21 |
Method and apparatus for tanning leather |
US44494030 |
1930-04-17 |
US1893706A |
1933-01-10 |
CHARLES KANNEL |
|
22 |
Extractor |
US42167630 |
1930-01-18 |
US1824424A |
1931-09-22 |
WALTER BUSS |
|
23 |
Leather working machine |
US29353228 |
1928-07-18 |
US1815140A |
1931-07-21 |
CONNOR JOHN H |
|
24 |
Device for wringing wet leather |
US50305621 |
1921-09-24 |
US1496808A |
1924-06-10 |
HULBERT EDWIN F |
|
25 |
glasel |
US1414404D |
|
US1414404A |
1922-05-02 |
|
|
26 |
Tanning apparatus |
US29190819 |
1919-04-22 |
US1364379A |
1921-01-04 |
JONES ADRIAN S |
|
27 |
Systems for opening and closing access apertures in the outer walls of tannery paddle tumbles and the like |
US3788004D |
1972-02-28 |
US3788004A |
1974-01-29 |
BILLERI T; BILLERI F |
The invention provides systems for opening and closing access apertures in the outer walls of tannery paddle tumblers and the like. The system consists of a door which is slid in guides, the movement of the door being controlled by a fluid motor and fluid control. The movement of the door is effected by the fluid motor which moves a rack attached to the door. Means for providing a seal between the door and the access aperture are also described.
|
28 |
Fiberglass processing tank |
US3664161D |
1970-10-06 |
US3664161A |
1972-05-23 |
CRESSMAN FRED D |
A molded resin-bonded fiberglass processing tank having a hub structure formed integrally with the end wall. The hub structure is made up of a laminated core overlayed with a fiberglass laminate. A gudgeon is attached to the core. Reinforcing ribs are laid on the end wall, the ribs, which radiate from the hub, extend over the contiguous portions of the cylindrical wall of the tank. The ribs are formed with a center core, preferably of foamed plastic. A belt track and a support ring are also formed integrally on the cylindrical wall of the tank.
|
29 |
Hide processing method and apparatus |
US3518849D |
1968-11-26 |
US3518849A |
1970-07-07 |
EGGLESTON WILLIAM S |
|
30 |
Closure for tanning drums |
US18425850 |
1950-09-11 |
US2697534A |
1954-12-21 |
HURST TOPLEY CHARLES |
|
31 |
Securement for hatch covers and the like |
US26312351 |
1951-12-24 |
US2665161A |
1954-01-05 |
STEHLING RALPH J |
|
32 |
Apparatus for the treatment of hides, skins, and the like |
US22045251 |
1951-04-11 |
US2599503A |
1952-06-03 |
GEORGE WILSON EVAN |
|
33 |
Treating skins, textile fabrics, and the like |
US67018846 |
1946-05-16 |
US2426372A |
1947-08-26 |
PAUL POSER |
|
34 |
Tumbling machine |
US46844542 |
1942-12-09 |
US2360380A |
1944-10-17 |
VETORINO JOHN E; GENDRON NORMAN R |
|
35 |
Apparatus for use in treating hides, skins, and the like |
US28553539 |
1939-07-20 |
US2250679A |
1941-07-29 |
RUSSELL JOSEPH L |
|
36 |
Drum used in the processing of hides and skins |
US11306836 |
1936-11-27 |
US2090185A |
1937-08-17 |
DWIGHT CLARKE NORMAN |
|
37 |
Method of treating leather |
US43988130 |
1930-03-29 |
US1877119A |
1932-09-13 |
BLATZ PETER A |
|
38 |
Method of tanning hides and skins |
US41818230 |
1930-01-03 |
US1824549A |
1931-09-22 |
AARON HOYT |
|
39 |
Method of and apparatus for treating hides and skins |
US58860622 |
1922-09-16 |
US1694447A |
1928-12-11 |
MERRITT MATTHEW M |
|
40 |
Apparatus for and method of tanning hides |
US54886122 |
1922-04-01 |
US1668652A |
1928-05-08 |
MERRITT MATTHEW M |
|