US701882A - Press for ice-machines. - Google Patents

Description

tion of a press.

UNITED STATESH PATENT OEEICE.

DANIEL L. HOLDEN, oF PHILADELPHIA, PENNSYLYANIA.

`PritssFoR ICE-MACHINES.

SPECIFICATION forming part of Letters Patent N o. 701,882, ydated June 10, 1902.

v Appiiatimi'ied August 16,1901. serial No. 72,220. (Nt model.) p

To all whom. .it may concern:

Be itknown that I, DANIEL L. HOLDEN, a citizen of the United States, residing atdPhiladelphia, in'the county 'of Philadelphia and` ice is forced in for compressionin order tov produce asolid and transparent block, and the same means is utilizedto also remove any water which passes above the ice block second, the more secure and tight fastening of the removable en d gate Vagainst which the block is compressed'and which is required to be firmly held during the process of block formation and its possible moving-prevented while under such pressure. J Y

My invention is illustrated in ,the accompanying drawings, in Which f Figure 1 is for the most part a central vertical section through a fpress With the airpumps and connections not in section. Y Fig. 2 is au end View of one of a pairxof presses and a central cross-section of the other with the air-pumps and connectionsin elevation. Fig. 3 is an enlarged partial longitudinal sec- Fig. is an enlarged partial cross-section of a press.

Similar figures ofl reference Aindicate similar parts throughout the views.

The presses 1 are of rectangular section, having pistons 2, Whose rods 3'connec-t them with the hydrostatic cylinders. -(Not shown.) A hollow bed-plate 4 supports the presses. The sides '5 61of the-presses have vertical grooves 7 formed on their inner sideswhi`ch are met bycross=grooves 8 in top 9 and 10 in bottom 11, and Within the press is a rectangular lining *12,- having `multiple perforations 13 leading tothe grooves. From grooves 9 there are also Water-passages 14, leading to the space 15 under the presses and to a proper receptacle. (Not shown.) Grooves Shave longitudidal channels 16 connecting them and exterior to the lining 12 for air or Water pas- -the Ways 27 28.

sage, an'd above the grooves an opening17.

An air-pump 18 is located above thepresses, driven by pulley 19, and thereto are attached suction-pipes 2O 21, tapping openings 17 and therethrough the whole system of grooves and channels for the purpose of removing the air from the presses. The pump delivers its accumulationto vfreezing-tank 22 througqh deli"very-pipev23, and a check-valve 24'prevents g By the means described all freey any return. air passing into the press with the ice particles, as also all released air when the ice is being pressed toa block, is removed, thus =making a transparent block. The ice particles are delivered to the presses through passage-Ways 25, the delivery being controlled by pumps and valves which arethe subject of t other patents andneed not be further mentioned in this application. t

At the outer 'end of the presses., opposite pistons 2, are the removable end. gates 26, Wedge-shaped or formed straight on therinner or press side and tapered on the opposite or outer side, guided for vertical movement 'by I Ways 27 28 and operated by cylinders 29, having. suitable attachments for the purpose.

The great pressure produced by pistons 2 on the ice particles in forming the block is such as to sometimes overcome in a measure the power of cylinders 29 to hold` gates 26to a close stoppageof the pressesends, owing to l ported above the notch on a shaft 33, carried y by bearings 34. An arm 35 is securedto shaft 33. It has a rod 36 attached thereto, which passes back to the operators position, and by it he can move dog 32 into or out of notch l31, thereby locking or unlockingthegate. To ,still furtherins ure close contact'fbetvveen the gate and the ends of. the presses, `ay dovetailed v.recess or groove 37 is formed' in Vthe Astraight face of the gate around the pressend; and a compressible material 38 is placed therein, so that when the gates are in position the material shall yield to a sufficient degree to insure a perfectly air-tight fit. The material ICO might be inserted in the press end; but on account of renewals and better facilityT for handling it is deemed best to insert the yielding material in the gates.

I claiml. In an ice-machine, rectangular-section presses therefor, rectangular linings in the presses, vertical grooves around the side linings, horizontal grooves above the top lining and below the bottom lining, and passageways for air above the top lining and for water below the lower lining and connections from the top grooves to an exit for the air.

2. In rectangular section ice -machine presses, perforated rectangularlinings therefor, vertical and horizontal grooves around the linings and connected to the interior of the presses by the perforations aforesaid, water-passages from the grooves at the bottom of the presses, air and water channels connecting the grooves at the top of the presses, a central passage, and apump having connections to said passage and adapted to remove the air from the passage-ways and grooves.

In an ice-machine, rectangular-section presses therefor, perforated linings for the presses, vertical and horizontal air and water grooves and passages around the linings, a pump having its supply or suction connections in communication with said grooves and passages and to the presses by the liningperforations, and a delivery from the pump to the freezing-tank of the machine.

et. In an ice-machine, a pairof rectangularsection presses therefor, a pump having counections to each press to remove the air therefrom, and a check-valve in the delivery-pipe of the pump.

5. In an ice-machine, rectangular-section presses therefor, end gates therefor, having a vertical side next the press end, and an angular side opposite thereto, means to remove the gates and uncover the press ends and means independent of the moving means to lock the gates when moved into position, to thereby prevent the pressure from forcing the gates upward on'their inclined face.

6. In an ice-machine, presses therefor, vertical end gates for the presses and means for their moving, shafts supported above the gates, notches in the gates, and means supported on the shafts to engage the notches and thereby lock the gates from raisin".

7. In an ice-machine, presses therefor having end gates and means for their vertical operation, and means under control of the operator for locking the gates when moved into position and thereby prevent their raising when subjected to pressure.

S. In an ice-machine rectangular-section presses, end gates therefor of wedge shape, means to lift and lower the gates to cover or to uncover the press ends, and a yielding ma terial inserted in the vertical face of the gates and adapted to be compressed to exclude air from the presses.

9. In an ice-machine, rectangular-section presses therefor, wedge-section end gates for the presses, means to operate the gates for closing and unclosing the presses, and yielding material so placed and fixed in the vertical face of the wedge-shaped gates as to prevent air-passage between the ends of the presses and their gates when the gates are in operative position against and closing the presses.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL L 'IIOLDEN- XVi messes:

WILLIAM C. StroEvER, RANsoM C. WRIGHT.

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