US368569A - Manufacture of conveyer-flights - Google Patents
Manufacture of conveyer-flights Download PDFInfo
- Publication number
- US368569A US368569A US368569DA US368569A US 368569 A US368569 A US 368569A US 368569D A US368569D A US 368569DA US 368569 A US368569 A US 368569A
- Authority
- US
- United States
- Prior art keywords
- metal
- flight
- rolls
- strip
- flights
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000002184 metal Substances 0.000 description 19
- 230000010006 flight Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
Definitions
- Figure 1 is a side view of a strip of metal from which I make my flight.
- Fig. 2 is a vertical section of the same.
- Fig. 3 is a perspective showing one of my flights before it is secured to its shaft.
- Fig. i is a side elevation showing one of my flights upon its shaft.
- Fig. 5 is a vertical front elevation of rollers or mechanism for making the flights, partly broken away to show ithe strip or bar of metal as it is about to pass.
- Fig. 6 is a side elevation of the same.
- the object of my invention is to provide a continuous and seamless eonveyer-flight,which I accomplish by making the flight from along strip of metal, as illustrated in the drawings, and hereinafter fully described.
- My invention consists in the hereinafter-described method by which such continuous and seamless flights are made.
- A represents a strip of metal, the width of which is about equal to the width of flight to be made, and its length is sufflcient to form a continuous flight of the desiredlength.
- This strip of metal is in crosssection somewhat V-shaped in forin-that is, it is much wider at the upper edge than at the lower edge, as shownin Fig. 2--which shape can be given to it by means of suitable rolls in a rolling-n1ill.
- the width of the strip of metal depends upon the width of the flight to be made and itslength upon the length and pitch of the flight. I can without difficulty make flights continuous and seamless for a shaft of any rea sonable desired length.
- the relative thickness of the strip of metal at its inner and outer edges depends on the diameter of the cylinder, or the-center upon which the flight is to be placed, and upon its width and pitch.
- the two rolls B B revolve in opposite directions, and may be driven by gear-wheels (not shown) in any well-known manner. There are no feeding devices. The rolls will draw the strip of metal into and force it through between them, as usual, operating just as other rolls for rolling metal operate. The end of the strip of metal can be flattened, if necessary, to facilitate its entry between the rolls.
- the thick edge of the strip will be flattened and of course will be lengthened, and the rolls being larger in diameter at one end than at the other the thick edge of the strip will be forced through between the rolls more rapidly than the thin edge, and as the strip comes from the rolls, having been brought to a uniform thickness, it will neces sarily assume a curved and spiral form,whether a mandrel be used or not; but a mandrel or shaft is desirable, because the metal should be rolled hot and the mandrel will support the flight and keep it from bending and getting out of shape.
- the mandrel or shaft may remain stationary. It will not revolve. It may be moved longitudinally at a speed about the same as that at which the completed flight is formed; but this movement of the mandrel is not essential.
- the flight may be passed around the shaft which is to be a part of the completed conveyer; or it may be passed around a separate core, shaft, or cylinder, and then removed therefrom and placed upon the permanent shaft of the conveyer.
- Fig. 3 I have shown a portion of a seamless continuous conveyer-flight made as above described, and in Fig. 4 I have shown the same flight upon its shaft ready for use, if properly form thickness and spiral form, substantially 30 as and for the purpose specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Description
0. CALDWELL.
- MANUFACTURE OF GONVEYER FLIGHTS.
No. 368,569. Patented Aug. 23, 188.7
29.1. i 7 y flg (No Model.) 2 Sheets-Sheet 2v 0. CALDWELL.
I MANUFACTURE OF GONVEYER FLIGHTS. No. 368,569. Patented Aug. 23, 1887.
N PETERS Pholo-Lflho rapher Washmglon D a UNITED STATES PATENT OFFICE.
OLIVER OALDWVELL, OF CHICAGO, ILLINOIS.
MANUFACTURE OF CONVEYER-FLIGHTS.
SPECIFICATION forming part of Letters Patent No, 368,569, dated August 23, 1887.
Application filed January 3, 1887. Serial No. 223,273. (No model.)
To all whom it may concern.-
Be it known that I, OLIVER QALDWELL, residing at Chicago, in the county of Cook and State of Illinois, and a citizen of the United States, have invented a new and useful Improvement in ConveyerFlights, of which the following is a full description, reference being had to the accompanying drawings, in which Figure 1 is a side view of a strip of metal from which I make my flight. Fig. 2 isa vertical section of the same. Fig. 3 is a perspective showing one of my flights before it is secured to its shaft. Fig. i is a side elevation showing one of my flights upon its shaft. Fig. 5 is a vertical front elevation of rollers or mechanism for making the flights, partly broken away to show ithe strip or bar of metal as it is about to pass. Fig. 6 is a side elevation of the same.
It is common to make conveyer-flights of sheet metal, a completed flight being made of a number of sections riveted or otherwise socured together. i
The object of my invention is to provide a continuous and seamless eonveyer-flight,which I accomplish by making the flight from along strip of metal, as illustrated in the drawings, and hereinafter fully described.
My invention consists in the hereinafter-described method by which such continuous and seamless flights are made.
In the drawings, A represents a strip of metal, the width of which is about equal to the width of flight to be made, and its length is sufflcient to form a continuous flight of the desiredlength. This strip of metal is in crosssection somewhat V-shaped in forin-that is, it is much wider at the upper edge than at the lower edge, as shownin Fig. 2--which shape can be given to it by means of suitable rolls in a rolling-n1ill. To make a flight from this strip of metal,I pass the same,prefer'ably while hot, between two rolls, B B, each being the frustum of a cone, the faces a a of the rolls being parallel to each other where they act on the metal strip and both being of the same size, the thick edge of the strip of metal being toward the large ends of the rolls, and this thick edge will be stretched and flattened while the strip is passing through the rolls, so that the l whole strip will become of uniform thickness;
but it will be carried through the rolls at the thick edge faster than at the thin edge, and the thick edge, of course, will become much longer than the thin edge. The strip as it comes from the rolls will have a tendency to assume the form which a conveyer-flight has, and it can be made somewhat less in diameter than the diameter of the shaft of the completed conveyer. The desired pitch will be given to the flight by the passage of the metal between the rolls. It will be understood that the various rolls specified are supported in suitable bearings and that they are driven by suitable gearing.
It will be readily seen that there must be a greater quantity of metal at the outer portion of the flight than at the central portion. This I provide for by using strips of metal having in cross-section the form shown in Fig. 2, the surplus metal being flattened and spread out by the action of the rolls.
The width of the strip of metal depends upon the width of the flight to be made and itslength upon the length and pitch of the flight. I can without difficulty make flights continuous and seamless for a shaft of any rea sonable desired length. The relative thickness of the strip of metal at its inner and outer edges depends on the diameter of the cylinder, or the-center upon which the flight is to be placed, and upon its width and pitch.
The two rolls B B revolve in opposite directions, and may be driven by gear-wheels (not shown) in any well-known manner. There are no feeding devices. The rolls will draw the strip of metal into and force it through between them, as usual, operating just as other rolls for rolling metal operate. The end of the strip of metal can be flattened, if necessary, to facilitate its entry between the rolls. By passin g through the rolls the thick edge of the strip will be flattened and of course will be lengthened, and the rolls being larger in diameter at one end than at the other the thick edge of the strip will be forced through between the rolls more rapidly than the thin edge, and as the strip comes from the rolls, having been brought to a uniform thickness, it will neces sarily assume a curved and spiral form,whether a mandrel be used or not; but a mandrel or shaft is desirable, because the metal should be rolled hot and the mandrel will support the flight and keep it from bending and getting out of shape. The mandrel or shaft may remain stationary. It will not revolve. It may be moved longitudinally at a speed about the same as that at which the completed flight is formed; but this movement of the mandrel is not essential.
The flight may be passed around the shaft which is to be a part of the completed conveyer; or it may be passed around a separate core, shaft, or cylinder, and then removed therefrom and placed upon the permanent shaft of the conveyer.
In Fig. 3 I have shown a portion of a seamless continuous conveyer-flight made as above described, and in Fig. 4 I have shown the same flight upon its shaft ready for use, if properly form thickness and spiral form, substantially 30 as and for the purpose specified.
OLIVER GALDXVELL.
Witnesses:
ALBERT H. ADAMS, HARRY T. J oNEs.
Publications (1)
Publication Number | Publication Date |
---|---|
US368569A true US368569A (en) | 1887-08-23 |
Family
ID=2437586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US368569D Expired - Lifetime US368569A (en) | Manufacture of conveyer-flights |
Country Status (1)
Country | Link |
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US (1) | US368569A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2760255A (en) * | 1951-05-26 | 1956-08-28 | Charles E Compton | Screw conveyor and manufacture thereof |
US3729968A (en) * | 1969-05-05 | 1973-05-01 | D Norris | Working of strip metal |
US4445353A (en) * | 1981-09-17 | 1984-05-01 | Westinghouse Electric Corp. | Apparatus for manufacturing helical cores |
US4813126A (en) * | 1986-10-01 | 1989-03-21 | Williamson Windings Inc. | Apparatus and method for fabricating magnetic devices |
US6443040B1 (en) * | 1997-12-23 | 2002-09-03 | Wam S.P.A. | Process for manufacturing screws and a device for actuating the process |
US20060214546A1 (en) * | 2005-03-28 | 2006-09-28 | Lowick Casey T | Feed center |
US20140305262A1 (en) * | 2013-04-10 | 2014-10-16 | Lenham Machinery Limited | Screw Conveyors, Augers, and Flighting for Use Therein |
CN107891078A (en) * | 2017-10-24 | 2018-04-10 | 十堰市双兴净化器有限公司 | A kind of raw material and its manufacture method for being used to manufacture uniform thickness helical blade |
-
0
- US US368569D patent/US368569A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2760255A (en) * | 1951-05-26 | 1956-08-28 | Charles E Compton | Screw conveyor and manufacture thereof |
US3729968A (en) * | 1969-05-05 | 1973-05-01 | D Norris | Working of strip metal |
US4445353A (en) * | 1981-09-17 | 1984-05-01 | Westinghouse Electric Corp. | Apparatus for manufacturing helical cores |
US4813126A (en) * | 1986-10-01 | 1989-03-21 | Williamson Windings Inc. | Apparatus and method for fabricating magnetic devices |
US6443040B1 (en) * | 1997-12-23 | 2002-09-03 | Wam S.P.A. | Process for manufacturing screws and a device for actuating the process |
US20060214546A1 (en) * | 2005-03-28 | 2006-09-28 | Lowick Casey T | Feed center |
US20140305262A1 (en) * | 2013-04-10 | 2014-10-16 | Lenham Machinery Limited | Screw Conveyors, Augers, and Flighting for Use Therein |
US9061345B2 (en) * | 2013-04-10 | 2015-06-23 | Lenham Machinery Ltd | Screw conveyors, augers, and flighting for use therein |
CN107891078A (en) * | 2017-10-24 | 2018-04-10 | 十堰市双兴净化器有限公司 | A kind of raw material and its manufacture method for being used to manufacture uniform thickness helical blade |
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