US821952A - Lewis-bolt. - Google Patents

Lewis-bolt. Download PDF

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Publication number
US821952A
US821952A US26202005A US1905262020A US821952A US 821952 A US821952 A US 821952A US 26202005 A US26202005 A US 26202005A US 1905262020 A US1905262020 A US 1905262020A US 821952 A US821952 A US 821952A
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Prior art keywords
key
lewis
bolt
pin
murphy
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US26202005A
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John P Murphy
Napoleon W Rancourt
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures

Definitions

  • Our invention relates to a lewis-bolt of the ordinary type in which two inverted-wedgeshaped sections are used with a key inserted between them adapted to hold them apart.
  • Such bolts are used in holes made larger at the bottom than at the top to prevent the As these. bolts are now made the parts are all separated, and in placing them in position and connecting on the shackle much time and much trouble are required.
  • the object of our invention is to construct sucha lewis-bolt so that the parts will be held together in such a position that they are always ready to be inserted and quickly adjusted.
  • a a are the two inverted-wedge-shaped members, having eyes at their upper ends, through which pass the pin 12.
  • This pin is provided with a central opening, through which passes the wedge-shaped key d for separatin the sections a.
  • Means are provided for holding the key in position, and for this purpose we form in it a longitudinal slot (1, extending a portion of the way through the key and terminating back from the ends, so that the slot is closed at its ends.
  • the upper end of the key d is of course wider than the lower end, and when a wider spread is desired in the members a the key is drawn up and reversed, the pin 1) revolving in the eyes.
  • the shackle c is secured on the outer ends of the pin 1) and completes the device, which forms a self-contained lewis-bolt always ready for use and easily and quickly adjusted for either wide or narrow holes.
  • lewis-bolt consisting of a pair of inverted-wedge-shaped members each having an eye at the upper end, a pin passing through said eyes, said pin having a central opening therethrough, a wedgeshaped key passing through said opening and having a longitudinal slot therein, terminating back from the ends of the key and a screw in said pin adapted to enter said slot to hold said key in place.
  • lewis-bolt consisting of a pair of inverted-wedge-shaped members each having an eye at its upper end, a pin passing through said eyes, said pin having a central opening therethrough, a wedgeshaped key passing through said opening having a longitudinal slot therein terminating back from the ends of the key, a screw in said pin adapted to enter said slot to hold said key in place and a shackle secured by said pin.

Description

No 821,952. PATENTED MAY 29, 1906. J. P. MURPHY & N. W. RANGOURT.
LEWIS BOLT.
APPLICATION FILED MAY 24, 1905.
' withdrawal of the bolt.
UNITED STATES PATENT OFFICE.
JOHN P. MURPHY, OF PORTLAND, AND NAPOLEON W. RANOOURT, OF
LEWISTON, MAINE.
LEWIS-BOLT.
Specification of Letters Patent.
Patented May 29, 1906.
Application filed May 2 ,1905 Serial No. 262,020.
To all whom it may concern:
Be it known that we, JOHN P. MURPHY, a resident of Portland, and NAPOLEON W. RAN- COURT, a resident of Lewiston, State of Maine, citizens of the United States of America, have invented certain new and useful Improvements in Lewis-Bolts, of which the following is a specification.
Our invention relates to a lewis-bolt of the ordinary type in which two inverted-wedgeshaped sections are used with a key inserted between them adapted to hold them apart. Such bolts are used in holes made larger at the bottom than at the top to prevent the As these. bolts are now made the parts are all separated, and in placing them in position and connecting on the shackle much time and much trouble are required.
The object of our invention is to construct sucha lewis-bolt so that the parts will be held together in such a position that they are always ready to be inserted and quickly adjusted.
We illustrate our invention by means of the accompanying drawings ,'in which- Figure 1 is a front elevation, and Fig. 2 is a section, on the line 00 9c of Fig. 1.
a a are the two inverted-wedge-shaped members, having eyes at their upper ends, through which pass the pin 12. This pin is provided with a central opening, through which passes the wedge-shaped key d for separatin the sections a. Means are provided for holding the key in position, and for this purpose we form in it a longitudinal slot (1, extending a portion of the way through the key and terminating back from the ends, so that the slot is closed at its ends.
The inner end of the screw e, which passes through the pin 1), enters the slotand holds the key from dropping out when not in use.
The upper end of the key d is of course wider than the lower end, and when a wider spread is desired in the members a the key is drawn up and reversed, the pin 1) revolving in the eyes. The shackle c is secured on the outer ends of the pin 1) and completes the device, which forms a self-contained lewis-bolt always ready for use and easily and quickly adjusted for either wide or narrow holes.
We claim 1. The herein-described lewis-bolt consisting of a pair of inverted-wedge-shaped members each having an eye at the upper end, a pin passing through said eyes, said pin having a central opening therethrough, a wedgeshaped key passing through said opening and having a longitudinal slot therein, terminating back from the ends of the key and a screw in said pin adapted to enter said slot to hold said key in place.
2. The herein-described lewis-bolt consisting of a pair of inverted-wedge-shaped members each having an eye at its upper end, a pin passing through said eyes, said pin having a central opening therethrough, a wedgeshaped key passing through said opening having a longitudinal slot therein terminating back from the ends of the key, a screw in said pin adapted to enter said slot to hold said key in place and a shackle secured by said pin.
JOHN P. MURPHY. NAPOLEON W. RANCOURT.
Witnesses:
JAMES P. MURPHY, ALBERT RANOOURT.
US26202005A 1905-05-24 1905-05-24 Lewis-bolt. Expired - Lifetime US821952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US26202005A US821952A (en) 1905-05-24 1905-05-24 Lewis-bolt.

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US26202005A US821952A (en) 1905-05-24 1905-05-24 Lewis-bolt.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11180348B2 (en) * 2017-08-09 2021-11-23 Illinois Tools Works Inc. Lifting and jacking apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11180348B2 (en) * 2017-08-09 2021-11-23 Illinois Tools Works Inc. Lifting and jacking apparatus

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