y and 7 are lielew the lee illg flee-r; the upper run 0f the adjacent the enels of the fie'ei's, oil the supporting structure n i tee ficer levels with tloue'ez= -e iieersu i and. F ere reel: shafts ml 521i, liming arms 53 5% 55- ee en their respective outer ends 21ml tri'psing levers 58 59, 60 and 61 Te keyed therete aeent tll'eii 111113? of the said tripping levees haveelence Weights el2(see -5 edjuste-bly meuntecl thereon one estment being bolts efi whicli slets @2 in the said tripping These tripping levers are so ei enge e their respectiveslieits as 530 iegister be engegecl ley'the heavy emls e% 1e speetive tripping fingers :3 4:4, e5 amt Hilde? eeleelitieiis which will be heremeitey a a1 a as clearly shewn in Fig 1. Guide e-iellel the lower swell face of each cems siicl se placed as to aziti-frictie-n rollers 32 to telze eth wide? cetein eenclitions s 63 G i- 65 ancl 66; in such a f with the inner face of the elienr respective guide cam the eing shown in alettecl lines former pcsitien being shewn M. 1g 50 L'nlzs i i 3 73, 74- and respectively connect the arms 53 5e eiicl W tll respective switch latches 68 69 PM, w I-"' teent the main loecliiig Line? A, 01; e2 ceii v'enieiit position, is a (lied 76 it?) liztvi ig numbers Of' letters l indicating the fleets G D, E and iclle 7? keyei t0 e shaft 78 cencentric V geuieeled Within tliediel '26 end mm 83 the imliceting; meek fee the respective C, D set-e li'et wheel 84 is lzeyecl 50- the F9 ii an endless clieiii belt 85 (see Fig;

seets the sptgekes to another spgo lte en a gage shaft 8? which is is itthe suppeiting structure bet-we ii i a loading fleet" jig-.116; the fleet we a snbstentielly lierizentel i extend teWe-rci the upper e; elie y ebeve respective liners i U, l

they may be Lao-val either 'iiite u D'wiecl i) are lieyeel to l T q sea-it 8'? so met each may lie of the tripping fingers on the carriers duringtheir upward movement; and these gage armsare so positioned and constructed that it is possible to turn all of the arms so that no one of them will extend into the path of the tripping fingers during the upward run of the carriers, such a position as occurs when the pin 7 7 is in engagement with the aperture 83 for discharging at the topfloor.

Stationary loading fingers 88 extend from the level of the bottom or main loading floor, and also from the supporting structure at the same floor level in a manner as to form a partial closure or grate flooring for the portion of the elevator well occupied,

by the upper run of the carriers, however, there is sufficient space left between the loading fingers to permit the passage of the carrier arms, so that if a bale or other object to be lifted is slid or placed on the loading fingers the same will be raised therefrom by the carriers, as the arms of the latter pass through the spaces between the loading fingers.

As it is often desirable to raise material from one upper floor to another upper floor, I provide a'series of movable auxiliary loading floors 89 adjacent each floor with the exception of the top floor, and as each floor 89 acts to form a temporary loading flooring or platform for each floor and as they are of similar construction, I will only describe the construction and operation of one. Mounted adjacent the flood level (see Fi s. 5, 6 and 7) is a rock shaft 90 having keye thereon a series of loading fingers 91; a hand lever 92; and an arm 93; said fingers 91 being spaced apart similar to the stationary fingers 88. A second rock shaft 94 is pivotally mounted on the supporting structure and forms a support for a second series of loading fingers 95 keyed thereon and which are in alinement with respective fin ers 91. A second arm 96 is keyed to the roc shaft 94: and a link 97 connects the arm 93 with the arm 96, as clearly shown in Figs. 5, 6 and 7. When any of the upper floors are not being used as a loading floor, the hand lever will occupy a position substantially parallel with the floor and the weighted arms 98 tend to keep the loading fingers in a vertical position so as not to interfere with any material which is loaded at a lower floor. However. when it is desired to use any one of the upper floors as a loading floor, the respective hand lever on the floor is raised into a substantially vertical position which causes both series of loading fingers'91 and 95 to be lowered into the position shown in full lines Fig. 4, and dot-anddash lines in Fig. 7.

The angle bar 28 has openings 99 cut in its lengths adjacent the floors B, C, D, E and F and the ends 100 and 101 are deflected so as to permit a deflecting movement of the dumping or tilting arms 30 and 31 on each rod 17; the ends 101 also serving as cams to return the carriers to a level position.

Guard strips 102, 103, 101 and 105 extend from-points below the main loading floor level to the top of the well, and serve as back stops and guards to prevent any of the material from being rolled over the rear ends of the carriers while being loaded or during the upward path of the material.

An endless cha1n conveyer 106 may be located at the upper floor and may be extended in length to any part of the building'or other building or buildings, and is driven from a sprocket wheel 107 on a clutch collar 108, loosely mounted on the shaft 13 in the following manner :A sprocket 109 is keyed on a counter-shaft 110; the latter having a pinion 111 which meshes with a gear 112 on a driving sprocket 113; the latter meshing with the chain of the conveyor. In the present instance, I have shown the conveyer passing over anti-friction rollers 11% and 115, but it will be understood thatthe same may be of any construction. The clutch jaw 116, which is slidably keyedon a shaft 13 may be moved out of engagement with the clutch collar 108 by means of a hand lever 117 pivotally supported at 118 and connected to the said jaw 116 so that the conveyer may be actuated or stopped by movement of the lever 117.

Assuming that material is to be conveyed from the main loading floor A to one of the upper floors, for example, the floor B. the operation is as follows :T he motor is started by throwing in a switch of any well known form, not shown, and the chains 6 and 6 are driven in the direction of the arrow shown in Fig. 1. The handle 77 is then turned until'the spring-pressed pin 77" comes opposite the aperture 79, the handle 77 is then released and the spring-pressed pin is forced within the said aperture 79, thereby locking the gage shaft 87. The construction is such that this movement of the handle 77 moves the gage arm B into a horizontal position and into the path of the ends 43 of the tripping fingers 43 on the carrier arms 20, so that as each carrier passes the gage arms B, the latter will engage and overbalance the tripping finger on each carrier arm 20. This over-balancing of the tripping fingers 43 causes the heavy ends 43" to pro3ect a sufficient distance beyond the inner ends of the carrier arms 20 and abut the pins '47 so that when the said ends 43 reach a point opposite the tripping leverv 58 they will raise the said tripping lever (see and by rocking the shaft 48 will cause the switch latch 88 to be moved into contact with the inner face of the angle strip :28, then each anti-friction roller 32, while each respective tripping finger 4 3 is engaging the tripping lever 58, will be deflected by the switch latch 68 into the path pro 1o scribed by the swell portion of the cam 83 the guide cam 52, as clearly shown in Figs and 6; thereby causing the carriers to tilt and discharge the packages on the floor B, After the tripping lever 58 is released by each tripping finger 43, the weight l2 will cause the said tripping lever 58 to clrop and thereby move the switch latch 68 into engagement with the cam guide where it will remain until the tripping lever 58 is again actuated by a tripping finger in the manner just described, Therefore, every carrier will clischarge its burden at the floor B while the gage arm B is set to overloalance the tripping fingers l3. After each carrier has discharged its burden its iriction roller engages the encl 101 the rail 28* and thereby causes the carrier to resume its original position, The weioht l2 on the tripping levers 58, 59, 6G anc ill normally keeps the saicl levers clown thereby hold their respective latches in engagement with the respective coin guides so that it will be nnclerstoocl that ii any one of the tripping levers is not aliectecl by a tripping finger, each respective switch latch will cut the passage to its respective cani swell and the anti-friction rollers will continue on their direct upward movement without being clefiectecl or without tilting the carriers as they pass; such positicn being shown in full lines in Fig, 7.

like manner the bales may be fillsprin -pressed pin 77" the inclicarecl for that respective floor,

'lhe cam 67, which is ad acent the top floor is not provided with switch larch but is so shaped o cause all the ant-r e shaft E37,

E 1 o The; zero, 1i

there are no arms 3 4';

the overbalancing or a ilngers, so that "5h 32 and will not as; I a: y 7 of the cams until they pass over '5" e i so 6%, lh carriers l e latter cam will canse t1 e to be turned on their pivots and thus lis- "pg the loacl the top Leora T o7 acts also as a ea device the reason that shonlcl any r the arm 31 traveling in the gnicleway 25, ancl all of the tripping lingers swing clear of the abutment pins, "When each carrier passes from the return run to the carrying inn at the bottom the elevator, the rollers on the arms and 31 enter the gnirleway 26 and all the abutment pins contact with the lightweight ends of their tripping fingers anrl act during the upward travel of the carriers to hold the lingers in the position shown in 12 unless they are tripped into the position shown in Fig 13 by coming in contact with a arnn Thns when each carrier starts its npwarcl run, every light weight encl of each tripping finger is projected into a position for contacting with a set gage arm. If any one of the gagearms is set as hereinbefore clesoribecl, the lightweght encl of respective tripping fingers will strilre against the saicl gage arms anrl as the carrier continues to move upward, the heavy and or the tripping= finger will be "forced over the center and will "fall onto its respective pin l"? and in position to actinate its tripping lever which will operate a latch which turn will tilt the carrier. it is rlesirerl to convey packages from one upper floor to another ripper floor, for

I example the floor U to the floor hi the hand lever on the floor O is raised into the.

position shown rlot-anrl clash lines, Fig anal full lines in Fig. l ancl thereby lowers the loaf g" lingers 91 ancl '95 to form a loading noor, as above rlescribecl, The bales then snc essively moved onto the loading floor and the handle T7 is mcvecl so to have the press-ecl pin engage the aperture 8 1: the previously clesoribecl, aclrages wi-l now be discharged with a lo into positi may no tahenfroni (.lEQGSllJECl on any of he above:

41737 to mere 1 clined trucks or chutes 119, which may be of such a height as to register with the carriers while they are discharging.

If it is desired to carry material from any one of the lower floors of the building having the elevator therein to another building, the material is discharged at the top floor F on to the conveyer 106 which may be thrown into operation by means of the hand lever 117. The material may then be carried and deposited at the will of the opera tor into any other building into which the conveyer extends.

In the accompanying drawings, 1 have shown the elevator in connection with a six floor building, but it will be understood that the same can be used with a building having any number of floors of equal or unequal distances apart Without changing the principle of my invention.

Any form of housing may be employed for the elevator supporting structure and the elevator can be built in any portion of a building, or independently of a building, if desired. However, I referably construct my elevator at the outside of a building and house the same in any well known housing, such for example as one made of corrugated metallic plates. By this arrangement I use none of the storage space of the building proper. Also, I preferably construct the supporting structure so as to extend beyond the upper level of the building proper, so that the upper sprocket wheels 5 and 5 and their driving means are located above the top floor of the building In like manner,

the lower sprocket Wheels 7 and 7 may be placed below the surface of the main loading floor by having a pit formation within which the supporting structure rests.

My invention is capable of handling packages or material of very delicate nature, as the loading and discharging means are of such construction that they will not in any way injure goods carried or discharged thereby. An elevator constructed in accordance with my invention is extremely easy of operation-and control; the tripping fingers, gage arms, and trippm levers being controlled by a handle 77 which is moved to a position on the dial indicating a particular fioor at which it is desired to discharge the material being elevated.

While I have shown the driving mechanism located adjacent the top fioor,the same may be controlled from a switch located ad jacent any one of the other floors, or the driving mechanism may be located at a dif ferent position within the elevator well or adjacent the handle 77, if so desired.

Also, in the drawings the tripping fingers are shown pivoted directly on the carriers and only one finger on an arm, but it will be understood that the tripping fingers may be carried by any member moving together with the carriers.

In the claims, I have used the term common point and by this is meant the handle 77 on the dial 76 or equivalent common member.

I claim:

1. The combination in an elevator, of a carrier; a plurality of two armed levers, one arm of each lever being of greater weight than the other; means for overbalancing one of said levers controlled from a common point; means for tilting the carrier; and means in the path of the overbalanced lever to shift the tilting means and to discharge the load.

2. The combination in anelevator, of a series of carriers; means for moving the carriers; tripping fingers mounted on each carrier; tripping levers placed at definite positions along the path of movement of the carriers; cams actuated by said tripping levers to cause the carriers to tilt and discharge their loads; means for actuating any of the tripping fingers to cause them to project into positions to operate the tripping levers as they pass the same.

3. The combination in an elevator, of a carrier; means for moving the carrier; a plurality of independently movable weighted selective levers connected to the carrier; means for moving one of said levers into operative position; and means, actuated by a projected lever,-to cause the carrier to discharge its load at a predetermined point, said levers being so balanced that they will be automatically reset in the inoperative position as the carrier is inverted at the upper end of the elevator.

4. The combination in an elevator, of a carrier; means for moving the carrier; a-

plurality of selective levers pivotally mounted on the carrier, each having a light-weight end and a heavy end; abutment members on the carrier, said light-weight ends of the levers being normally held against their respective abutment members by the weight of their heavy ends; means operable during" the movement of the carrier to trip the selective levers to cause their heavy ends to rest against the respective abutments to effect the discharge of the carrier; and means for overturning the carrier to cause said heavy ends to reset the levers in their normal positions.

5. The combination in an elevator, of a series of carriers; a plurality of selective levers carried by each carrier, each of said selective levers having a light-weight end and a heavy end; means for moving the carriers in an elevating and a return run; means for inverting the carriers as they pass from the elevating run to the return run and for reverting the carriers as they pass from the return run to the elevating run;

Lam

:ahntments on each cerrier, said heavy entls of the levers, during the npvvartl inn of the carriers, tending to normally hold the lightweight encls egainst the ahutnients; means operable during the movement of the carriers to trip the selective levers out of their normal position and to cause their heavy ends to rest egainst the ehntrnents; and :Ineans, ectnatetl by said encl, for effecting the discharge of the carriers at predeterniinecl positions, the said inverting and re verting movements of te carr ers causing the levers to reset in their normal position.

6, The combination in an elevator, of series of landings; e carrier; roeens for moving the carrier past the landings; insane lecateli at each lending for engaging xencl tilting the carrier; selectors moving in conjnncticn'vvith the carrier; means located in position to he actueterl by the pro- 'rneens for tilting the carrier so that as the cerrier passes the tripping means, entl said means is actuated by the projected selector,

cause the carrier to discharge its loacl.

7, The combination in an elevator, of series of landings; e carrier; clrivine means :tor moving the carrier past the lancings; e series of selectorson carrier mannally operated. shaft, means on said shaft 'lor engaging and shifting any one of the selectors on e, cerrier so as to move it into operative position; means for locking the shaft; e device, at each lancling, located in the pet of e projected selector encl so arranged with respect to the carrier that "when a selector is projectetl e device at a given lending will he actnatecl; means, locatetl at landing, for tilting the carrier; anal a connection hetvveen the saitl clevice and its tilting mechamsrn so that, when a selector is prciectetl, it tilt the carrier it given landing,

8 The combination of e series carriers; means for moving the carriers; selective members on the carriers; a rotatable mounted independently of the carriers; arms on the short; means for moving the so as to hiring one of the arms in the the selective members to actuate san anti means, operable by the selectors,

- discharging the loads oi the carriers.

clevice, the cerrier will he tilted to discharge entl discharge its lead.

ll, The combination in an elevator, of a series of carriers; insane for moving the carriers; gilfitilS for guiding the carriers; e se rice or tripping levers; cares; means connecting the tripping levers With respective cares; a series of gage arms; a series of tripping fingers niountecl on each carrier, each of said tripping fingers being arranged to actuate e certain tripping lever; end means for moving any one of the gage arms into the path of e tripping finger to project it to actuate its care and thereby discharge the carriers as they pass by said actuated cam.

12, The coinhinetionin an elevator, of a cries of carriers; means for moving the erriers; means for guiding the carriers; a cries of tripping cams; a tripping lever for L13 iv) with its tripping lever; tripping fingers cerrietl by the carriers, each of seicl tripping lingers being errengecl to actuate a certain tripping lever; a series of gage members, each of said gage members, being movable into the path or and to actuate a specific tripping linger on each carrier; and: rneens "for moving any, one of the gage members into the path of a tripping finger to project the same so as to come in contact, during course oi? its travel, with a tripping lever to ectnete the care which is connecteel to the letter to discharge the carriers,

13, The combination in an elevator, of a cries of carriers; nieens for moving the coriers; a carrier discharging cein located at ach discharge point; e trippin lever for ech cam; means connectin? each cam "with ts tripping lever; plurality of tripping ngers cerriecl by each of said cerriers, each seitl tripping fingers arranged to engage a -rticnler tripping lever; a series of gage i: ernhers, eech gage ineinher acting upon a eciiic finger on each carrier; meens for oving an one of the gage members into the of its tripping finger on a cerrier so saitl finger vvill actuate a specific earn a h its tripping lever to rlischerge the carrier, i v 7 i l The comhhietion in an elevator, of e eerriersgnieans for moving the cerriers; selective insane movahle in conjuncn with carriers; e rotatahly nicnntecl it; arms on seirl she-it for actuating elective ineens; i leans for rotating; the 3 e loch therefor; end means, actnaterl ech care; means connecting each of the comeill] by the selective means, for discharging-the carrier at a predetermined point. 1 i

15. The combination in an elevator, of a. series of landingsya carrying run and a re turn run extending past'the landings; a cam at each landing; a series of connected carriers arranged to travel in the carrying and return runs; an arm on each carrier; means for directing the arms into the path of the cams to tilt the carriers; a series of selectors on each carrier; means for projecting any ,one of the selectors into operative pos tion; 4 the projected seand mechanism actuated by armsof the carrier so that t means for the e carrier will tilt at a given landing and discharge its load, theselector being returned to its normal position as the carrier travels on the return run.

In testimony whereof, I name to this specification, in the presence of two subscribin witnesses. v FlfiEDERIG V.- HETZEL.

Witnesses:

lectors'to operate the directin have signed my

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2646177 *Mar 20, 1947Jul 21, 1953NussbaumDevice for storing and conveying containers
US4072227 *Jan 28, 1976Feb 7, 1978Ntn Toyo Bearing Co. Ltd.Pin type transfer apparatus for apertured-workpieces
Classifications
U.S. Classification198/352
Cooperative ClassificationB65G47/487