Blakes 7
-
Posts
213 -
Joined
-
Last visited
Content Type
Profiles
Forums
Classifieds
Tip Site Directory
Blogs
Articles
News
Arborist Reviews
Arbtalk Knot Guide
Gallery
Store
Calendar
Freelancers directory
Everything posted by Blakes 7
-
No I,m not. If the section has accelerated, which it has if it is falling it now has converted its potential energy to kinetic being accelerated @9.8m/s/s This increased kinetic energy has to go somewhere which you are trying reduce by the friction device. The friction device turns some of the kinetic energy to heat energy( feel your portawrap next time) If the section is being slowed earlier by rope and not falling, the kinetic energy value will be smaller as it has been decelerating sooner so the forces are lower.
-
Andy you obviously have not read it, THEY did not do it, they published it.
-
Steve the forces that I am talking about come into play all the time, it is just easier to picture in a snatched scenario
-
Skyhuck as you have previously said you can not tell what is happening from a still photograph. Why don't you ask why I was in that position. Also if that is the worst fault that you can find with my work then I'm not doing too much wrong! By the way what is wrong with that position- NOTHING You are disagreeing with me about rigging and I am correct- ask Newton, ISA HSE, AFAG, NPTC etal
-
Steve I'm sorry my post was not supposed to be a slight on skyhucks intelligence, but to show that the training that he rubbishes is built from PROVEN scientific laws.
-
Dean, you are correct, however. If the section has accelerated you are now stopping a greater force. The size of section that we work with it will still be ok. But why increase the forces? When tying the hardware correctly will keep everything to a minimum. It is not hard to do it right - no greater effort! Skyhuck- who mentioned the NPTC? I can appreciate that GCSE physics is beyond you but that is why laws of motion are not taught on CS41. But the safest ways to do the job are. Try reading the rigging research on the HSE web site.
-
SWB I agree the groundie is good and lowers smoothly. Not the point I was getting at.
-
Dean, "letting it run" should be where the section is being slowly decelerated. If it is falling it is accelerating:scared1: A good groundie can not change Newtons laws of motion
-
A foot will roughly double the force. The shock absorption should be in the length of rigging rope
-
If we are going to pick faults in Mikes work, why not mention the use of the incorrect pulley for topping down and the amount of slack it is attached by. I also would have de-limbed while spiking up. Nice vid though:001_cool:
-
Steve, I may be interested in meeting up. What day are you doing the exercises on?
-
Dean I thought polars were white:001_smile:
-
Two pics one of a distant Inonotus hispidus, and the other of superb bark on an oak
-
We had our grab pinched a couple of years ago. Police found out who it was with DNA off the discarded fag butts. Didn't get conviction though- lack of evidence ? Our grab has now got its attachment nut welded on!
-
I'm not saying that you can't get a chain sharp. But if the reason for not using a guide is that they are not accurate enough, how can doing it free hand be more accurate? You don't have any mecanism for keeping to the datum. The chain manufactures have spent time and money to find the correct depth/ angles for the chain to work properly within the system ie the saw used. We all know that chains cut quicker if you file the depth guages down, but you may overload the power unit, and definatley increase vibrations. The published vibration values are for correctly sharpened chains. (CVW Regs)
-
We are having a bit of a discussion at work at the moment about chain tension. We all seem to have been taught different methods for checking that the tension is correct. What were you taught? I will not describe the method I was shown yet so as I don't influence any answers. Any instructors two penneth would be ideal.
-
PS why did you buy one with a hook on? You can buy strops without them attached.
-
Some LOLER inspectors will fail the snap hooks because they only have two distinct movements to open them, and not three. It is a bit of a grey area, but I was advised that they should pass an inspection as they are used for work positioning, but we all rely on our strops only at change overs. A LOLER inspector will not care if you have removed the hook, just as long you have caused no damage to the strop and documented the change in your interim inspection.
-
I guess that since you are calling this saw "one handed", you have not been trained in their use. They are designed to be used with two hands, hence why they have two handles. Training will show you when it is safe to use it with one hand.
-
Testcricket, if we ALL followed the health and safety regs everyone would be pricing with the same costs! So yes we would still make money.
-
The purpose of the HSE? Well we would like to believe that it is there so we all go home each evening in one piece. It is the point of it, however it in reality is to police the HSAW Act. We had the HSAW Act before we joined Europe, but since joining, when the European gov' decides that it wants us to be safer at work, it passes a European law. This is where our gov' gets involved and it is given a Directive from Brussels. Our gov' then makes this a Regulation and attaches it to one of our Acts. Our gov' now has a duty of care in the same way you as an employer has. As they have this duty, they now have to check that we are doing what they say. Hence why self employed are not excempt from legislation. And why the HSE exists. Hope you can follow that.
-
Yes it is best practice. But if the HSE want to prosecute you they will do it as you are breaking a statute law, and this is a criminal case. To complete a criminal prosecution they have the burden of proof. To prove you were doing something wrong they will look to statute laws with associated Regs, and to ACOPs and to industry guidance. The H&S@W Act 1974 requires you to do what is "reasonably practicable" to ensure H&S during your activities. IMO do not rely on advice given on this or other forums, in relation to your obligations. You can all see we have different interpretations of what we have been told. Take time to look at the PPE Regs, LOLER, MHSAW, PUWER, COSHH etc. And in my own words take or leave that advice:001_smile:
-
I can see why you run your business like you do, the main problem for all of us are the un-trained and pikies who take work from us. If this "competition" was removed we would all be better placed to charge for jobs at a rate that could cover all compliance. Average of 10K a year- cheapskate!
-
I did not say I have never done it, but I could count the times on my (uncut) fingers. I was not the one professing to be safety conscious after having cut myself doing something daft.
-
If your so confident Skyhuck, invite the HSE to one of your sites, and then ask them again.
