Interim report of the Prison Diets Committee.

  • Egypt. Wizārat al-Dākhilīyah. Prisons Department. Prison Diets Committee.
Date:
1917
Catalogue details

Licence: In copyright

Credit: Interim report of the Prison Diets Committee. Source: Wellcome Collection.

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    ate Sus-AppEeNnpDIx III. CALCULATIONS ON DATA OF SUB-APPENDIX II. Stone-carrying. -Data :— Average ‘load: «2.i 4. hace. <2> cae ee 47-5 kilogrammes. Average weight of man... ... ..0, bsp) eee 65:3 Z Distance walked 90 35. 7 eles: sa acohb eat eee 89 metres. Wertical :06. 4) 6 Gui cee ists meme ca 12 os Weight of stone per day... ... ... ... 2,125 kilogrammes. Number’ of yourneysi= eae et AS 44-7 say 45. Time to .traverse ‘distance 2 4.9 oY ae! 2 minutes. The man lifts 112-8 kilogrammes 12 metres 45 times, or does 60,912 kilogramme-metres of work. It is now assumed that the work done in walking is one-fifteenth of that of lifting the same weight vertically. Therefore the labour of transferring 65-3 + 47-5 kilogrammes through a distance of 89 metres e+ 8 45 45 times is aie ee Fee eke det yeh? Jae wes Ine OE ee DO Bey ALO Te Iv een ree The work of walking unloaded downhill will be much less,* say A. 5 one-thirtieth of that of vertical lifting, or haa OUR ATaRE 8,718 iS The work of transferring his weight to and from the quarry is 65:3 x 4,000 16 Oe TN Se hee cot ede ae ge eee ee ee ee a a ” In all... ... 117,100 kilogramme-metres, Apparently this is done in 45 x 2 x 2 minutes + say 60 minutes for coming and going + say 4 of 45 x 2 x 2 minutes for rests, or in five hours say. The British convict on the treadmill used to do 166,000 kilogramme-metres in six hours, and the American convict, on a better diet, 192,000 kilogramme-metres. ; The shadiif worker does 90,000 kilogramme-metres of actual lifting and say 20,000 kilogramme-metres coming and going, or say 110,000 kilogramme-metres. The American estimate of the actual work of lifting by the shadif is 96,000 lilogramme-metres, The general result is that the convict, in this case, does much the same amount of work as the felldh. Trolley driving. (1) Heavy,Trolley; (2) Light Trolley. DATA, Heavy Trolley. Light Trolley. Weight of loaded trolley... ... ... ... ... .. «| 2,170 kilogrammes 1,640 kilogrammes Weight of unloaded trolley ... 2 4.0 wee wer ee] 2 470 3 326 ss Distance ‘travelled 6.0 ee a. ee ee | OU ame tes 250 metres Numaber. of. |ouriievaitasiy ss thin ifie. 01s bso Lee 19 19 Weight of stone raised ... 21. 1. «1... «+. «s-| 1,700 kilogrammes 1,275 knlogrammes Height. 10 ees sak ath eae geet mena oe een ee 1:20 metres f Number. of men: toa rolle yin. 05,24 cua eter are 3 2 Average weight wisgpujjecugiudss vac” cso ekieneee | eeu De alosTammes 65 kilogrammes Resistance of loaded trolley to traction ... ... ... 35 » weight 25 » weight * Negative work is about equal to the static work involved in maintaining a given weight, r. Tigerstedt Joc. cit. (W. H. W.).- + Dr. Wilson puts this as rather less than for the heavy trofleys, and so 1:20 metres has been taken.