1934 Webster's New Internat. Dict. Eng. Lang. Slush-cast, v.t. & i.

1965 E. Tunis Colonial Craftsmen iv. 75/2 Feet and knobs were cast solid, but spouts and handles were slush cast, a system used also for such things as sand shakers and nursing bottles whose inner surfaces wouldn't be visible.

1930 M. Stern Die-casting Pract. i. 16 The thickness of a slush casting depends upon the length of time that the metal is left in the mold.

1934 Charnock & Partington Mech. Technol. (ed. 2) xxxv. 485 Slush casting is a method of producing light hollow castings without the use of cores.

1936 H. L. Campbell Metal Castings iii. 53 Slush castings are produced by pouring the low-melting alloys of lead, antimony, and zinc into metal molds and, after a short interval, slushing out the metal which remains in a liquid state.

1963 F. D. Jones & P. B. Schubert Engin. Encycl. (ed. 3) 1161 The process known as slush-casting is employed extensively in the production of ornamental objects made of spelter or zinc.

1842 J. F. Cooper Wing-and-Wing ii. 20 They were only put there yesterday..a little slush-money did it all.

1976 National Observer (U.S.) 24 Jan. 3/3 There have been a series of well-founded reports..that the multinational corporations have been shoveling slush money into Christian Democrat coffers.

1957 V. J. Kehoe Technique Film & Television Make-up xii. 148 It [sc. dental stone] has low absorption qualities so is not suitable for slush molds.

1965 E. Tunis Colonial Craftsmen iv. 75/2 The slush mold's two halves shaped only the outside of the article. The caster poured hot metal into it, sluiced it around carefully, and then poured it out again.

1954 N. J. Rakas Plastics Engin. Handbk. x. 314 The physical qualities of slush-molded plastisol are such that it is possible to do exceptionally accurate work.

1943 H. R. Simonds & C. Ellis Handbk. Plastics 971 Slush molding, a process for molding hollow castings with accelerated thermoplastic phenolic resins.

1957 V. J. Kehoe Technique Film & Television Make-up xii. 154 Slush molding requires the use of a fillered latex as the unfillered variety will not build-up on itself in a plaster mold.

1963 H. R. Clauser Encycl. Engin. Materials 491/2 Vinyl foam products such as armrests..are manufactured by first forming a tough vinyl skin by spraying, slush molding or rotational molding. The interior then is formed by casting..a vinyl plastisol foam within the pregelled skin.

1880 J. F. Carll Geol. Oil Regions of Warren [etc.] Counties 254 The measures above the Warren and Bradford ‘Third sands’ have produced considerable ‘shale or slush oil’, which may perhaps be attributed to a fissured condition of these rocks.

1884 U.S. Tenth Census X. 13 The first well sunk to the Bradford sands was drilled..2 miles northeast of Bradford. ‘Slush oil’ was found at a depth of 751 feet, and in November, 1871, producing sand was struck at 1,110 feet.

1931 Sun (Baltimore) 29 Apr. 1/4 Four lay in the slush pit, an earthen depression intended to catch drilling refuse.

1975 L. Crook Oil Terms 105 Slush pit, pit used for storing drilling mud.

1913 Oil & Gas Man's Mag. 8 822/2 Two slush pumps are usually installed with each drilling outfit—one pump to operate and the other one to act as a relay.

1921 W. H. Jeffery Deep Well Drilling vii. 236 Water impregnated with clay, otherwise known as mud laden fluid, is forced by slush pumps down inside the casing,..returning between the casing and the wall of the hole.

1937 Amer. Speech 12 48/2 Slushpump, a trombone.

1938 D. Thomas Let. 16 May in Sel. Lett. (1966) 195 The double-bed is a swing-band with coffin, oompah, slush-pump, gob~stick.

1943 N.Y. Times 9 May ii. 5/4 That man with the Slush Pump was a fine sender.

1949 Our Industry (Anglo-Iranian Oil Co.) (ed. 2) ii. 37 The circuit of this mud-laden fluid..commences at the slush pumps.

1962 J. Wain Strike Father Dead 141 I could see at once why he preferred the valve trombone to the ordinary slush-pump.

1974 BP Shield Internat. Oct. 19/3 There's always a lot of work we can do in the sheltered places—like maintaining the slush-pump.

1977 J. Wainwright Do Nothin' x. 176 Get Walt to help on the slushpump try-outs. Walt stays first trombone.

1863 W. F. Campbell & J. F. Campbell Life in Normandy I. 111 Slush, slush, went the two wheels into two holes.]

1880 R. D. Blackmore Mary Anerley I. xviii. 311 The hollow of the rocks received the first billow with a thump and a slush.

1899 H. Sutcliffe Shameless Wayne xxvii. 351 The faint slush-slush of horse-hoofs striking sodden earth.

1902 A. Terton Lights & Shadows in Hosp. viii. 118 A stable bucket I could give myself a good slush in.