Specification of Daniel Rutter Long : preserving animal food by means of injection.

  • Long, Daniel Rutter.
Date:
1855
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Daniel Rutter Long : preserving animal food by means of injection. Source: Wellcome Collection.

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    Long's Improvements in Preserving Animal Food by means of Injection. IT OW KIT GW YE, that in compliance with the said proviso, I, the said Daniel Rutter Long, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following description thereof, that is to say) 5 My Invention consists in injecting certain anti-putrescent and flavoring pre¬ parations into the blood-vessels by means of a force pump. In this way the whole of the animal becomes impregnated instantaneously. I recommend the mouth of pipe leading from the pump to be inserted into the heart, but if that, by any chance, is torn or cut so as to be unfit for it, then inject into the large 10 vessels. I also recommend the operation to be performed as soon as it can after the animal is killed. Kill the animal by striking a blow on the head, or by cutting the throat, according to the class of animal, then turn him on to his right side and thrust the knife into the heart. The incision should be made as near as possible to the breast bone, but not exactly upon it, about an inch to 15 the left of the centre of the bone, and it will pass easily through the cartilage (or gristle) which joins it to each of the ribs. Let the cut be made, if possible, between the ends of the sixth and seventh ribs, and the knife will generally pass into the heart exactly in the spot I recommend to be made for the intro¬ duction. When the animal has bled, which he will not appear to do freely, 20 (as the blood remains in the chest), with pigs, I recommend the scalding or burning to be done as quickly as possible, and let him be scraped ; then place him upon his back on a clean bench, and carefully open the chest through the whole length of the blade bone. Re sure not to cut the heart or any of the large vessels. The greatest danger, if any, is near the throat, for, unless the 25 knife goes very cautiously, some of these will be divided, and the injection of the fore part of the body rendered a very tedious operation. Having opened the chest, place a stick between to keep it so, and cautiously open the pericar¬ dium (membrance covering the heart), raise the heart with the left hand, turn it a little to the right, and make an incision into the left ventricle, which is the 30 thickest and strongest part of the heart; let it be made near the point of the heart, and just large enough to admit the pipe of the force pump. If the cut, which was first made after knocking down the animal, should happen to be in the right spot, as is often the case, that will do, or only require enlarging. Having the pump and preparation ready, introduce the pipe two or three inches into the 35 heart and press it round the pipe, then let a man steadily and gently pump, and, having made incisions into the feet and nose, and cut off the tail, you will at all those parts see the liquor ouse out as it is injected. When no more can be injected, which is known by its escaping from the heart, the operation is