US162001A - Improvement in chairs - Google Patents
Improvement in chairs Download PDFInfo
- Publication number
- US162001A US162001A US162001DA US162001A US 162001 A US162001 A US 162001A US 162001D A US162001D A US 162001DA US 162001 A US162001 A US 162001A
- Authority
- US
- United States
- Prior art keywords
- chairs
- improvement
- chair
- wedge
- oval
- 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 description 4
- 239000002023 wood Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Images
Classifications
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- 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
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
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- 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
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/10—Details of socket shapes
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- 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
- Y10T403/46—Rod end to transverse side of member
-
- 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
- Y10T403/46—Rod end to transverse side of member
- Y10T403/4602—Corner joint
Definitions
- My improvement has special relation to chairs manufactured of Wood; and consists in the novel mode of securing ⁇ the legs and rounds in position.
- A represents a portion of the frame of the bottom of a chair; B, a leg of the chair, and C the rounds.
- the holes ct are oval at bottom, but round at the entrance. 1n one diameter these holes are the same throughout their extent; but in the opposite direction they widen toward their bottom, forming an oval bottom.
- the portions b which are designed to be secured within these holes, are made roupd to fit tightly in entering the round entranceto the holes. These portions are kerfed or split to allow the entrance of a wedge, as shown in Fig. 2. To avoid splitting too far from the end, two splits and two wedges may become necessary, as shown at b', Fig. 3.
- a socket-and-tenon joint substantially as described, for the manufacture of chairs and other articles, the socket being formed with two of its sides parallel, but widening in a transverse direction, so as to form an oval at its bottom, for the purpose set forth.
Description
BENJAMIN F. ALLEN, BOSTON, MASSACHUSETTS.
IMPRCVEMENT IN CHAIRS.
Specification forming part of Letters Patent No. 162,001, dated April 13, 1875; application filed April 10, 1874.
To all whom 'it may concern.'
Be it known that I, BENJAMIN F.ALLEN, of Boston, Massachusetts, have invented a new and useful Improvement in the Manufacture of Chairs, of which the following is a clear, full, and exact description, reference being had to the accompanying drawings, making a part of this specification, in which- Figure I represents a portion of a chair, showing my improvement in securing the legs and rounds. Fig. 2 is a vertical section of same; Figs. 3 and 4, details referred to in specification.
My improvement has special relation to chairs manufactured of Wood; and consists in the novel mode of securing` the legs and rounds in position.
In order to enable others skilled in the art to make and use my invention, I will proceed to describe the exact manner in which I have carried it out. l
In the drawings, A represents a portion of the frame of the bottom of a chair; B, a leg of the chair, and C the rounds. The holes ct are oval at bottom, but round at the entrance. 1n one diameter these holes are the same throughout their extent; but in the opposite direction they widen toward their bottom, forming an oval bottom. The portions b, which are designed to be secured within these holes, are made roupd to fit tightly in entering the round entranceto the holes. These portions are kerfed or split to allow the entrance of a wedge, as shown in Fig. 2. To avoid splitting too far from the end, two splits and two wedges may become necessary, as shown at b', Fig. 3.
The mode of putting the chairs together is as follows: When the holes have been bored, as above described, the wedge is inserted into the end b, as shown in Fig. 3. This is then inserted in the hole a, the Wedge being transverse the oval in the hole, and b is driven down until it reaches the bottom, the wedge in the meantime being forced up into b, and
causing it to expand in the longer direction of the oval until it completely fills the whole space, as shown in Fig. 2.
From the foregoing description and explana-l tion it will be readily understood that a chair thus made can never be forced apart except by breakage. It is well known that the peculiar strain, in every possible direction, to which chairs are constantly subjected causes them to become' loose and fall to pieces. Joints which might be perfectly secure in any other article of manufacture fail to be efficient when applied to chairs, and the great desideratum has been some means of securing the joints of chairs against loosening and parting Linder the peculiar strain to which they are subjected. The object ot' my invention is the production of a chair which can stand without injury all the strain the wood itself will bear, and this I have fully accomplished.
I am fully aware that it has been customary to lirst insert a wedge into the end of a dowel or pin before driving the saine into a straight hole or space with its sides parallel, for the purpose of better securing the parts in posi-l tion; and I am also aware that this has been done when the mortise or socket has been uniformly enlarged at the bottom, so as to act on the principle of the dovetail, as shown in the patent to iVm. Bennett, June 29,1858; but this is not my invention.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A socket-and-tenon joint, substantially as described, for the manufacture of chairs and other articles, the socket being formed with two of its sides parallel, but widening in a transverse direction, so as to form an oval at its bottom, for the purpose set forth.
BENJAMIN F. ALLEN.
Witnesses ALBERT OUsHMAN, GHAs. W. BLACK.
Publications (1)
Publication Number | Publication Date |
---|---|
US162001A true US162001A (en) | 1875-04-13 |
Family
ID=2231410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US162001D Expired - Lifetime US162001A (en) | Improvement in chairs |
Country Status (1)
Country | Link |
---|---|
US (1) | US162001A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5664900A (en) * | 1992-05-28 | 1997-09-09 | Matthies; Klaus E. | Dowel joint system for connecting elements of a solid material |
-
0
- US US162001D patent/US162001A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5664900A (en) * | 1992-05-28 | 1997-09-09 | Matthies; Klaus E. | Dowel joint system for connecting elements of a solid material |
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