Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Heat Accumulators Lifting-loop

 Local area network amplifier for twisted pair lines
An amplifier for amplifying a signal transmitted over a line, where the line attenuates higher ...


 Sequential beam switching of acousto-optic modulator
It is a novel feature of the present invention that simultaneous multiple-beam operation of a laser ...


 Solar energy concentrating and collecting arrangement with sun-follower and solar energy sensing power control and method
I claim: 1. A solar energy concentrating and collecting arrangement, comprising a generally ...


 Flux-cored wire
It is an object of the present invention to provide a flux-cored wire useful for electrogas arc ...


 Multistage rotary switch
Each of the switch wafers includes a case member 1 with a disk-shaped recess for receiving a ...


 Tank type gas circuit breaker
An object of the invention is to provide a tank type gas circuit breaker for a three-phase ...


 Solar air heater
According to the present invention there is provided a solar collector air heater which exhibits a ...


 Infrared space heater
What is claimed is: 1. A space heater comprising a base providing a plenum chamber for fresh air, a ...


 Metallized glass-ceramic cooking vessels exhibiting extended service life
Glass-ceramic cooking vessels which can be used to provide aluminum-coated vessels with long ...


 Transparent carrier sheet carrying transferable indicia and reference transferable guide marks and method of utilizing the same for sign-making
I claim: 1. In a transparent carrier sheet carrying a plurality of rows of underlaid indicia ...


 Lifting loop

Details
Inventors: Lindahl, Bengt E.;
Assignee: Svensk Lasthantering, Bengt Lindahl AB (Torslanda, SE)
Primary Examiner: Hunter; H. Hampton
Assistant Examiner:
Attorney, Agent or Firm: Harness, Dickey & Pierce

A lifting loop comprising a core of parallel threads enclosed in a protecting covering which is formed by a woven ribbon that is stitched together at its edges whereby a side seam extending in the longitudinal direction of the loop is formed and the covering is made to enclose said core snugly. A second longitudinal seam may be stitched diametrically opposed to the first seam. In a simple manner is thus produced a reliable lifting loop possessing highly satisfactory lifting characteristics and maximum durability and strength.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT Like prior-art designs of lifting loops, the sling in accordance with the subject invention comprises a core 1 of fibres or threads 2, preferably consisting of 100% polyester.
The core 1 is enclosed by a cloth, preferably of the same material and woven as a ribbon.
When enclosed by this ribbon, the fibres or threads are well compressed in accordance with the invention and the selvedges 3,4 of the ribbon are folded and passed beneath the presser foot 5 of a sewing machine, and the selvedges are stitched together whereby a side seam 6 is formed.
The ribbon now forms a hose-like protection covering 7 around the core 1.
The protecting covering 7 could be made to enclose the core snugly by the use of one side seam 6 in accordance with the invention.
In addition, this possibility is improved the thicker the loop that is manufactured.
When producing loops that are less coarse or when one wants to make coarse loops even tighter it is possible, in accordance with a further development of the invention, to form a lengthwise extending lateral fold 8 on the side of the covering 7 that is diametriacally opposed to the seam 6 and stitch a second side seam 9 along this fold.
In both cases the side seam 6 or side seams 6 and 9 of the resulting lifting loop will not snap before the breaking strength of the sling itself is exceeded.
Despite the extreme simplicity of manufacture, the lifting loop in accordance with the invention thus provides maximum reliability.



Related patents
  High efficiency fuser roll assembly for xerographic material
The present invention relates to apparatus for making multiple copies of printed or other matter by xerographic methods, usually on a plain paper carrier medium. The ...
  Backup roll for heated fuser system
OF THE PREFERRED EMBODIMENT As shown in FIG. 1, the fuser system includes a fuser roll couple comprised of a fuser roll 1 and a backup roll 2. As is conventional, the ...
  Roll-fusing apparatus
It is an object of the present invention to equalize the characteristic of contact pressure exerted by the pressure roller on the fusing roller in a fusing apparatus of ...
  Portable heat circulation means
The present invention provides a portable heat circulation device which is particularly adapted to be usable when placed upon the top of a heater such as a kerosene ...
  Interior trim foam product and method of fabrication thereof
OF THE INVENTION The article of the present invention and its method of manufacture will be described with reference to a composite plastic door such as a glove box ...
  Apparatus and method for removing fumes from the space above a cooking appliance in a restaurant
According to the present apparatus and method, substantially uniform supply and exhaust velocities are achieved even in very "wide" (long) apparatus, in a economical and ...
  Food receptacle for microwave ovens
What is claimed is: 1. A microwave oven for cooking food comprising: an oven for heating said food, said oven having first and second oppositely disposed walls; means ...
  Interruptable voltage-controlled oscillator and phase-locked loop using same
OF THE PREFERRED EMBODIMENTS Reference is now made in detail to the present preferred embodiments of the invention which illustrate the best mode presently contemplated ...
  Varying frequency oscillator for the reduction of radiated emissions of electronic equipment
These and other objects of the invention are accomplished by providing a circuit which varies the frequency of the output of an oscillator which supplies system clock ...
  High frequency ECL voltage controlled ring oscillator
OF THE INVENTION As shown in FIG. 4, the present invention provides an ECL gate configuration 100 that allows the bias current applied to the gate 100 to be varied. T...

0.044

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved