-
21 Priestman, William Dent
SUBJECT AREA: Steam and internal combustion engines[br]b. 23 August 1847 Sutton, Hull, Englandd. 7 September 1936 Hull, England[br]English oil engine pioneer.[br]William was the second son and one of eleven children of Samuel Priestman, who had moved to Hull after retiring as a corn miller in Kirkstall, Leeds, and who in retirement had become a director of the North Eastern Railway Company. The family were strict Quakers, so William was sent to the Quaker School in Bootham, York. He left school at the age of 17 to start an engineering apprenticeship at the Humber Iron Works, but this company failed so the apprenticeship was continued with the North Eastern Railway, Gateshead. In 1869 he joined the hydraulics department of Sir William Armstrong \& Company, Newcastle upon Tyne, but after a year there his father financed him in business at a small, run down works, the Holderness Foundry, Hull. He was soon joined by his brother, Samuel, their main business being the manufacture of dredging equipment (grabs), cranes and winches. In the late 1870s William became interested in internal combustion engines. He took a sublicence to manufacture petrol engines to the patents of Eugène Etève of Paris from the British licensees, Moll and Dando. These engines operated in a similar manner to the non-compression gas engines of Lenoir. Failure to make the two-stroke version of this engine work satisfactorily forced him to pay royalties to Crossley Bros, the British licensees of the Otto four-stroke patents.Fear of the dangers of petrol as a fuel, reflected by the associated very high insurance premiums, led William to experiment with the use of lamp oil as an engine fuel. His first of many patents was for a vaporizer. This was in 1885, well before Ackroyd Stuart. What distinguished the Priestman engine was the provision of an air pump which pressurized the fuel tank, outlets at the top and bottom of which led to a fuel atomizer injecting continuously into a vaporizing chamber heated by the exhaust gases. A spring-loaded inlet valve connected the chamber to the atmosphere, with the inlet valve proper between the chamber and the working cylinder being camoperated. A plug valve in the fuel line and a butterfly valve at the inlet to the chamber were operated, via a linkage, by the speed governor; this is believed to be the first use of this method of control. It was found that vaporization was only partly achieved, the higher fractions of the fuel condensing on the cylinder walls. A virtue was made of this as it provided vital lubrication. A starting system had to be provided, this comprising a lamp for preheating the vaporizing chamber and a hand pump for pressurizing the fuel tank.Engines of 2–10 hp (1.5–7.5 kW) were exhibited to the press in 1886; of these, a vertical engine was installed in a tram car and one of the horizontals in a motor dray. In 1888, engines were shown publicly at the Royal Agricultural Show, while in 1890 two-cylinder vertical marine engines were introduced in sizes from 2 to 10 hp (1.5–7.5 kW), and later double-acting ones up to some 60 hp (45 kW). First, clutch and gearbox reversing was used, but reversing propellers were fitted later (Priestman patent of 1892). In the same year a factory was established in Philadelphia, USA, where engines in the range 5–20 hp (3.7–15 kW) were made. Construction was radically different from that of the previous ones, the bosses of the twin flywheels acting as crank discs with the main bearings on the outside.On independent test in 1892, a Priestman engine achieved a full-load brake thermal efficiency of some 14 per cent, a very creditable figure for a compression ratio limited to under 3:1 by detonation problems. However, efficiency at low loads fell off seriously owing to the throttle governing, and the engines were heavy, complex and expensive compared with the competition.Decline in sales of dredging equipment and bad debts forced the firm into insolvency in 1895 and receivers took over. A new company was formed, the brothers being excluded. However, they were able to attend board meetings, but to exert no influence. Engine activities ceased in about 1904 after over 1,000 engines had been made. It is probable that the Quaker ethics of the brothers were out of place in a business that was becoming increasingly cut-throat. William spent the rest of his long life serving others.[br]Further ReadingC.Lyle Cummins, 1976, Internal Fire, Carnot Press.C.Lyle Cummins and J.D.Priestman, 1985, "William Dent Priestman, oil engine pioneer and inventor: his engine patents 1885–1901", Proceedings of the Institution ofMechanical Engineers 199:133.Anthony Harcombe, 1977, "Priestman's oil engine", Stationary Engine Magazine 42 (August).JBBiographical history of technology > Priestman, William Dent
-
22 serc|e
n 1. Anat., Med. heart- atak/choroba serca a heart attack/disease- bicie jego serca the beat a. beating of his heart, his heartbeat- operacja na otwartym sercu open-heart surgery- przeszczep serca Med. (operacja) a heart transplant- wrodzona wada serca a congenital heart defect- mieć słabe/chore serce to have a weak/bad heart- umrzeć na serce to die of heart failure- on ma serce jak dzwon he has a healthy a. strong heart- od lat jest chory na serce he’s had a heart condition for years- serce waliło mu jak młotem his heart was thumping away like a drum2. sgt (pierś) heart, breast- tulić kogoś do serca to hug sb to one’s breast- upadł, łapiąc się za serce he fell pressing his hand to his heart- złożył przysięgę, kładąc rękę na sercu he took an oath with his hand on his heart3. (usposobienie) heart- człowiek wielkiego serca a. o wielkim sercu a big-hearted a. generous-hearted person- być człowiekiem małego serca a. o małym sercu to be a faint-hearted a. pigeon-hearted person- mieć dobre/miękkie/zimne/nieczułe serce to have a good/soft/cold/hard heart- serce jak kamień a. serce z kamienia a heart of stone- potrzeba nam gorących/ofiarnych serc we need enthustiastic/dedicated people4. książk. (siedlisko uczuć) heart- sekrety jej serca the secrets of her innermost soul- kochać/nienawidzić kogoś całym sercem a. z całego serca to love/hate sb with all one’s heart a. with one’s whole heart- mam serce przepełnione radością/smutkiem my heart brims over with joy/sadness- napełniasz nasze serca dumą/szczęściem you fill our hearts with pride/happiness- myśli, które napełniają serca rodziców strachem thoughts that strike fear in the hearts of parents- on jest bliski/drogi memu sercu he is close/dear to my heart- ta wiadomość uraduje twoje serce the news will gladden your heart- sercem jestem przy was a. z wami my heart goes to you a. is with you- zjednała sobie serce publiczności she won the hearts of the audience- zawsze okazywał nam serce he was always kind-hearted towards us5. sgt (miłość) heart- oddać komuś serce to give one’s heart to sb- zabrać a. skraść komuś serce to steal sb’s heart- zdobyć/podbić czyjeś serce to win/capture sb’s heart- złamać komuś serce to break sb’s heart6. sgt (męstwo) heart- wojownik o lwim sercu a lionhearted warrior- nawoływał towarzyszy, by nie tracili serca he appealed to his companions not to lose heart7. (przedmiot, symbol) heart- serce z piernika/czekolady heart-shaped gingerbread/chocolate- wisiorek w kształcie serca a pendant in the shape of a heart8. (środek) heart- w sercu dżungli/miasta in the heart of a jungle/city9. (w dzwonie) clapper, tongue- □ Serce Jezusa Relig. the Sacred Heart- sztuczne serce Med. artificial a. mechanical heart- Ryszard Lwie Serce Richard of the Lion’s Heart■ do głębi serca [przejąć się, wzruszyć] deeply- jak a. co serce (komuś) dyktuje [mówić, pisać] from the a. one’s heart- od serca [rozmowa, wyznanie, słowa] heart-to-heart; [bić brawo, pomagać] wholeheartedly- przyjaciel/przyjaciółka od serca a bosom friend- w głębi serca [zazdrościć, myśleć, odczuwać] in one’s heart of hearts, deep in one’s heart- w prostocie serca [wierzyć, zwierzać się] naively; [postępować] artlessly- w sercu [uważać, czuć] privately- z biciem a. drżeniem serca a. z bijącym sercem (z niepokojem, niepewnością) with one’s heart in one’s mouth; (ze wzruszeniem) with a lump in one’s throat- z bólem serca with an aching heart- z ciężkim sercem with a heavy heart- z dobrego a. z dobroci serca [pomagać, ofiarować] out of the goodness of one’s heart- ze szczerego serca [wspomagać, poświęcać się] kind-heartedly- z głębi serca [uczucia, życzenia] from the bottom of one’s heart- z otwartym sercem [przyjąć, witać, odnosić się] with an open heart- brać (sobie) coś do serca to take sth to heart- być bez serca a. nie mieć serca to have no heart- chwytać kogoś za serce to tug at sb’s heartstrings- czytać w czyimś sercu to read sb’s thoughts- kamień spadł mi z serca that is a weight off my mind- leży mi na sercu twoje zdrowie/szczęście I have your health/happiness at heart- tyle kłopotów leży mi na sercu I have so many troubles to worry about- mieć gołębie serce to be gentle at heart- mieć serce dla kogoś/do czegoś to be fond of sb/sth- mieć serce jak głaz a. z kamienia, mieć kamienne serce to have a heart of stone- mieć serce na dłoni to have one’s heart in the right place- on co ma w sercu, to w gębie pot. a. na języku he is a person of candour- mieć zajęcze serce to be chicken-hearted a. chicken-livered- mieć złote serce to have a heart of gold- miękko mi się robi koło serca my heart melts- nie mieć serca czegoś zrobić to not have the heart to do sth- nie mam serca powiedzieć jej prawdy I haven’t (got) the heart to tell her the truth- nie mieć serca dla a. do kogoś to dislike sb- nie mam już dla niej serca I don’t like her any more- nie mieć serca do czegoś (nie mieć ochoty) to be lukewarm about sth- on nie ma serca do sportu his heart’s not in sport- nosić a. chować kogoś/coś w sercu to have sb/sth engraved upon one’s heart- otworzyć serce komuś a. przed kimś to open one’s heart to sb, to pour out one’s heart to sb- pójść za głosem serca to follow one’s heart- idź za głosem swojego serca let your heart rule your head- przypaść komuś do serca to take a. catch sb’s fancy- przypadł mi do serca I took an instant liking to him- przypadłeś jej do serca she took a shine to you pot.- serce kraje się a. pęka mi na widok… it breaks my heart to see…- serce o mało nie pękło mu z żalu/tęsknoty his heart almost burst with grief/longing- serce mi krwawi pain rends my heart- serce staje mu w gardle a. podchodzi a. skacze mu do gardła (z niepokoju, obawy) he has his heart in his mouth a. throat; (z podniecenia, wzruszenia) his heart leaps- serce rosło na widok jej zdrowych dzieci it was a joy to see her healthy kids- serce wyrywa się mu do kogoś/czegoś he feels a yearning for sb/sth- serce zamiera mu w piersi his heart skips a. misses a beat- serce zamarło jej z zachwytu she was speechless with delight- trafić a. przemówić do czyjegoś serca to touch sb’s heart- jednym uśmiechem potrafi ująć ją za serce his smile is enough to melt her heart- ukłuć kogoś w serce to pierce sb’s heart (like a dagger)- wkładać w coś (całe) serce to put one’s heart and soul into sth- wkraść się do czyjegoś serca to gain a place in sb’s affections- wyrzucić kogoś z serca to wipe sb out of one’s memory- zdjąć komuś kamień z serca to take a load off sb’s mind- zrzucić kamień z serca to get it off one’s chest pot.- serce nie sługa przysł. the heart knows no masterThe New English-Polish, Polish-English Kościuszko foundation dictionary > serc|e
- 1
- 2
См. также в других словарях:
Fear Itself (comics) — Fear Itself Promotional image by Stuart Immonen. Publisher Marvel Comics Publication date April – October 2011 … Wikipedia
Fear and Loathing in Las Vegas (film) — Infobox Film name = Fear and Loathing in Las Vegas image size = caption = Theatrical poster director = Terry Gilliam producer = Patrick Cassavetti Laila Nabulsi Stephen Nemeth writer = Screenplay: Terry Gilliam Tony Grisoni Alex Cox Tod Davies… … Wikipedia
The Haunt of Fear — Publication information Publisher EC Comics Schedule … Wikipedia
St. John the Baptist — St. John the Baptist † Catholic Encyclopedia ► St. John the Baptist The principal sources of information concerning the life and ministry of St. John the Baptist are the canonical Gospels. Of these St. Luke is the most complete,… … Catholic encyclopedia
Gabriel — For other uses, see Gabriel (disambiguation). The angel Gabriel Annunciation by Anton Raphael Mengs Gabriel appears to the virgin Mary. Archangel, Angel of Revelation, Spirit of Truth … Wikipedia
Luke 1 — 1 Forasmuch as many have taken in hand to set forth in order a declaration of those things which are most surely believed among us, 2 Even as they delivered them unto us, which from the beginning were eyewitnesses, and ministers of the word; 3 It … The King James version of the Bible
Galut — or Golus ( he. גלות), means literally exile. Galut or Golus classically refers to the exile of the Jewish people from the Land of Israel. There were altogether four such exiles. These are said to be alluded to in Abraham s biblical vision of the… … Wikipedia
Claimed Messianic prophecies of Jesus — Jesus of Nazareth is universally accepted as the Messiah by Christians. However, mainstream Jews do not regard him as their Messiah because he failed to fulfill the temporal interpretations of the Bible. Christians believe that Jesus has… … Wikipedia
Genesis 15 — 1 After these things the word of the LORD came unto Abram in a vision, saying, Fear not, Abram: I am thy shield, and thy exceeding great reward. 2 And Abram said, LORD God, what wilt thou give me, seeing I go childless, and the steward of my… … The King James version of the Bible
Mary Anning — with her dog Tray, painted before 1842. The Golden Cap outcrop can be seen in the background Born 21 May 1799 … Wikipedia
Battle of Myriokephalon — Infobox Military Conflict conflict=Battle of Myriokephalon caption=Emperor Manuel I Komnenos partof=the Byzantine Seljuk wars date=September 17, 1176 place=Near Lake Beyşehir, TurkeyTreadgold, p. 635] result=Seljuk Defensive Strategic victory… … Wikipedia