US1095255A - Conveyer. - Google Patents

Conveyer. Download PDF

Info

Publication number
US1095255A
US1095255A US70019212A US1912700192A US1095255A US 1095255 A US1095255 A US 1095255A US 70019212 A US70019212 A US 70019212A US 1912700192 A US1912700192 A US 1912700192A US 1095255 A US1095255 A US 1095255A
Authority
US
United States
Prior art keywords
conveyer
apron
articles
boxes
crates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US70019212A
Inventor
Harry E Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Wire & Iron Works
Original Assignee
Dow Wire & Iron Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Wire & Iron Works filed Critical Dow Wire & Iron Works
Priority to US70019212A priority Critical patent/US1095255A/en
Application granted granted Critical
Publication of US1095255A publication Critical patent/US1095255A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/2045Mechanical means for guiding or retaining the load on the load-carrying surface
    • B65G21/2063Mechanical means for guiding or retaining the load on the load-carrying surface comprising elements not movable in the direction of load-transport
    • B65G21/2072Laterial guidance means
    • B65G21/2081Laterial guidance means for bulk material, e.g. skirts

Definitions

  • This invention relates to thec ass of convey-l ers but more particularly to a conveyer which can be employed for both raising and'lowering articles, packages, boxes, crates and the like, and the invention has for its object to pro vide a combined raising and lowering conveyer which is so constructed and arranged that articles, packages, boxes, crates and the like can be ⁇ raised and deposited on any desired floor inthe building and in which articles, packages, boxes, crates and the like can be conveyed from any floor' in the build ing in a downward direction.
  • a further object of the invention is to provide the conveyer with certain fire proof doors arranged at each floor or story in the building in such manner that they will automatically close in the event of fire.
  • a further object of the invention is to provide a conveyer which is so constructed, and arranged as to receive the articles, pack.I ages, boxes, crates and the 11ke and convey,-
  • a girther object of the invention is to provide a, conveyer of the character described which is extremely simple in its construction, cheap and easy to manufact-ure,
  • the invention consists in the construction of the conveyer and in its component parts; and the invention consists in the novel arrangement for raising and handling the articles, packages, boxes, crates and the like at the lower end of the conveyer in .such manner that the same cannot be injured or broken by the conveyer chain'and ilights.
  • the invention further consists in the novel construction for depositing articles, packages, boxes, crates and the like at any desired licor throughout the length of the conveyer.
  • the invention further consists in the novel construction and arrangement of the safety fire doors.
  • the invention further consists in certain other novel details of construction and in .transverse .sectional view of the frame and door of the conveyer taken on line6-6 lof Fig. l, and Fi tudinal vertica sectional view showing a modified construction of the arrangement of intermediate doors o r openings for delivering an article, ackage, box, crate and the like at interm iate openings through out the length of the conveyer.
  • a conveying apron 23 mounted on rollers 24 is disposed in line with the ioor of the conveyer, said apron 23 being driven by means of a pinion 25 (Fig. 1) mounted 0n the shaft of the forward apron roller 24, said pinion 25 meshing with the partially toothed gear wheel 26 lmounted on the shaft 27 of the lower sprocket wheels 9 for a purpose. which will be presently described.
  • a short conveyer 28 composed f the rollers 29 by which the 'articles, packages, boxes, crates and the like are conveyed to the apron 23.
  • Fig. 2 it will be seen that I interpose between the end of the short conveyer 28 and the outer end of the conveyer apron 23 two stops 30 which stops are arranged to prevent the passage ofl an article,
  • Figs. 1 and 3 it will be seen that the floor 5 is provided with an opening 32 and communicates with'an inclinedchute 33 in such manner that an article, package, box, crate and the like bein veyed by the conveyer chains will be deposited on the said chute 33 and is led by gravity onto the lower conveyer 34.
  • these chutes are arranged in the conveyer as there -arc stories in the building, providing of course that the conveyer extends the entire height of the building, and when it is desired to convey articles, packages, boxes, crates and the like either up or down, without having them deposited at intermediate points, a removable floor-section 35 shown in dotted lines in Fig. 3 and in full lines in Fig.
  • l is arranged at the openings 32 in order to provide a continuous ioor the entire length of thev conveyer, and it is obvious that any one of the said removable Hoor-sections 24 can be removed in order to deposit articles, packages, boxes, crates and the like at any desired point intermediate the ends ofthe conveyer.
  • I can pivot the section 36 at the point 37 and so hold the section 36 by a weight 38 so as to maintain the said section 36 normally inproper position, and I can arrange a slide 39 to pass under the end 40 of the hinged section 36 in order to maintain the section 36 in its normal position'during the passage of the articles, packages, boxes, crates and the like either upwardly or downwardly of the conveyer, and when it is desired to deposit an article, package, box, crate and the like at ay intermediate' point along the length of the conveyer it is simply necessary to move the slide 39 into position shown in full lines in Fig. 7, and as the article, package, box,
  • fuse 47 which fuse 47is of such character that the same will part when heated and allow the doors 45 to drop into a horizontal position to completely close the openings in the doors through which the conveyer passes, thus forming eifectually a fire door in order to prevent the passage of fla-me from one Hoor to the other through the conveyer openings.
  • A'conveyer for elevating articles, packages, boxes, crates and the like including a frame-work, an endless belt of flights and means for actuating the same, a conveyerapron at one end of said conveyer,v a second conveyer associated with said conveyerapron, means intermedia-te said second conveyer and said conveyer-apron for stopping said4 articles, &c., means on said conveyer- 130 engaging said stopped apron for engaging the stopped articles, & c., to lift the latter from said second conveyer onto said conveyer-apron, said endless belt of flights effecting the removal of said articles, &c., from said conveyer-'apron onto the main conveyer.
  • a conveyer for elevatin articles, packages, boxes, crates and the li e comprising a propellingmeans, a conveyer apron at one end of said conveyer, intermediate means between the said lpropelling means and the ⁇ said conveyer apron to drive the said conveyer apron intermittently, a Asecond conveyer assembled with saidy conveyer-apron, means between said second conveyer and l said conveyer-apron for stopping said artimentioned conveyer for stopping articles,
  • a conveyer for raising articles, packages, boxes, crates and the like comprising a conveyer, propelling means thereon, an auxiliary conveyer at one end thereof, a con-l veyer apron arrangedbetween said two conveyers, means for stopping articles, packages, boxes, crates and the like to be delivered to said conveyer apron, and means actuated by said conveyer apron to engage articles, packages, boxes, crates andthe like to be delivered thereon to raise the same onto said conveyer apron, said conveyer apron ⁇ being arranged'to deliver articles, packages,
  • a conveyer for elevating articles, packages, boxes, crates and the like comprising a propelling conveyer, an auxiliary conveyer arranged at one end thereof, an endless con- -veyer apron interposed between said two conveyers, means for stopping articles, packages, boxes, crates and the like on the second mentioned conveyer before delivering the same to the said conveyer apron, and the said articles, packages, boxes, crates and the like so stopped onto and upon the said conveyer apron, the said conveyer apron being arranged to deliver to the first mentioned conveyer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)

Description

H. E. WILLIAMS.
CONVBYBR.
APPLIGATION FILED MAY28,1912. 1,095,255. Patented May 5,1914.
' A 4 sHEBTsHsHBBT 1. 1 Q QQ E km t@ o Q 11 Oo o OQ @o A O? @n s o o k o m l o @9i/hmmm@ II. L. WILLIAMS.
Patented May 5, 1914.
4 SIIEETSPSIIIIIIT 2.
H. E. WILLIAMS.
GONVBYER. APPLICATION FILED MAYZS, 1912.
Patented May 5, 1914.
Www
Ils,
/IFIIIIIIIIIIII l v4 SHEETS-SHEET 3.
In q( H. E'. WILLIAMS.
GONVBYER.
APPLICATION FILED MAYzs, 1912,
WW1/wonen i,oa5,255.
UNITED sTATEs PAEENT oEEicE.
HARRY E. WILLIAMS, OF LOUISVILLE, KENTUCKY, .ASSIGNOR T0 DOW WIRE & IRON WORKS, OF LOUISVILLE, KENTUCKY, A CORPORATION.
GONVEYER.
' Speciication of Letters Patent.
Patented May5, 1914.
' To all- 'whom it may concern l Be it known that I, HARRY E. WILLIAMS, a citizen of the United States, residing at Louisville, in `the county of Jefferson and 'State of Kentucky, have invented certain new and useful Improvements in Conveyers; and I dodeclare the following to be a full, clear, and exact description of the in-` vention, such as will enable others skilled in the art to which it appertains'to make and use the same, reference being had to theaccompanying drawings, andto the letters and figures of reference marked thereon, which form a part of this s cification.
`This invention relates to thec ass of convey-l ers but more particularly to a conveyer which can be employed for both raising and'lowering articles, packages, boxes, crates and the like, and the invention has for its object to pro vide a combined raising and lowering conveyer which is so constructed and arranged that articles, packages, boxes, crates and the like can be` raised and deposited on any desired floor inthe building and in which articles, packages, boxes, crates and the like can be conveyed from any floor' in the build ing in a downward direction.
A further object of the inventionis to provide the conveyer with certain fire proof doors arranged at each floor or story in the building in such manner that they will automatically close in the event of fire.
A further object of the invention is to provide a conveyer which is so constructed, and arranged as to receive the articles, pack.I ages, boxes, crates and the 11ke and convey,-
the same either upwardly or downwardly without injuring or breaking the articles, packa es, boxes, crates and the like.
A girther object of the invention is to provide a, conveyer of the character described which is extremely simple in its construction, cheap and easy to manufact-ure,
. strong, durable and etlicient.
With these and other objects in view the invention consists in the construction of the conveyer and in its component parts; and the invention consists in the novel arrangement for raising and handling the articles, packages, boxes, crates and the like at the lower end of the conveyer in .such manner that the same cannot be injured or broken by the conveyer chain'and ilights.
The invention further consists in the novel construction for depositing articles, packages, boxes, crates and the like at any desired licor throughout the length of the conveyer.
The invention further consists in the novel construction and arrangement of the safety fire doors.
The invention further consists in certain other novel details of construction and in .transverse .sectional view of the frame and door of the conveyer taken on line6-6 lof Fig. l, and Fi tudinal vertica sectional view showing a modified construction of the arrangement of intermediate doors o r openings for delivering an article, ackage, box, crate and the like at interm iate openings through out the length of the conveyer.
Like numerals of reference indicate the same parts throughout the several figures in whch- 1 indicates the conveyer which comprises the longitudinal lower frame pieces 2 (Fig. 6) and the upper longitudinal frame pieces 7 is a. fragmentary longiy 3, the lower frame pieces 2 being preferably constructed of channel-iron as shown, while the upper frame ieces 3 are constructed of angle-iron. he lower frame pieces 2 are connected together at intervals by means of the transverse connecting floor supporting braces 4, upon which transverse braces 4 are arranged the longitudinal Hoor pieces 5 in the manner as shown in Fig. 6, said longitudinal floor pieces 5 extending the full length of the conveyer and forming the Hoor upon which articles, packages, boxes, crates and the like slide on their upward or downward movement on the conveyer. The upper and lower longitudinal frame pieces 2 and 3 are connected together l at intervals by verticalframe pieces 6 of angle-iron or of any other suitable material,
. andthe said longitudinal frame pieces are also lconnected together by truss pieces 7 arranged conveniently to add strength and rlgidity to the structure.
8 indicates the upper sprockets for the conveyer chain and 9 indicates the lower sprockets over which sprockets the conveyer chain 10 travels, said conveyer chain 10 being composed of a series of links 11 connected together by transverse pins 12 upon which are mounted rollers 13, said rollers 13 rolling on the upper and lower longitudinal ' frame pieces 2 and 3 in the manner as illustrated in Figs. 4 and 5. By means of this construction the friction of the chains is reduced to a minimum.
In order to maintain the chains in their proper relative positions I provide at the lower bend of the conveyer a pair of guide pieces .14 curved inaccordance with the bend in the conveyer under which the conveyer chains travel, and at the bend in the upper frame pieces 3 I provide similar guides 15, which guides 15 are vertically adjustable at 16, in order to take up the slack in the conveyer chains and to adjust the tension of the same on its sprockets 8 and 9. The conveyer chain is preferably driven at the top end. of the yconveyer by a pulley 17 V(Fig. 4) driving a pair of gear wheels 18 mounted on a transverse shaft 19, said gear wheels 18 meshing with pinions 2O mounted on the sprocket wheel shafts 21 although, as is, of course, apparent, the conveyer chains can be driven from the lower sprockets 9 by the simple application of the gearing just described tothe lower end of the conveyer.
Referring nowl particularlyv to Fig. 3 it will be seen that the floor of the conveyer terminates at the point 22 under the lower sprockets 9 while a conveying apron 23 mounted on rollers 24 is disposed in line with the ioor of the conveyer, said apron 23 being driven by means of a pinion 25 (Fig. 1) mounted 0n the shaft of the forward apron roller 24, said pinion 25 meshing with the partially toothed gear wheel 26 lmounted on the shaft 27 of the lower sprocket wheels 9 for a purpose. which will be presently described. Approaching the endless apron-23 is a short conveyer 28 composed f the rollers 29 by which the 'articles, packages, boxes, crates and the like are conveyed to the apron 23. Referring in this connection to Fig. 2 it will be seen that I interpose between the end of the short conveyer 28 and the outer end of the conveyer apron 23 two stops 30 which stops are arranged to prevent the passage ofl an article,
package, box, crate and the like on to the endless apron- 23; while it will be seenA from Figs. 2 and43 that lI dispose on the apron 23 a projection 31which projection is moved with the apron 23 and passed up between the end of the apron 23 and the inner end of the short conveyer 28 inv the manner as illustrated in Figs. 2 and 3.
Vhile the drawings illustrate a single.
intermediate chute or conveyer between the ends thereof it is of course perfectly apparent that as many intermediate chutes can be arranged as there are iioors or stories in the building and it is simply a matter of duplicating the chutes in order to make the conveyer applicable to a building of any hei ht. i
-eferring now to Figs. 1 and 3 it will be seen that the floor 5 is provided with an opening 32 and communicates with'an inclinedchute 33 in such manner that an article, package, box, crate and the like bein veyed by the conveyer chains will be deposited on the said chute 33 and is led by gravity onto the lower conveyer 34. As before stated,'as many of these chutes are arranged in the conveyer as there -arc stories in the building, providing of course that the conveyer extends the entire height of the building, and when it is desired to convey articles, packages, boxes, crates and the like either up or down, without having them deposited at intermediate points, a removable floor-section 35 shown in dotted lines in Fig. 3 and in full lines in Fig. l, is arranged at the openings 32 in order to provide a continuous ioor the entire length of thev conveyer, and it is obvious that any one of the said removable Hoor-sections 24 can be removed in order to deposit articles, packages, boxes, crates and the like at any desired point intermediate the ends ofthe conveyer. Referring in this connection to Fig. 7, however, it will be seen that in place of theremovable floor section 5, I can pivot the section 36 at the point 37 and so hold the section 36 by a weight 38 so as to maintain the said section 36 normally inproper position, and I can arrange a slide 39 to pass under the end 40 of the hinged section 36 in order to maintain the section 36 in its normal position'during the passage of the articles, packages, boxes, crates and the like either upwardly or downwardly of the conveyer, and when it is desired to deposit an article, package, box, crate and the like at ay intermediate' point along the length of the conveyer it is simply necessary to move the slide 39 into position shown in full lines in Fig. 7, and as the article, package, box,
con-
crate and the like reaches the hinged section 36 lthe weight of, the same will cause said hinged section to swing down into position shown in dotted lines in Fig.l 7 and causeV the weight 38 Ato be raised into position shown in dotted lines in said figure which will cause the article, package, box, crate and the like to be lowered onto the end 4l of the roller conveyer 34 and as soon as the article, package, box, crate and the like is thus del veyer. For the purpose. of having the oon- .veyer dights engage the articles, packages, boxes, crates and the like in a proper mannerat the bot-tom of the conveyer so that there will be no possibility of damage or breakage to' the articles, packages, boxes,
lcrates and the like conveyed I arrange the construction as illustrated in Figs. ,l and`3 which has been previously described and which opera-tes as follows: IVhen' an article, package, box, crate and the like to be conveyed is placed on the lower roller conveyer 28 the said article, package, box, crate and the like engages the stops 30 and is held in a stationary position until the extension 31 on the apron 23 comes into position shown in Figs. 2 and 3, and as the conveyer apron 23 carries ythe projection 3l in an upward direction the said projection comes under the end or forward edge of the article, package, box, crate and the like and raises the same. clear of the stops 30 and onto the conveyer apron 23 in such manner that the article, package, box, crate and the like is conveyed by the said apron 23 onto the floor of the conveyer. AWhen the article, package, box, crate and the like is thus conveyed a chain Hight is in position to engage the same from behind to raise and elevate the same on the conveyer..V However, as the-partially toothed or 'mutilated gear wheel 26 and the pinion-..25 are so timed that the conveyer apron 23 is not moved whenever one'of the* transverse Hights is passing around the sprocket wheels. 'Ihis system of gearing is so timed that the endless conveyer apron 23 makes only one revolution and is then stopped. By means of this construction it is perfectly apparent that the articles, packages, boxes, crates and the like can never come on the conveyer apron 23 at a time when the same would be in position to be struck with the chain iiights in such manner as to damage and injure the same'for the reason that the conveyer apron 23 is at rest and is at a full stop whenever the chain flights are making the turn around the sprocket wheels 9 so that by this arrangement the articles, packages, boxes, crates and the like are delivered to the conveyer floor at a time when the conveyer flights are in a safe position so as not to contact with and damage the article, package, boX, crate and the like. This as is perfectly apparent is a material feature of this invention for the reason that without this safe-guard delicate and fragile articles, packages, boxes, crates and the like would be liable to severe injury and breakage, while heavy and tough articles, packages, boxes, crates and the like l would severely injure the chain flight should they be under the same when the said fiight is making its turn around thelower sprocket wheels.
Having thus fully described the invent-ion the operation of the same is apparent from the foregoing description taken in connection with the accompanyingdrawings. As a: matter of safety I provide as many fire doors in the conveyer as there are fioors to the building through which the conveyer passes, said fire doors being clearly illustrated in Figs. land 3, and are constructed preferably of sheet iron, the doors 45 being hinged at 46 and suspended in the position shownin Figs. l and 2 by means. of a. fuse 47, which fuse 47is of such character that the same will part when heated and allow the doors 45 to drop into a horizontal position to completely close the openings in the doors through which the conveyer passes, thus forming eifectually a fire door in order to prevent the passage of fla-me from one Hoor to the other through the conveyer openings.
Having thus fully described the invention it is of course apparent that the same is capable of certain changes and modifications in the construction which would clearly fall within the limit and scope of this invention, and I consider myself clearly entitled to all .such changes and modifications which fall within the terms of the following claims.
What I claim as new and desire to secure by Letters Patent of the United States is -1. ,-Aconveyer for elevating articles, packages, boxes, crates and the like comprising a suitable frame-work and means forl propelling articles, packages, boxes, crates and the like up the conveyer, a conveyer-apron at one end of said conveyer, a Second conveyer associated with said conveyer-apron, means intermediate said second conveyer and said conveyer-apron for stopping said articles, &c., means on said conveyer-apron for engaging the. stopped articles &c., to lift the latter from said second conveyer onto said conveyer-apron, said propelling means effecting the removal of said articles &c., from said conveyer-apron onto the main elevator.
' 2. A'conveyer for elevating articles, packages, boxes, crates and the like, including a frame-work, an endless belt of flights and means for actuating the same, a conveyerapron at one end of said conveyer,v a second conveyer associated with said conveyerapron, means intermedia-te said second conveyer and said conveyer-apron for stopping said4 articles, &c., means on said conveyer- 130 engaging said stopped apron for engaging the stopped articles, & c., to lift the latter from said second conveyer onto said conveyer-apron, said endless belt of flights effecting the removal of said articles, &c., from said conveyer-'apron onto the main conveyer.
3. A conveyer for elevatin articles, packages, boxes, crates and the li e comprising a propellingmeans, a conveyer apron at one end of said conveyer, intermediate means between the said lpropelling means and the` said conveyer apron to drive the said conveyer apron intermittently, a Asecond conveyer assembled with saidy conveyer-apron, means between said second conveyer and l said conveyer-apron for stopping said artimentioned conveyer for stopping articles,
delivered thereto by packages, boxes, crates land the like, and means on said lconveyer apron for engaging articles, packages, boxes, crates and the like the said second mentioned conveyer.
-means' for raising 5. A conveyer for raising articles, packages, boxes, crates and the like comprising a conveyer, propelling means thereon, an auxiliary conveyer at one end thereof, a con-l veyer apron arrangedbetween said two conveyers, means for stopping articles, packages, boxes, crates and the like to be delivered to said conveyer apron, and means actuated by said conveyer apron to engage articles, packages, boxes, crates andthe like to be delivered thereon to raise the same onto said conveyer apron, said conveyer apron `being arranged'to deliver articles, packages,
boxes, crates and the like to the first mentioned conveyer.
6. A conveyer for elevating articles, packages, boxes, crates and the like comprising a propelling conveyer, an auxiliary conveyer arranged at one end thereof, an endless con- -veyer apron interposed between said two conveyers, means for stopping articles, packages, boxes, crates and the like on the second mentioned conveyer before delivering the same to the said conveyer apron, and the said articles, packages, boxes, crates and the like so stopped onto and upon the said conveyer apron, the said conveyer apron being arranged to deliver to the first mentioned conveyer.
In testimony whereof, I affix my signature, in presence of two Witnesses.
HARRY E. l WILLIAMS.
YVitnesses: t
A. L. MARCUM, a C. IV. WHITE.
US70019212A 1912-05-28 1912-05-28 Conveyer. Expired - Lifetime US1095255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US70019212A US1095255A (en) 1912-05-28 1912-05-28 Conveyer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70019212A US1095255A (en) 1912-05-28 1912-05-28 Conveyer.

Publications (1)

Publication Number Publication Date
US1095255A true US1095255A (en) 1914-05-05

Family

ID=3163462

Family Applications (1)

Application Number Title Priority Date Filing Date
US70019212A Expired - Lifetime US1095255A (en) 1912-05-28 1912-05-28 Conveyer.

Country Status (1)

Country Link
US (1) US1095255A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424292A (en) * 1945-04-12 1947-07-22 Harmon L Watkins Endless pusher conveyer
US2615586A (en) * 1949-02-07 1952-10-28 Einer A Miller Mobile bale handling equipment
DE1222426B (en) * 1962-10-02 1966-08-04 Carl Liebau Conveyor belt for root crops or beet harvesters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424292A (en) * 1945-04-12 1947-07-22 Harmon L Watkins Endless pusher conveyer
US2615586A (en) * 1949-02-07 1952-10-28 Einer A Miller Mobile bale handling equipment
DE1222426B (en) * 1962-10-02 1966-08-04 Carl Liebau Conveyor belt for root crops or beet harvesters

Similar Documents

Publication Publication Date Title
US1095255A (en) Conveyer.
US2130323A (en) Conveyer system
US1506843A (en) Elevator
US991148A (en) Elevator.
US701459A (en) Passenger or goods elevator or conveyer.
US1829317A (en) Loading and unloadng mechanism for elevators
US1763812A (en) Automatic safety control for conveyers
US1636429A (en) Automatic transfer mechanism for conveyers
US1086886A (en) Conveyer.
US395883A (en) Chain conveyer
US1414674A (en) Conveying apparatus
US1445588A (en) Combined elevator and conveyer of the step or stairway type
US790811A (en) Conveyer.
US2641353A (en) Conveyer system, including a stacker, trailing conveyer, and belt lifting feed hopper
US2028235A (en) Belt conveyer system
US1168865A (en) Side-delivery conveyer.
US928183A (en) Conveying system.
US1130877A (en) Conveying system.
US1907456A (en) Automatic box stack dumper
US1826832A (en) Conveyer feeding mechanism
US1219898A (en) Automatic package-elevator.
US719890A (en) Conveyer.
US1914708A (en) Conveyer unloading device
US1017941A (en) Conveyer.
US741447A (en) Conveyer system.