US42905A - Improvement in wood-screws - Google Patents

Improvement in wood-screws Download PDF

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US42905A
US42905A US42905DA US42905A US 42905 A US42905 A US 42905A US 42905D A US42905D A US 42905DA US 42905 A US42905 A US 42905A
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wood
screws
improvement
bidwell
thread
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00Screws that cut thread in the body into which they are screwed, e.g. wood screws

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  • JASON BIDWELL OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF, A. CHURCHILL, H. T. LITOHFIELD, AND DANIEL M, ROBERTSON.
  • Figure 1 is an elevation of a screw with my improvements.
  • FIG. 1 A is the stem of the screws ;-B,the head, and 0 the Fig. 2 is a section of Fig. 1.
  • the woodscrew described-to wit, a wood-screw with a stem of uniform size, (except the tapering point,) and made with a-taperin-g point, sharpedged thread, and concave score,-all as above described.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)

Description

J. A. BIDWELL.
WOOD SCREW.
No. 42,905. P atented May 24, 1864.
UNITED STATES PATENT O FICE.
JASON BIDWELL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF, A. CHURCHILL, H. T. LITOHFIELD, AND DANIEL M, ROBERTSON.
IMPROVEMENT IN WOOD-SCREWS.
Specification forming part of Letters Patent No. 42,995, dated May 24, 1864.
To all whom it may concern.- Be it known that I, J ASON A. BiDwELL, of the city of Boston, in the county of Sutfolk andState of Massachusetts, haveinvented certain new and useful Improvements in Vood- Screws; and I do herebydeclarc that the same are described and represented in the following specification and drawings.
To enable others skilled in the art to make and use my improvements, I will proceed to ,.describe their construction and use, referring to the drawings, in which the same letters in-. dicate like parts in each of the figures.
Figure 1 is an elevation of a screw with my improvements.
The nature of my invention and improvements inv woodscrews consists in a \/-shaped or angularedged thread, with a score between the threads with a semicircular-shaped. bottom, also, in combining therewith a tapering or conical point.
In the accompanying drawings, A is the stem of the screws ;-B,the head, and 0 the Fig. 2 is a section of Fig. 1.
are broken by the old fashioned thread with a.
' the wood in such a manner that itwill hold nearly or quite as much as when screwed into the wood at a right angle to the grain of the wood.
I believe I have described and represented my improvements in wood-screws so as to en able any person skilled. in the art to make and use them without further invention or experiment.
I will now state what I desire to secure by Letters Patent, to wit:
As anew article of manufacture, the woodscrew described-to wit, a wood-screw with a stem of uniform size, (except the tapering point,) and made with a-taperin-g point, sharpedged thread, and concave score,-all as above described.
' JASON A. BIDWEIJL. Witnesses:
- ANTHONY MARTIN.
A. W. BOARDMAN.
US42905D Improvement in wood-screws Expired - Lifetime US42905A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD785444S1 (en) * 2014-10-28 2017-05-02 Force One Holdings Kabushiki Kaisya Screw nail
DE102021126035A1 (en) 2021-10-07 2023-04-13 MFI-Metall Fastening Industrie GmbH wood screw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD785444S1 (en) * 2014-10-28 2017-05-02 Force One Holdings Kabushiki Kaisya Screw nail
DE102021126035A1 (en) 2021-10-07 2023-04-13 MFI-Metall Fastening Industrie GmbH wood screw

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