US68381A - Improvement in wood-screws - Google Patents
Improvement in wood-screws Download PDFInfo
- Publication number
- US68381A US68381A US68381DA US68381A US 68381 A US68381 A US 68381A US 68381D A US68381D A US 68381DA US 68381 A US68381 A US 68381A
- Authority
- US
- United States
- Prior art keywords
- screw
- screws
- wood
- head
- improvement
- 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
- 230000000153 supplemental effect Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
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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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/919—Screw having driving contacts
Definitions
- Figure 3 is a longitudinal section showing a modification of another feature.
- Figure 4 is a detached view of a portion of the same.
- Figure 5 is a partial longitudinal section showing another feature/of the invention.
- Figure 6 is a detached view of a portion of the same.
- FIGs 7 and 8 are detached views of screw-drivers employed in driving or turning screws constructed according to my invention.
- This invention consists in the combination of nails or locking-brads with the screw as'thus constructed, whereby the displacement of'the screw when in use is eiectually prevented.
- the invention further consists in the combination of a supplemental head with the aforesaid locking-brads and screw, whereby the' screws may be made to present a very ornamental and tasteful appearance.
- the body of the screw is shown at A, and a represents the head thereof.
- the said head instead of -being formed with a transverse groove in its upper side, as in the ordinary screw, is constructed-with two nicks or notches, a', formed opposite each other in the edges thereof, as shown more clearly in figs. 1 and 2, the said notches being formed either with sloping inner ends, as represented in g. 1, or being of rectangular form, as
- the screw-driver employed in the former case is shown in iig. 7, and that used in the latter instance in fig. 8, and inasmuch as the downwardly projecting spurs of the said -drivers are so formed as to t snugly in the nicks ⁇ or notches a of the screw-heads turning the screws, it follows that the screws may be turned around with much less liability of the driver slipping therefrom, or tearing or breaking the head thereof, than has been the case with the common wood-screw.
- the upper end b of which may be so formed as to correspond inv shape with the nicks or notches a ⁇ of the screw, ⁇ as 4shown in iig. 4, is driven downward through each of the said notches, as represented in iigs. 3 andV 5, andv the said brads being thus forced into the wood, one upon each side of the screw, effectually lock the same from turning around and becoming displaced.
- the said lockingbrads should be formed upon a supplemental head, c, as shown in figs.
- the said brads being driven through the notches a of the screw-head a, in substantially the same manner as hereinbefore described, and serving not only to prevent the screw from turning, but also to securely attach or atiix the ornamental head c upon or over the said screwhead, so as to give a tasteful and decorative appearance to the top of the screw when used.
- the supplemental head c in combination with the locking-brads 6 and the notched head of the screw, substantially as and for the purpose herein set forth.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finger-Pressure Massage (AREA)
- Adornments (AREA)
Description
@uiten tetes @anni ffig,
RICHARD J. NUNN, or SAVANNAH, GEORGIA, Letters Patent No. 68,3-81, lated September 3, 1867.
IMPROVEMENT IN WOOD-SCREWS.
TO ALLl WHOM IT MAY CONCERN:
Be it known that I, RICHARD J. NUNN, of Savannah, in the county of Chatham, and Statevf Georgia, have invented certain new and useful Improvements in Wood-Screws; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a portion of this specification, in which- Figures 1 and 2 are plan views, showing modified forms of one feature of my invention.
, Figure 3 is a longitudinal section showing a modification of another feature.
Figure 4 is a detached view of a portion of the same.
Figure 5 is a partial longitudinal section showing another feature/of the invention.
Figure 6 is a detached view of a portion of the same.
Figures 7 and 8 are detached views of screw-drivers employed in driving or turning screws constructed according to my invention.
Similar letters of reference indicatecorresponding parts in all the gures.
This invention consists in the combination of nails or locking-brads with the screw as'thus constructed, whereby the displacement of'the screw when in use is eiectually prevented. The invention further consists in the combination of a supplemental head with the aforesaid locking-brads and screw, whereby the' screws may be made to present a very ornamental and tasteful appearance.
To enable others to understand the nature and construction of my invention, I will proceed to describe it with reference to the drawings. Y
The body of the screw is shown at A, and a represents the head thereof. The said head, instead of -being formed with a transverse groove in its upper side, as in the ordinary screw, is constructed-with two nicks or notches, a', formed opposite each other in the edges thereof, as shown more clearly in figs. 1 and 2, the said notches being formed either with sloping inner ends, as represented in g. 1, or being of rectangular form, as
indicated in iig. 2. The screw-driver employed in the former case is shown in iig. 7, and that used in the latter instance in fig. 8, and inasmuch as the downwardly projecting spurs of the said -drivers are so formed as to t snugly in the nicks `or notches a of the screw-heads turning the screws, it follows that the screws may be turned around with much less liability of the driver slipping therefrom, or tearing or breaking the head thereof, than has been the case with the common wood-screw. In order to prevent the screw from turning when the same has been forced into the wood a nail or brad, I), the upper end b of which may be so formed as to correspond inv shape with the nicks or notches a `of the screw,`as 4shown in iig. 4, is driven downward through each of the said notches, as represented in iigs. 3 andV 5, andv the said brads being thus forced into the wood, one upon each side of the screw, effectually lock the same from turning around and becoming displaced. Instead of being made separately or disconnected from cach other, as shown in figs. 3 and 4, it is preferred in many cases that the said lockingbrads should be formed upon a supplemental head, c, as shown in figs. 5 and 6, andwhich may be of any desired ornamental or other configuration, the said brads being driven through the notches a of the screw-head a, in substantially the same manner as hereinbefore described, and serving not only to prevent the screw from turning, but also to securely attach or atiix the ornamental head c upon or over the said screwhead, so as to give a tasteful and decorative appearance to the top of the screw when used.
i What I claim as my invention, and desire to secure by Letters Patent, is-
1. The nails or locking-braids b,in combination with the screw having its head constructed with nicks or notches a', substantially as and for the purpose herein set forth.
' 2. The supplemental head c, in combination with the locking-brads 6 and the notched head of the screw, substantially as and for the purpose herein set forth.
' R. J. NUNN.
Witnesses:
W. SPAIMYEIDERY, WM. D. HARDEN'.
Publications (1)
Publication Number | Publication Date |
---|---|
US68381A true US68381A (en) | 1867-09-03 |
Family
ID=2137904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US68381D Expired - Lifetime US68381A (en) | Improvement in wood-screws |
Country Status (1)
Country | Link |
---|---|
US (1) | US68381A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3091991A (en) * | 1960-06-28 | 1963-06-04 | Meredith H Baker | Railroad spike with expanding locking sleeve |
-
0
- US US68381D patent/US68381A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3091991A (en) * | 1960-06-28 | 1963-06-04 | Meredith H Baker | Railroad spike with expanding locking sleeve |
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