US444578A - Lengthening metallic beams - Google Patents
Lengthening metallic beams Download PDFInfo
- Publication number
- US444578A US444578A US444578DA US444578A US 444578 A US444578 A US 444578A US 444578D A US444578D A US 444578DA US 444578 A US444578 A US 444578A
- Authority
- US
- United States
- Prior art keywords
- beams
- pieces
- cheek
- lengthening
- metallic beams
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/2045—Mechanical means for guiding or retaining the load on the load-carrying surface
- B65G21/2063—Mechanical means for guiding or retaining the load on the load-carrying surface comprising elements not movable in the direction of load-transport
- B65G21/2072—Laterial guidance means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/04—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening internal, i.e. with spreading action
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5741—Separate screw or pin-type connections
Definitions
- PETER H JACKSON, OF SAN FRANCISCO, CALIFORNIA.
- My invention relates to a means for lengthening iron and steel rolled and other metal beams and strengthening the joint; and it consists in a means for uniting the abutting ends of such beams in such a manner as to increase the strength of the beam thus united at its point of union. 7
- Figure 1 is a side elevation showing one form of union.
- Fig. 2 is a transverse section of the same.
- Fig. 3 is a View showing cheekpieces used with this coupling.
- the capacity of rolling-mills limits the length of rolled beams, and when beams are needed of greater length to span large rooms or other spaces, either a supporting column, pier, or post must be used, or if such support be inadmissible it is necessary to build up what is known as a plate or box girder at an increased cost over'the rolled beams and with a less reliable strength on account of its being built of a number of pieces and riveted together.
- the first method of construction which I have shown I employ cheek-pieces A, which are made of iron or steel, the latter being preferred. These pieces are of sufficient length to extend some distance on each side of the abutting ends of the beams B, and they inclose the beams upon each side of their abutting ends, extending upon each side of the web and inclosing the top and bottom flanges of the beam, as shown,
- the plates D extend along the top and bot tom, projecting on each side so that their edges are flush with the flanges C of the Serial No. 344,557. (No mo el.)
- the cheek-pieces A are secured to the webs B and also to the flanges C of the beams by a sufflcient number of rivets, and the top and bottom plates D are secured to the cheek-pieces and also through the top and bottom flanges of the beams in a similar manner by rivets, so that the whole is solidly secured together.
- the cheek-pieces practically form external girders having a similar shape to the girder or beam which they inclose, and being secured thereto with the top and bottom plates they form an inclosing boX, within which the ends of the beams meet and by which they are held with a strength which is even greater than any other portion of the beam and in excess of all requirements for the strain to which the beam will be subjected.
- the top and bottom flanges of these c eek-pieces may be made thicker in the middle than at the ends, the swell or taper giving additional strength at the joint or meeting point of abutting beams, as shown at a.
- top and bottom plates may be extended beyond the beam flanges, and employ tie-bolts E, which pass through these plates, being secured by nuts screwed upon the ends of the bolts, and blocking-pieces F may be fitted into the concavity or depression formed in the sides of the cheekpieces, so as to fill up these spaces flush with the outer edges of the top and bottom plates.
- blocking-pieces may be secured in place by bolts passing transversely through them or may be recessed for the vertical bolts E, the cheek-pieces, and the webs of the abutting beams with the top and bottom flanges, thus providing sufficient strength to resist all tensile, compressive, and shearing strains which may occur.
- a means for lengthening metallic beams consisting of metallic inclosing plates or cheek-pieces extending across the point of meeting of two abutting beams and fitting the webs and heads of said beams, in combination with top and bottom plates extending over said heads and said cheek-pieces, and the top and bottom plates being riveted together and to the heads of the inclosed beams, substantially as herein described.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Description
(No Model.) v
' P. H. JACKSON.
LENGTHENING METALLIC BEAMS.
No. 444,578. Patented Jan. 13, 1891 we wows ve'rsns 0a., mam-mam, wl-snmcvcn, n. c.
UNITED STATES PATENT OFFICE.
PETER H. JACKSON, OF SAN FRANCISCO, CALIFORNIA.
LENGTHENING METALLIC BEAMS.
SPECIFICATION forming part of Letters Patent No. 444,578, dated January 13, 1891.
Application filed March 19, 1890.
To all whom it may concern.-
Be itknown that I, PETER H. JACKSON, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Lengthening Metallic Beams; and I hereby declare the following to bea full, clear, and exact description of the same.
My invention relates to a means for lengthening iron and steel rolled and other metal beams and strengthening the joint; and it consists in a means for uniting the abutting ends of such beams in such a manner as to increase the strength of the beam thus united at its point of union. 7
Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a side elevation showing one form of union. Fig. 2 is a transverse section of the same. Fig. 3 is a View showing cheekpieces used with this coupling.
The capacity of rolling-mills limits the length of rolled beams, and when beams are needed of greater length to span large rooms or other spaces, either a supporting column, pier, or post must be used, or if such support be inadmissible it is necessary to build up what is known as a plate or box girder at an increased cost over'the rolled beams and with a less reliable strength on account of its being built of a number of pieces and riveted together.
It is important when a number of beams or girders of great length are employed that there should be as little deflection as possible, and myimproved construction is designed to increase the strength of the girder at the point where the joint is made. 111 the first method of construction which I have shown I employ cheek-pieces A, which are made of iron or steel, the latter being preferred. These pieces are of sufficient length to extend some distance on each side of the abutting ends of the beams B, and they inclose the beams upon each side of their abutting ends, extending upon each side of the web and inclosing the top and bottom flanges of the beam, as shown,
The plates D extend along the top and bot tom, projecting on each side so that their edges are flush with the flanges C of the Serial No. 344,557. (No mo el.)
beams. The cheek-pieces A are secured to the webs B and also to the flanges C of the beams by a sufflcient number of rivets, and the top and bottom plates D are secured to the cheek-pieces and also through the top and bottom flanges of the beams in a similar manner by rivets, so that the whole is solidly secured together. The cheek-pieces practically form external girders having a similar shape to the girder or beam which they inclose, and being secured thereto with the top and bottom plates they form an inclosing boX, within which the ends of the beams meet and by which they are held with a strength which is even greater than any other portion of the beam and in excess of all requirements for the strain to which the beam will be subjected. The top and bottom flanges of these c eek-pieces may be made thicker in the middle than at the ends, the swell or taper giving additional strength at the joint or meeting point of abutting beams, as shown at a.
In some casesit may be desirable to extend the top and bottom plates beyond the beam flanges, and employ tie-bolts E, which pass through these plates, being secured by nuts screwed upon the ends of the bolts, and blocking-pieces F may be fitted into the concavity or depression formed in the sides of the cheekpieces, so as to fill up these spaces flush with the outer edges of the top and bottom plates. These blocking-pieces may be secured in place by bolts passing transversely through them or may be recessed for the vertical bolts E, the cheek-pieces, and the webs of the abutting beams with the top and bottom flanges, thus providing sufficient strength to resist all tensile, compressive, and shearing strains which may occur. s
In place of the bolts or rivets which are used to secure the cheek-pieces, plates, and blocking-pieces, it will be manifest that the continuous bands K may be employed to hold these parts in place as shown in Fig. 4.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. A means for lengthening metallic beams, consisting of metallic inclosing plates or cheek-pieces extending across the point of meeting of two abutting beams and fitting the webs and heads of said beams, in combination with top and bottom plates extending over said heads and said cheek-pieces, and the top and bottom plates being riveted together and to the heads of the inclosed beams, substantially as herein described.
2. The improvement in lengthening rolled beams and strengthening the joints formed by the meeting ends of two beams, consisting of metal cheek-pieces fitting the webs and heads of the beams, top and bottom plates riveted to said cheek-pieces and to the heads, and rivets passing through the cheek-pieces and the webs of the beams, substantially as herein described. 15
In witness whereof I have hereunto set my hand.
PETER H. JACKSON.
Witnesses:
GEO. H. STRONG, S. II. NOURSE.
Publications (1)
Publication Number | Publication Date |
---|---|
US444578A true US444578A (en) | 1891-01-13 |
Family
ID=2513471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US444578D Expired - Lifetime US444578A (en) | Lengthening metallic beams |
Country Status (1)
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US (1) | US444578A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662709A (en) * | 1951-11-15 | 1953-12-15 | T J Cope Inc | Angle connector for electric cable supporting trough systems |
US4046248A (en) * | 1974-01-15 | 1977-09-06 | Chemcut Corporation | Connecting and alignment means for modular chemical treatment system |
US20230220668A1 (en) * | 2016-02-08 | 2023-07-13 | Steven A. Roth | Method of attaching a load to metal decking |
-
0
- US US444578D patent/US444578A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662709A (en) * | 1951-11-15 | 1953-12-15 | T J Cope Inc | Angle connector for electric cable supporting trough systems |
US4046248A (en) * | 1974-01-15 | 1977-09-06 | Chemcut Corporation | Connecting and alignment means for modular chemical treatment system |
US20230220668A1 (en) * | 2016-02-08 | 2023-07-13 | Steven A. Roth | Method of attaching a load to metal decking |
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