Today we were fortunate again to meet with one of our closest friends on the way up from the park. We talked over the latest political situation (as we often do) and reinforced each other in the view that the lockdown may be coming two weeks too early and that apart from Leicester, there may well be other communities in the North and the Midlands with a socioeconomic profile not too dissimilar to that of Leicester where subsequent spikes of infection may still occur.  After lunch, I was just getting psychologically prepared to give the lawns their 7-10 day mowing when the heavens opened – not for long, but just long enough to write off any thought of grass-cutting whilst the ground was damp. So I turned my mind to other things such as revising my Waitrose order that is due to arrive first thing on Friday morning. Halfway through the afternoon, I received a delivery from Amazon but it was not what I was expecting. Several days ago, I had espied on ebay a traditional hat-and-coat stand of the traditional bentwood variety that I had been looking out for some time and so I ordered it at what I thought was a reasonable price. I wasn’t sure what kind of packaging it would arrive in but what did arrive was a flat box with a self-assembly kit inside. This is not what I was expecting so I went back to the original advert and there was no mention of ant flat-pack or self-assembly. But I set to work with a vengeance following the pictorial instructions (no words of any description) It was one of these jobbies where the advice was to only screw things up halfway because there was a certain amount of jiggling about to get circular supports in place but all went well before I gave things a final tightening of the screws and then polishing of the whole before deploying it where I needed it in our bathroom. I have a variety of PosiDriv screwdrivers which I deploy on occasions like this as I invariably find that if one tool doesn’t work quite as well as intended then another one will. A final ‘tip’ was that I keep in a bathroom cabinet some especially ‘grippy’ gardening gloves – these I keep in pristine condition and use for things that require a good grip but are normally a bit problematic such as the rounded covers that are used when you fit on new shower hoses and the like. Anyway, this proved ideal for those vertical sections that needed a good twist to lock into position and I must say I am pleased with the results of my efforts.

Still on the subject of screwing together any pieces of timber for any construction works in the garden, I am keen to follow the advice given in my searches on the web to provide a ‘clearance’ hole in the top piece of timber that is being used and will eventually accommodate the smooth i.e. shank part of the screw. I had never thought much about who wood screws contain shanks but here is the explanation:

Having an unthreaded shank at the top allows the tip of a wood screw to pull the screw into the wood just as a regular screw would. The difference is that the shoulder portion of the screw will actually slide through the first layer of wood and pull it against the head. This causes compression from the head to the threads. When installing two pieces of wood together then the first will be pulled tightly against the second one. The threads can continue to pull forward as long as enough torque is applied. Coincidentally, this can also make the removal process much easier than trying to remove a fully threaded screw.

Second, when a fully threaded screw is being screwed into wood the screw threads cause friction. This friction results in the screw heating up. This causes two flaws in the material. As the metal heats up it will begin to expand. Once it expands inside of a hole that was drilled for a specific sized screw, the screw will seize in the hole. At the same time, the materials overall strength has now also been compromised due to the heat. Overheating  leads to a screw breaking and snapping.

These two factors will highlight any flaws the screw may have and exploit them. This typically results in bending or snapping of the screw. So, how can a shank help? The shank allows for heat dispersion in a screw. As the threads begin creating heat, it moves up into the shank which will take longer to heat up and will not generate nearly the same amount of friction when it goes through the wood.

So another of life’s mysteries solved – something I am sure you always wanted to know!

The latest coronavirus news is that several other lockdowns are being considered. Further local lockdowns are “just days away”, Sky News understands. Sources in Public Health England (PHE) and the Department for Health told Sky News they are “working collaboratively”, focusing on the areas in England where coronavirus cases are rising.

I made my own way down for the newspapers this morning realising at the commencement of my journey I had forgotten to put my incredibly ancient iPhone 4 (10 years old?) which I use solely as a music player to recharge so I had to make do with my own company.  The weather was still changeable this morning but it was not the kind of day when you could really look forward to doing any outside jobs so I resolved to do some tidying up within my study. Some of this time was devoted to unjamming a jammed up printer (which does happen occasionally) but as I am now on a paper economy drive I take once used paper and put it the ‘wrong’ way through the printer so that its gets printed upon the blank side.

On the spur of the moment, I decided to buy myself a Bahco ratchet screwdriver as it seemed to get rave reviews – although originally manufactured in Sweden it is is probably now made in Taiwan. Eager to try it out, I did a little bit of research on the web to discover some practical woodworking advice (of which there is plenty) I now know that for a Reisser 5.0 screw (of which I have a box) I need a pilot hole of 3.5 mm (i.e. the width of the shank of the screw, excluding the actual screw ‘ridges’ and a PoziDriv bit number PZ2) Going to my new plant holder stand, I drilled a pilot hole by hand using my newly Bahco and with exactly the correct width of drill for the pilot hole. Then exchanging the chuck containing the drill with the correct screwdriver head (a PoziDriv PZ2) I then screwed in the Reisser screw so I had taken care to ensure that I had carefully matched the pilot hole drill size, the screw size itself and the screwdriver bit size and I have to say that inserting the screw like this (i.e. the correct way!) was like inserting a hot knife through butter i.e. incredibly easy. So although I had done everything by hand, using the correct materials and dimensions made life easier than if I had used a cordless screwdriver! And I haven’t even mentioned further refinements such as drilling a clearance hole slightly wider than the shaft of the screw only for the ‘top’ piece of wood – or using a lubricant such as bar soap, candle wax, petroleum jelly or a dry spray lubricant. If I had been taught woodwork at school, then this might have been instilled into me – but now I know better, I am resolved to do things the correct way from now on. And to think that I always imagined that screwing two pieces of wo0d together was child’s play and took no intelligence or prior knowledge to sort out.

I see that ‘The Guardian’ newspaper is tonight saying that following the instance of Leicester, more local lockdowns may be on the way. As to why Leicester should be the source of a spike in cases, I quote from an analysis in The Guardian:

The east of the city appears to be the epicentre of this local outbreak. The area includes streets with tightly packed terraced housing, and has a high proportion of ethnic minority families where multi-generational living is more common….Indeed, Leicester as a whole is one of the most culturally diverse areas in the country, with about half of its residents from ethnic minority groups.

I do get the terrible foreboding that the end of the lockdown may have come two weeks too early and that the health of the nation is being sacrificed on the altar of commercial interests. The Scots, Welsh and Northern Irish seem to be handling the whole thing so much more sensibly. In the USA at the moment, new infections are running at the rate of 40,000 per day and there is an informed prediction that this could well rise to 1000,000 per day. The only silver lining to this particular dark cloud is that the response of the USA to the pandemic crisis may well be putting paid to Donald Trump’s chances of re-election in November! We shall have to wait and see.