US1085691A - Sprag. - Google Patents

Sprag. Download PDF

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Publication number
US1085691A
US1085691A US70646012A US1912706460A US1085691A US 1085691 A US1085691 A US 1085691A US 70646012 A US70646012 A US 70646012A US 1912706460 A US1912706460 A US 1912706460A US 1085691 A US1085691 A US 1085691A
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United States
Prior art keywords
column
socket
sprag
secured
collar
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
Application number
US70646012A
Inventor
John H Lavers
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Individual
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Individual
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Publication date
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Priority to US70646012A priority Critical patent/US1085691A/en
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Publication of US1085691A publication Critical patent/US1085691A/en
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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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/20—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members
    • 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

Definitions

  • This invention relates to columns used in mines, drifts and other similar places in connection with rock drills;.and it consists in the novel construction and combination of the parts hereinafter ⁇ fully described and claimed.
  • Figure 1 is a front view of a column ⁇ constructed according to this invention, and showing its lower, part partially in section.
  • Fig. 2 is a plan view of the jack. l
  • the main portion of the column consists of a tubular metallic column having a reinforcing band or collar 3 secured in its lower ⁇ end portion, ⁇ by shrinking or otherwise.
  • a cap 5 is secured to the top of the column for engaging with the roof.
  • a one piece jack is provided, and thisjack has a socket 7 at its middle part.
  • Thissocket has a shoulder 8 at its bottom, for the bottom-of thecolumn 2 and the collar 3 to rest on, ⁇ and it has a lug 9 which engages with the notch 4 so that the column cannotrevolve in the socket.
  • the end portions of the jack have tapering sockets 10 in which screwthreaded sleeves or nuts 11 are secured. Adjusting screws 12 are provided,
  • the screws 12 have hemispherical ends 16 which rest in shoes 17 whichhave sockets shaped to re-y ceive them.
  • the shoes ⁇ 17 rest on the iioor or ground, ⁇ and adapt themselves to slight irregularities of surface.
  • the screws are tightened up until the column is secured in place.
  • An arm 2O for supporting a rockdrill is clamped to the column 2, and this arm rests upon a collar 21 which is also clamped on the column.
  • the collar can be set at any desired height above the ground, and the supporting arm can be turned around from time to time to suit the drill, and can be held securely in various positions as the column is prevented from revolving by the lug in its socket.
  • the combination with a base having a cylindrical socket, of a tubular column the lower end portion of which engages slidably with the said socket, a reinforcing band permanent-ly secured to the column inside its bottom end portion and resting with it on the bottom ofthe socket, said parts being provided with means which normally prevent the column from revolving inthe socket, and a removable retaining pin passing crosswise through holes in the column and socket.

Description

J. H. LAVERS.
1 SPRAG. APPLICATION FILED JUNE 28,1912.
1,085,691 Patented Feb.3,1914.
FIL-JJ..
Flg
lumai/HO@ wbb/Leases' /w' @M j/W/M/Lm Joann. Levens, or KEARSARGE, MICHIGAN.
srnne.
Specication of Letters Patent.
Patented Feb. 3, 1914.
Application filed June 28', 1912. Serial No. 706,460. i
To all who-mit may concern: p
Be it known'that I, JOHN H. LAvEns, a citizen of the United States, vresiding at Kearsarge, in the countyjofHoughton and State of Michigan, have invented certain new `and useful Improvements in Sprags; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhichvit appertains to `make anduse the same.
This invention relates to columns used in mines, drifts and other similar places in connection with rock drills;.and it consists in the novel construction and combination of the parts hereinafter `fully described and claimed. y v
In the drawings, Figure 1 is a front view ofa column` constructed according to this invention, and showing its lower, part partially in section. Fig. 2 is a plan view of the jack. l
The main portion of the column consists of a tubular metallic column having a reinforcing band or collar 3 secured in its lower `end portion,`by shrinking or otherwise. The
column 2 and its band 3 have a notch 4 at their lower ends. A cap 5 is secured to the top of the column for engaging with the roof.' A one piece jack is provided, and thisjack has a socket 7 at its middle part. Thissocket has a shoulder 8 at its bottom, for the bottom-of thecolumn 2 and the collar 3 to rest on, `and it has a lug 9 which engages with the notch 4 so that the column cannotrevolve in the socket. The end portions of the jack have tapering sockets 10 in which screwthreaded sleeves or nuts 11 are secured. Adjusting screws 12 are provided,
and work in the nuts 11. Holes are provided in the socket 7 and in the column, and a pin 14 is slipped into these holes so that the column and thejack can be moved about without becoming separated. The screws 12 have hemispherical ends 16 which rest in shoes 17 whichhave sockets shaped to re-y ceive them. The shoes` 17 rest on the iioor or ground,` and adapt themselves to slight irregularities of surface. The screws are tightened up until the column is secured in place. An arm 2O for supporting a rockdrill is clamped to the column 2, and this arm rests upon a collar 21 which is also clamped on the column. The collar can be set at any desired height above the ground, and the supporting arm can be turned around from time to time to suit the drill, and can be held securely in various positions as the column is prevented from revolving by the lug in its socket.
What I claim is:
In a sprag, the combination, with a base having a cylindrical socket, of a tubular column the lower end portion of which engages slidably with the said socket, a reinforcing band permanent-ly secured to the column inside its bottom end portion and resting with it on the bottom ofthe socket, said parts being provided with means which normally prevent the column from revolving inthe socket, and a removable retaining pin passing crosswise through holes in the column and socket.
In testimony whereof l have afiixed my signature in the presence of two witnesses.
JOHN H. LAVERS.
Witnesses:
WM. J. DANIELL, A. G. GULLBERG.
US70646012A 1912-06-28 1912-06-28 Sprag. Expired - Lifetime US1085691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US70646012A US1085691A (en) 1912-06-28 1912-06-28 Sprag.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70646012A US1085691A (en) 1912-06-28 1912-06-28 Sprag.

Publications (1)

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US1085691A true US1085691A (en) 1914-02-03

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US70646012A Expired - Lifetime US1085691A (en) 1912-06-28 1912-06-28 Sprag.

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550674A (en) * 1944-04-21 1951-05-01 Joy Mfg Co Supporting column
US2662786A (en) * 1949-12-23 1953-12-15 Deere Mfg Co Wheel and shaft mounting for vehicles
US2778454A (en) * 1950-02-14 1957-01-22 Wheeldex Mfg Co Inc Portable rotary file
US10300314B2 (en) * 2015-05-06 2019-05-28 Aztrum Consulting & Holdings Inc Safety anchor assembly of fall-protection lifeline system for workers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550674A (en) * 1944-04-21 1951-05-01 Joy Mfg Co Supporting column
US2662786A (en) * 1949-12-23 1953-12-15 Deere Mfg Co Wheel and shaft mounting for vehicles
US2778454A (en) * 1950-02-14 1957-01-22 Wheeldex Mfg Co Inc Portable rotary file
US10300314B2 (en) * 2015-05-06 2019-05-28 Aztrum Consulting & Holdings Inc Safety anchor assembly of fall-protection lifeline system for workers

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