US303864A - knapp - Google Patents
knapp Download PDFInfo
- Publication number
- US303864A US303864A US303864DA US303864A US 303864 A US303864 A US 303864A US 303864D A US303864D A US 303864DA US 303864 A US303864 A US 303864A
- Authority
- US
- United States
- Prior art keywords
- tube
- chain
- bar
- primary
- main
- 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
- 239000011324 bead Substances 0.000 description 10
- 241001280173 Crassula muscosa Species 0.000 description 8
- 235000010585 Ammi visnaga Nutrition 0.000 description 6
- 240000005093 Ammi visnaga Species 0.000 description 6
- 210000003414 Extremities Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
Definitions
- This invention relates to that class of watchchain charms in which a' hollow chain -bar con tains an extensible pencil.
- FIG. 1 represents a side elevation of the complete article.
- Fig. 2 is a similar view of the same when the secondary tube is drawn out.
- Fig. 3 is a similar view when both the secondary and the primary tubes are drawn out.
- Fig. 4 is a longitudinal section of the complete article on an enlarged scale.
- the letter A designates a watch-chain bar, which is made in the form of a tube, closed at one end by a head, a, and open at the opposite end.
- B is the primary tube, which contains in one end a tooth-pick, pencil, button-hook, or other article, and which is provided near its opposite end with an inwardly projecting head, I).
- This primary tube fits the interior of the chain-bar snugly, so that it can only be withdrawn by applying a certain amount of power, and that it is not liable to drop out spontaneously.
- G is the secondary or extension tube, which fits the interior of the primary tube, and which is provided at its inner end with a lateraliy-projeeting flange, c, havingiits outer edge in frictional contact with the interior surface of the tubular chain-bar, and at its outer end said secondary tube is provided with a head similar in appearance to the head a of the chain-bar.
- the primary tube B remains stationary, since the secondary tube, being in contact with the interior of the primary tube only at two places, moves therein with comparative case, while it requires much more power to move the pri mary tube in the chain-bar.
- the sec- OHdELIY tube has reached the position shown in Fig. 2, the power is increased and the primary tube is finally drawn out of the chainbar, as shown in Fig. 3.
- the two tubes B and C form a handle of convenient length for operating the tooth-pick or other article contained in the primary tube.
- the tooth-pick end of the primary tube is placed into the chainbar, and by pressing against the head (I the secondary tube C is first forced home, and then the primary tube B is forced into the chainbar.
- a watch-chain bar has been provided with an extensible pencil composed of an outer main tube to closely iit the inside of the bar, and carrying the penciLpoint, and an inner secondary tube, so that in withdrawing the pencil it is automatically extended.
- My invention di'l'l'ers therefrom in that my main or primary tube is provided at its outer end with an inwardly-projecting bead or rim to bear in frictional contact with the exteriorv surface of the secondary tube, and the latter tube is of a length less than the main or primary tube, and is provided at its inner extremity with an outwardly-projecting lateral flange having its edge in frictional contact with the interior surface of the main or primary tube.
- This novel construction preserves the tubes from contact at all points between the flange and the bead or rim, and therefore while the friction between the chain-bar and main tube is greater than between the main and secondary tubes, the said inner tube is held steady in its longitudinal movements, and prevented from lateral movement with respect to the main tube.
- a watch-chain charm consisting of the tubular chain-bar, the main sliding tube in frictional contact with the bar, and having an in wardly-projecting bead or rim at its outer ex- In testimony whereof I have hereunto set my tremity, and the secondary sliding tube bearhand and seal in the presence of two subscribing against the bead or rim, and having at its ing witnesses.
- inner extremity a laterally projecting flange JOHN H. KNAPP. [L. s.] 5 the edge of which is in frictional contact with lvitnessesz XV. HAUFF, a E. F. KASTENHUBER.
Description
(No Model.)
J. H.'KNAPP.
- WATCH CHAIN CHARM.
No. 303,864. Patented Aug. 19,1884
WITNESSES INVENTOR @Z") 3016.? H fiiwmfl 3/454 a a BY ATTORNEYS Uwrrnn STATES PATENT Fl ihh JOHN H. KNAPP, OF NEW YORK, N. Y.
WATCH-CHAIN CHARM.
QPBCIPICATION forming part of Letters Patent No. 303,864, dated August 19, 1884.
Application filed May 29, 1884. (N0 model.)
To (LZZ whom it may concern.-
Be it known that I, JOHN H. KNAPP, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Natch- Chain Charms, of which the following is aspecification.
This invention relates to that class of watchchain charms in which a' hollow chain -bar con tains an extensible pencil.
My invention consists in the novel construction and combination of devices hereinafter described in detail, and specially set forth in the claim, reference being had to the accompanying drawings, in which- Figure 1 represents a side elevation of the complete article. Fig. 2 is a similar view of the same when the secondary tube is drawn out. Fig. 3 is a similar view when both the secondary and the primary tubes are drawn out. Fig. 4 is a longitudinal section of the complete article on an enlarged scale.
Similar letters indicate corresponding parts.
In the drawings, the letter A designates a watch-chain bar, which is made in the form of a tube, closed at one end by a head, a, and open at the opposite end.
B is the primary tube, which contains in one end a tooth-pick, pencil, button-hook, or other article, and which is provided near its opposite end with an inwardly projecting head, I). This primary tube fits the interior of the chain-bar snugly, so that it can only be withdrawn by applying a certain amount of power, and that it is not liable to drop out spontaneously.
G is the secondary or extension tube, which fits the interior of the primary tube, and which is provided at its inner end with a lateraliy-projeeting flange, c, havingiits outer edge in frictional contact with the interior surface of the tubular chain-bar, and at its outer end said secondary tube is provided with a head similar in appearance to the head a of the chain-bar. By taking hold of the head d with one and of the head a with the other hand, the secondary tube can be drawn out to the position shown in Fig. 2, whereby the flange 0 is brought up against the bead 1). During this motion of the secondary tube the primary tube B remains stationary, since the secondary tube, being in contact with the interior of the primary tube only at two places, moves therein with comparative case, while it requires much more power to move the pri mary tube in the chain-bar. After the sec- OHdELIY tube has reached the position shown in Fig. 2, the power is increased and the primary tube is finally drawn out of the chainbar, as shown in Fig. 3. In this condition the two tubes B and C form a handle of convenient length for operating the tooth-pick or other article contained in the primary tube.
In order to restore the article to the condition shown in Figs. 1 and 4, the tooth-pick end of the primary tube is placed into the chainbar, and by pressing against the head (I the secondary tube C is first forced home, and then the primary tube B is forced into the chainbar.
Heretoforc a watch-chain barhas been provided with an extensible pencil composed of an outer main tube to closely iit the inside of the bar, and carrying the penciLpoint, and an inner secondary tube, so that in withdrawing the pencil it is automatically extended. My invention di'l'l'ers therefrom in that my main or primary tube is provided at its outer end with an inwardly-projecting bead or rim to bear in frictional contact with the exteriorv surface of the secondary tube, and the latter tube is of a length less than the main or primary tube, and is provided at its inner extremity with an outwardly-projecting lateral flange having its edge in frictional contact with the interior surface of the main or primary tube. This novel construction preserves the tubes from contact at all points between the flange and the bead or rim, and therefore while the friction between the chain-bar and main tube is greater than between the main and secondary tubes, the said inner tube is held steady in its longitudinal movements, and prevented from lateral movement with respect to the main tube.
\Vhat I claim as new, and desire to secure by Letters Patent, is
A watch-chain charm consisting of the tubular chain-bar, the main sliding tube in frictional contact with the bar, and having an in wardly-projecting bead or rim at its outer ex- In testimony whereof I have hereunto set my tremity, and the secondary sliding tube bearhand and seal in the presence of two subscribing against the bead or rim, and having at its ing witnesses. inner extremity a laterally projecting flange JOHN H. KNAPP. [L. s.] 5 the edge of which is in frictional contact with lvitnessesz XV. HAUFF, a E. F. KASTENHUBER.
the main tube, substantially as and for the pur- I pose described. I
Publications (1)
Publication Number | Publication Date |
---|---|
US303864A true US303864A (en) | 1884-08-19 |
Family
ID=2373035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US303864D Expired - Lifetime US303864A (en) | knapp |
Country Status (1)
Country | Link |
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US (1) | US303864A (en) |
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0
- US US303864D patent/US303864A/en not_active Expired - Lifetime
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