US1576210A - Safety device for high riggers - Google Patents

Safety device for high riggers Download PDF

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Publication number
US1576210A
US1576210A US32416A US3241625A US1576210A US 1576210 A US1576210 A US 1576210A US 32416 A US32416 A US 32416A US 3241625 A US3241625 A US 3241625A US 1576210 A US1576210 A US 1576210A
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Prior art keywords
clamp
line
riggers
safety
lever
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Expired - Lifetime
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US32416A
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Nickson Nicholas
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3936—Pivoted part
    • Y10T24/394—Cam lever
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3936—Pivoted part
    • Y10T24/394—Cam lever
    • Y10T24/3944—Cam engaging or disengaging

Definitions

  • My invention relates'to improvements in safety devices for high riggers, the objects of which are to provide means whereby a high rigger in a logging camp or the like, may be safeguarded against falling from a spar pole in the event of a breakage of ordamage to the hoisting line upon which he is supported when working above the ground. 7
  • the invention consists essentially of a safety line permanently secured adjacent the head of the spar tree and a running clamp thereon which is adapted to be fastened to the riggers body by suitable means and which grips the safety linein the event of a downward pull being exerted upon it, as will be more fully described in the following specification, in which Fig. 1 is a general view showing the application of my invention.
  • Fig. 2 is a sectional view of the clamp upon the safety line.
  • the numeral 1 indicates a spar pole from which a high lead or other line 2 extends and which is suitably provided with a guy line 3.
  • the numeral 4 indicates a winding gear having a plurality of hauling drums 5 and alight line drum 6 by which the high rigger is hoisted and lowered to or from his work of adjusting or altering any of the head blocks 7 or other gear upon the pole.
  • the numeral 8 indicates a hoisting line leading from the drum 6 of the winding gear, over a sheave 9 at the head of the pole and down to a chasers seat 10 upon which the high rigger is carried.
  • a safety line 11 is secured which extends to the ground and is preferably weighted as at 12 to keep it taut, or it may be held by hand until the rigger is raised to an appreciable height and sufiicient weight of line extends below the clamp to serve to hold the upper portion of the line straight.
  • the high rigger is suitably equipped with a belt 13 to which one end of a short line 14 is attached.
  • the numeral 15 indicates generally a clamp (see Fig. 2) which is formed with a channel member having side walls 16 and a back or connecting wall 17. The ends of the clamp are provided with eyes as at 18 which are adapted to loosely embrace the safety line 11 to maintain the clamp in proper position thereon.
  • the numeral 19 indicates a lever fulcrumed upon a pin 20 extending between the side walls 16, which lever is provided with a serrated faced cam .21 adjacent the pin and an eye 22 at its outer end.
  • the earn 21 of the lever 19 is adapted to bear against the safety rope 11 and to grip it against the connecting wall 17 of the clamp on the downward movement of the lever, and a spring 23 is attached between the cam and the clamp side walls to keep the clamp 1n slight bearing contact with the rope so that-it may slip along the cable with but little resistance when being drawn in an upward direction.
  • the high rigger prior to being hauled up the spar pole connects the line 14 of his belt 13 to the outer end of the lever 19 of the clamp so that as he is raised the clamp is drawn upwardly upon the safety line 11.
  • the downward movement of the high rigger is imparted to the lever 19 through the line 14 causing the cam to grip the safety line and transfer the weight of the man from the hoisting line 8 to the safety line 11.
  • the clamp 15 On descending from the spar pole the clamp 15 is tightly held above the belt, with the lever slightly depressed so that the rope 11 may run freely through the clamp, when in the event of a fall occurring the clamp is snatched out of the riggers hand by his weight so that it is free to operate and grip upon the safety line.
  • a safety device of the character described comprising a Ushaped clamp member a lever having one end pivotally mounted between the sides of said member and formed to present a cam surface cooperating with an opposing portion of the member to clamp an interposed rope passing between the :sides of .said melixrber.v a spring secured atone end to said member and at the opposite end to the cam portion of the lever and arranged to normally hold the lever out of gripping engagement With the rope, a body encirclingbelt amd @a connecting element having one extremity secured to said belt and the other extremity secured to an eye formed in the miter end of the lever.

Description

March 9,1926. 1,576,210
N. NICKSON SAFETY DEVICE FOR HIGH RIGGERS Filed May 23, 1925 IN VENT R ,V c o s NICKSON ATTORNEYi Patented Mar. 9, 1926.
uNlrsox srarss anna SAFETY nnvrcn ron rrrerr nitssEnsi" Application filed May 23, 1925. Serial No. 3 2,416.
To all whom it may concern Be it known that I, NICHOLAS NIGKSON, a citizen of Russia, and a resident of the city of Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Safety Devices for High Riggers, of which the following is a specification.
My invention relates'to improvements in safety devices for high riggers, the objects of which are to provide means whereby a high rigger in a logging camp or the like, may be safeguarded against falling from a spar pole in the event of a breakage of ordamage to the hoisting line upon which he is supported when working above the ground. 7
The invention consists essentially of a safety line permanently secured adjacent the head of the spar tree and a running clamp thereon which is adapted to be fastened to the riggers body by suitable means and which grips the safety linein the event of a downward pull being exerted upon it, as will be more fully described in the following specification, in which Fig. 1 is a general view showing the application of my invention.
Fig. 2 is a sectional view of the clamp upon the safety line.
In the drawings like characters of refer ence indicate corresponding parts in each figure.
The numeral 1 indicates a spar pole from which a high lead or other line 2 extends and which is suitably provided with a guy line 3.
The numeral 4 indicates a winding gear having a plurality of hauling drums 5 and alight line drum 6 by which the high rigger is hoisted and lowered to or from his work of adjusting or altering any of the head blocks 7 or other gear upon the pole. The numeral 8 indicates a hoisting line leading from the drum 6 of the winding gear, over a sheave 9 at the head of the pole and down to a chasers seat 10 upon which the high rigger is carried. Suitably secured adjacent the top of the spar pole 1 a safety line 11 is secured which extends to the ground and is preferably weighted as at 12 to keep it taut, or it may be held by hand until the rigger is raised to an appreciable height and sufiicient weight of line extends below the clamp to serve to hold the upper portion of the line straight. The high rigger is suitably equipped with a belt 13 to which one end of a short line 14 is attached.
The numeral 15 indicates generally a clamp (see Fig. 2) which is formed with a channel member having side walls 16 and a back or connecting wall 17. The ends of the clamp are provided with eyes as at 18 which are adapted to loosely embrace the safety line 11 to maintain the clamp in proper position thereon.
The numeral 19 indicates a lever fulcrumed upon a pin 20 extending between the side walls 16, which lever is provided with a serrated faced cam .21 adjacent the pin and an eye 22 at its outer end. The earn 21 of the lever 19 is adapted to bear against the safety rope 11 and to grip it against the connecting wall 17 of the clamp on the downward movement of the lever, and a spring 23 is attached between the cam and the clamp side walls to keep the clamp 1n slight bearing contact with the rope so that-it may slip along the cable with but little resistance when being drawn in an upward direction.
Having thus described the several parts of my invention I will now briefly explain its use.
The high rigger prior to being hauled up the spar pole connects the line 14 of his belt 13 to the outer end of the lever 19 of the clamp so that as he is raised the clamp is drawn upwardly upon the safety line 11. In the event of an accident occurring to any part of the hoisting gear the downward movement of the high rigger is imparted to the lever 19 through the line 14 causing the cam to grip the safety line and transfer the weight of the man from the hoisting line 8 to the safety line 11. p
On descending from the spar pole the clamp 15 is tightly held above the belt, with the lever slightly depressed so that the rope 11 may run freely through the clamp, when in the event of a fall occurring the clamp is snatched out of the riggers hand by his weight so that it is free to operate and grip upon the safety line.
What I claim as my invention is:
A safety device of the character described comprising a Ushaped clamp member a lever having one end pivotally mounted between the sides of said member and formed to present a cam surface cooperating with an opposing portion of the member to clamp an interposed rope passing between the :sides of .said melixrber.v a spring secured atone end to said member and at the opposite end to the cam portion of the lever and arranged to normally hold the lever out of gripping engagement With the rope, a body encirclingbelt amd @a connecting element having one extremity secured to said belt and the other extremity secured to an eye formed in the miter end of the lever. I
Dated at Vancouver, B. 0., this l6thday of April, 1925. T
NICHOLAS NIGKSON.
US32416A 1925-05-23 1925-05-23 Safety device for high riggers Expired - Lifetime US1576210A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458943A (en) * 1947-09-10 1949-01-11 Isaac D Houseman Safety attachment
US2945563A (en) * 1958-05-14 1960-07-19 John J O'hara Safety locks for harness
US3006431A (en) * 1958-08-04 1961-10-31 Roy E Meyer Apparatus connecting the safety belt with the safety appliance
US3177543A (en) * 1962-11-14 1965-04-13 Cecil D Fountain Safety locking device
US3317971A (en) * 1965-02-23 1967-05-09 Roy E Meyer Rope safety clamp device
US3348632A (en) * 1965-02-16 1967-10-24 William E Swager Climbing device
US3422839A (en) * 1966-10-31 1969-01-21 Potter Roemer Inc Firehose clamp
US3674116A (en) * 1969-10-09 1972-07-04 Lebag Leitungs Und Elektrobau Fall-prevention safety device
US4512438A (en) * 1984-01-30 1985-04-23 Vilchek Andrew Escape apparatus
US4595174A (en) * 1983-10-24 1986-06-17 International Dodge, Inc. Horizontal line grip device
US20060102421A1 (en) * 2003-09-12 2006-05-18 Dionne Jeffrey S Circular chambered rope grab
US20090025616A1 (en) * 2007-07-23 2009-01-29 Amsafe, Inc. Air cargo pallets having synthetic cores and associated systems and methods for manufacturing same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458943A (en) * 1947-09-10 1949-01-11 Isaac D Houseman Safety attachment
US2945563A (en) * 1958-05-14 1960-07-19 John J O'hara Safety locks for harness
US3006431A (en) * 1958-08-04 1961-10-31 Roy E Meyer Apparatus connecting the safety belt with the safety appliance
US3177543A (en) * 1962-11-14 1965-04-13 Cecil D Fountain Safety locking device
US3348632A (en) * 1965-02-16 1967-10-24 William E Swager Climbing device
US3317971A (en) * 1965-02-23 1967-05-09 Roy E Meyer Rope safety clamp device
US3422839A (en) * 1966-10-31 1969-01-21 Potter Roemer Inc Firehose clamp
US3674116A (en) * 1969-10-09 1972-07-04 Lebag Leitungs Und Elektrobau Fall-prevention safety device
US4595174A (en) * 1983-10-24 1986-06-17 International Dodge, Inc. Horizontal line grip device
US4512438A (en) * 1984-01-30 1985-04-23 Vilchek Andrew Escape apparatus
US20060102421A1 (en) * 2003-09-12 2006-05-18 Dionne Jeffrey S Circular chambered rope grab
US20090025616A1 (en) * 2007-07-23 2009-01-29 Amsafe, Inc. Air cargo pallets having synthetic cores and associated systems and methods for manufacturing same

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