US1889222A

US1889222A - Ice scoring machine

Info

Publication number: US1889222A
Application number: US409609A
Authority: US
Inventors: John H Schreiber
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-11-25
Filing date: 1929-11-25
Publication date: 1932-11-29
Anticipated expiration: 1949-11-29

Description

Nov. 29, 1932- J. H. SCHREIBER ICE SCORING MACHINE Filed Nov. 25. 1929 4 Sheets-Sheet lv W e/776i. @550 gains/152 Nov. 29, 1932. J. H. SCHREIBER 1,889,222

ICE SCORING MACHINE Filed Nov. 25, 1929 4 Sheets-Sheet 2 w 1932- I .1. H. SCHREIBER 1,889,222

ICE SCORING MACHINE Filed Nov. 25. 1929 4 Sheets-Sheet 5 ICE SCORING MACHINE Filed NOV. 25. 1929 4 Sheets-Sheet 4 Fig.5.

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Patented Nov. 29, 1932 UNITED STATES JOHN H. SGHREIBER, OF ST. LOUIS, MISSOURI ICE SCORING MACHINE Application filed November 25, 1929. Serial No. 409,609.

This invention relates to ice scoring machines; and objects of the invention are to provide an improved ice scoring machine having a conveyor for moving the ice into and out of the machine; an elevator for raisingand lowering the ice from and to the conveyor; scoring devices which operate to score the ice vertically only during the downward movement of the ice during descent of the elevator instead of during the upward movement of the ice While the elevator is ascending; mechanism for moving these scoring devices to and from operative position so that they are out of contact with the ice during the upward movement of the ice and contact with the ice only during downward movement of the ice so as to minimize the power required to operate the machine; mechanism for stopping the ice in proper position on the elevator and causing the elevator to operate to raise and to lower the ice automatically and as an incident to movement of the ice onto the elevator and for controlling said mechanism to permit the conveyor to move the ice from the machine and across horizontal scoring devices when the elevator descends; mechanism for forming the horizontal scores approximately in the exact center of the ice block regardless of the tapering formation of the ice block; and mechanism for increasing the speed of operation of the conveyor to move the block of ice from the machine faster than the block of ice is moved into the machine so as to make room for the next incoming block.

Various other objects and advantages of the machine will appear from thefollowing description, reference being made to the accompanying drawings, in which Fig. 1 is a horizontal cross sectional view of the machine approximately midway of its height.

Fig. Qis a vertical longitudinal sectional view of the machine approximately midway of its sides. I r

Fig. 3 is a vertical cross sectional view of the machine approximately on the line 33 of Fig. 2. p H y Fig. 4: is a sectional view on theclutch controlling the elevator operating mechanism Eaken approximately on the line H of Fig. 5 is a cross sectional view of this clutch inechanism on an irregular cross sectional Fig. 6 is an enlarged plan view of the gearing for operating the various mechanisms embodied in the machine.

Fig. 7 is a verticalsectional view of the main frame showing clearly the elevator op: erating connections.

Fig. 8 is a view showing details of the device for controlling the horizontal scorers.

The machine frame comprises relatively rigid upright corner members 1, two of which are at each side of the machine. The two upri ht members 1 at each side of the machine are rigidly connected at their lower ends by longitudinal frame members 2 which F may be'angle bars, as shown, and are connected at their upper ends and by longitudinal frame members 3. The sides of the frame thus constructed are rigidly connected at their lower ends by transverse frame members 4- andat their upper ends by transverse frame members 5. To the adjacent sides of the frame members 1 at each side of the machine vertical guide bars 6 are rigidly secured for the purpose of guiding the elevator. The opposite bars 6 are spaced apart S0 farther than the opposite members 1, so that each member land its attached bar 6 form a corner, as will be understood by reference to Fig. 1 of the drawings.

The elevator comprises opposite end frames, each of which may be made by bending a bar. to suitable shape to provide vertical sides 7 connected at their lower ends by transverse portions 8 and having their upper ends 9 bent and extended inwardly toward each other. Theends9 extend over the horizontal flanges of spaced longitudinal angle bars 10. The ends of the bars 10 are rigidly connected by cross rods 11 The lower portions 8 of r these elevator frames 7 are rigidly connected by a plate 12 which is seated on the upper sides of said portions 8 and has its side edges spaced from the upright frame portions 7 (Fig. 3). The elevator frame thus formed is between and guided by the guide bars 6, the

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outer edges of the upright frame portions 7 being against the inner edges of the frame members 1, all of which is clearly shown in Fig. 1 of the drawings. Thus the elevator is guided and held from substantial oscillation laterally or longitudinally.

A chain 13 is connected to the rod 11 at the front end of the elevator and passes over a sprocket wheel 14 rotatively supported by a shaft 15 mounted near the top of the frame of the machine. From the wheel 14 the chain 13 extends over a wheel 16 at the opposite end of the frame of the machine and thence downwardly under a sprocket wheel 17 rotatively carried by a vertically movable support 18. The end of the chain 13 is secured to a rigid holder 19. The support 18 is a frame mounted for vertical sliding move ments in guides 20. It is clear that by raising and lowering the frame 18, the wheel 17 will be raised and lowered; and that when the wheel 17 is lowered the chain 13 will be drawn upwardly to the wheel 14 and across the wheels 14 and 16', and that when the frame 18 is raised the chain will move in the opposite direction. A chain 21 has its end connected to the rod at the rear end of the elevator frame and passes over a wheel 22 that is supported by the same shaft 23 on which the wheel 16 is mounted. I The chain 21 passes downwardly under a wheel 24 on the same shaft 25 on which the wheel 17 is mounted, and thence to a rigid connection 26. It is now clear that downward movement of the frame 18 will operate both chains 13 and 21 effectively to raise the elevator, and that upward movement of the frame 18, after said frame has been moved downwardly, will permit the elevator to descend.

A series of transverse shafts 27 are ro'la tively ournaled in the frame members 2. Each of said shafts 27 has attached thereto a pair of spaced. conveyor wheels 28 between and below the upper periphery portions of .i which the bottom member 12 of the elevator is located when the elevator is down (Fig. 3)., Thus, a block of ice may be started endwise into the front end of the machine between the flaring guides 29. When the front end of the ice bloc-k passes onto and is en gaged by the convevor rollers 28 at the front of the machine, the ice block will thereby be moved into the machine and into the elevator. The elevator bottom 12 will prevent the front end of the ice from dropping below the axes of the conveyor rollers 28 so that the block of ice will be quickly and effectively moved into the machine and to proper position within the elevator. Each of the shafts 27 has attached thereto a spiral pnion 30 meshing with spiral pinions 31 attached to a shaft 32 rotatively supported at one side of the machine. The gearings 30 and 31 are enclosed within an appropriate housing 33.

A pair of rock shafts 34 are supported in bearings 35 attached to the outer side of the frame members 1. Near its front end each of the rock shafts 34 has attached thereto a hanger arm 36, the lower end of which supports a bearing 37 (Fig. 1). A short shaft 38 is supported in axial alinement with each shaft 34 by an arm 39 pivotally supported for swinging movements by an annular eX- tension 40 which is seated for turning movements in a hole in the frame member 41.

Each arm 39 constitutes a housing member cooperating with another housing member 42 suitably attached thereto and supporting at its lower end a bearing 43.

The bearings 37 and 43 at each side of the machine are axially alined and constitute journals for the shafts 44 to which are attached the scorer saws 45. It is now clear that when the shafts 34 are turned in a di rection to swing the arms 36 and 39 inwardly the scorers 45 will be moved inwardly to positions to form scores in the opposite sides of a block of ice; and, when the shafts 34 are turned in a direction to swing the lower ends of the arms 36 and 39 outwardly, the scorers 45 will be moved outwardly beyond position to contact with the ice. so that the ice blocks may be moved upwardly without being engaged by the scorers. The inward position of one of the scorers 45 is indicated by dotted lines in Fig. 3, by reference to which the inward position of the respective scorers will be clearly understood.

Within the housing, comprising the swinging arm 39, each shaft 44 has attached thereto a pinion 46 meshing with an intermediate pinion 47 which meshes with a pinion 48 attached to the short shaft 38. Thus, each shaft 44 is geared to thecorresponding short shaft 38. thereto a pinion 49. The pinions 49 mesh with corresponding pinions 50 attached to a transverse shaft 51 rotatively journaled in bearings 52 supported by rigid side frame members 53.

The rigid side frame members 53 support a base 54 on which is mounted an electric motor 55. The shaft 56 of the motor has chain drive connection 57 with a sprocket wheel 58 attached to the shaft'51. shafts 44 are constantly rotated in the same direction when the motor 55 is running. By rotating the shafts 44 in the same direction, the inner peripheral portions of the scorers 45, at one side of the machine, move upwardly and the inner peripheral portions of the scorers 45, at the opposite side of the machine, move downwardly.

The shaft 51 has attached thereto a pinion 59 meshing with a gear wheel 60 attached to a shaft 61. A pinion 62 attached to the shaft 61 meshes with a gear wheel 63 attached to a shaft 64. The shaft 64 is a horizontal shaft and has attached thereto a pinion 65 meshing with a pinion 66 on the up- Each short shaft 38 has attached Thus the 27. The conveyor shafts 72 are operated at greater speed than the conveyor'shafts 27, so that the ice blocks will be moved from the .maohine faster than the ice :blocks aremoved into the machine. As shown, the gears 70 are of larger diameter than the gears 31 in order to rotate theshafts 72 faster than the shafts 27. e

Alink 73 has its upper connected with a pivot 74.0n the frame 18 andis formed with an opening 7 of sufficient size to receive the wheels 17 and24 so that the link .73'may be oscillated without contacting with said wheels. The lower end of the link 7 3 is connected with a pivot 76' supported eccentrically as a crank pin *by the eccentric wheel 77. The eccentric wheel 77 is attached to a shaft 78. The shaft64has attached thereto a spiral gear 79 (Fig. 4) meshing with a spiralpinion 80 loose on theshaft 7 8. Thus, the spiral pinion 80 is constantly rotated when the motor is running.

The invention comprises means for rotating the shaft 78 bythe pinion 80. The hub of the pinion is formed rigid with a cylindrical coaxial extension .81 having formed in its inner periphery an annular series of semicirculargrooves 82 (Fig. 5). Thepart 81 constitutes one member of a clutch. 'The other member of the clutch comprises a cylindrical part 83 keyed tothe shaft 78 and fitting within the part 81. The part *83 is formed with a radial flange 84 at the open end of the cylindrical member 81. A clutch member is supported by the keyed clutch member 83-84 for rockingmovements into and out of clutching engagement with the member 81. This clutch element is a pin comprising a cylindrical part 85 and aneccentric part 86. The eccentric part :86 is I of a length equal to'the length'of the-part 83 of the keyed clutch membersand the surface of "the part86 that'isclosest to theaxis of the pin is formed onthe same radiusof curvature as the part 83. Thus, when the clutch pin is turned to ineffective position, its outer surface is continuous with the outer peripheral surface of 'the part 83 and will not engage in the groove '82. But, when the pin 85 is turned to the position indicated by dotted lines'in Fig. 5,the part 86 thereof will engage in one of the grooves82, as clearly shown at the left of Fig. 5. Thus, the constantly rotating clutch member 81 is'clutched with the clutch member 8384 which is keyed on the shaft78. The shaft 78zwill thereby be rotated so long as this clutching engagement is maintained. This clutching engagement is maintained for exactly one revolutionof-the shaft 78, so that the frame 18 will be moved from and to its upper starting position, in which position said frame 18 is shown in Fig. 2 of the drawings.

The pin 85 has attached to the outer end thereof anarm 87. A spring 88 has one end connected with thearm 87 and the opposite end connected with an eyelet 89 attached .to-the flange84 of the keyed clutch member.

The power and energy of this spring 88 is exerted to turn the clutch pin 8586 in a direction and to an extent to engage the part 86 in any one of thenotohes 82 to set the clutch. The arm 87 is within a notch in the end of the flange 84, so that extent of movement of said arm' 87, and thereby extent of gurning movement of the pin 85, is limite i. 1

A rod 90 (Fig; 1) is mounted for rocking movements in a support 91 and has attached to its inner end an ,arm 92 formed on its free .end with a lateral projection 93. This rod 90 is capable of being turned from and to a starting position. 'When said rod 90 is initsstarting positionthe extension 93 of the arm 92 is in the path" of movement of the arm 87 Thus, when the clutch is engaged andithe member 83'is rotated thereby, the arm 87 will ;be carried around until it engages the extension 93. The slightest continued rotation of the clutch obviously will turn the pin 85 toa position in which the part 86 is disengaged from the grooves 82, thus permitting the clutch member 81 to con tinue to rotate while the clutch member 83 and the shaft.78remain stationary. The

rod 90-iscapable of beingturned to a position to move the extension 93 from engagement with the arm 87. When the extension .93 isdisengaged from the arm 87 the spring 88 immediately turns the clutch member 85-786 to position-in which the part 86 is in clutchingengagement with the clutch member "81, as before explained. 1

A lever 94 is attached to the outer end of the rod 90 and is capable of manual manipulation to control the clutch, as above described. The lever 94 is also capable of automatic. operation to control the clutch. A link 95 has its upper end pivoted to the lever 94 and its lower end pivoted to an arm 96 of a bell'crankjlever. The arm 97 of the bell crank lever has pivoted thereto the rear end of a link 98. The front end of the link 98 is pivoted to an arm 99 attached to one end of a rock shaft 100 supported below the plane ofthe upper edges of the conveyors. A spring 101 is connected with the upper end of the-arm 99 and with a stationary part of the machine and is effective to operate the connections described, so as :to move the abutment 93 into and yieldinglyretain said abutment93 in position to be engaged by the. arm 87', so as to release the clutch member 86 from engagement with the clutchelement 81.

A bail 102 (Figs. 1 and 2) is attached to the shaft 100 in a position in which it normally extends upwardly at an incline toward the exit end of the elevator, and in position to be engaged by the front end of the ice block moving into the elevator. The ice block moving into the elevator will engage the bail 102- and swing said bail upwardly and rearwardly, thereby rocking the shaft.

100. Rocking of the shaft 100 moves the abutment '93 from under the arm 87, Whereupon the clutch member 8586 .is immedi-. ately engaged. with the clutch member 81. lVhen the clutch member 8586 is engaged with the clutch member..81, as described, the shaft'78 is turned slowly, thus'operating the eccentric wheel77 and-moving the frame 18 downwardly. Downward move ment of the frame 18 operates the chains 13 and 21 and raises the elevator, as described. hen the elevator is raised, the ice block in the elevator is moved above and out of engagement with thebail 102, whereupon the spring 101 acts immediately to move the abutment 93 into position to be engaged by the arm 87 about the timethat the shaft 78 completes onerevolution. Thus, at the end of each revolution of the-shaft 7 8,the clutch is released. A complete revolution of the shaft- 7 8 makes a complete revolution of the cam disc 77 whichis effective to move the frame 18 from and to its starting position. Movement of the frame 18 from and to its startlng position moves the elevator and the ice block thereon upwardly and downwardly to the starting position of the elevator. Downward movement of the elevator causes the end of the ice block thereon to engage upon the bail 102 and move saidbail downwardly. This turning movement of the shaft 100 does not affect the abutment 93, because the connection 103 between the lever arm 96 and the link 95 permits this turning move ment of said shaft 100 without operating the clutch abutment 93.

It is known that these ice blocks are usually made tapering. It is desirable to score the ice blocks so that when broken into separate smaller blocks the said separate smaller blocks will be of approximately uniform size. Proper vertical scoring bythe scorers 45 is obtained by making the rear or inner end of the elevator slightly above or higher than the outer inlet end of the elevator.

During this movement from the machine ach ice block is scored horizontally by scorers 104 splinedon vertical shafts 105.; The verticalshafts 105 have on their upper ends pinions 106 meshing with the pinions 50. Accordingly, the ice block is scored horizontally is limited by supporting pins 112. The arms 110 have inward extensions 113 at their rear ends in position to be engaged by theupper edges of the ice blocks moving from the machine. The narrower ends'of the ice blocks are at the front, so that as the ice blocks pass uhder the inward extensions 113, said extensions 113 will be engaged by the ice blocks and raised a's-the wider portions of the ice blocks a pass thereunder. The scorers 104 are thereby raised approximately half the distance to which the arms 113 are moved, thus causing the scorers 104 to operate midway between the upper and lower edges of the ice blocks, irrespective of the taper of the ice blocks.

In operation the motor 55 is constantly running so that the conveyor devices, comprising the shafts 27 and 72, are constantly running. The shafts 72 are rotated at greater speed than the shafts 27, as described. The shaft 78 remains stationary because the clutch shown in Figs. 4 and 5 is disengaged. The scorers 45 and 104 are constantly operating. An ice block passing into the machine engages the bail 102 and thereby disengages the abutment 93 from the clutch arm 87, permitting the clutch to operate. The shaft 78 is therebyrotated and the chains 13 and 21 are operated effectively to raise and to lower the elevator. During upward movement of the elevator and the ice block thereon, the scorers 45 are held in. their outer positionsso that they will not contact :with the ice block. This is effected by the mechanism shown in Fig. 3, comprising a bifurcated slide 114 embracing the shaft 78 between its arms and also embracingbetween its arms a guide 115. A-

roller 116 onthe slide 114 engages in .a cam groove 117 in the-disc 77. 'Arms 118 project laterally from the slide 114 and are connected by links 119.with the housing members 39. The arrangement is such that when the shaft 78 is in its stopped or stationary position, the slide 114 is in its lower position, thereby causing the links 119 to hold the housings 39 inclined outwardly so that the scorers 45 are beyond possible contact with the ice block passing upwardly between said scorers. The earn 117 is arranged so that when the elevator. reaches extent of upward movement, the constantly rotating scorers 45 are swung inwardly into contact with the ice block. Duringvthe last half of the revolution of the shaft 7 8, the elevator islowered between the scorers 45 and, about the time that the elevator reaches its lowermost position and stops, the

U comprising an elevator for raising and lowercam 117 operates the slide 114: to swing the scorers 15 outwardly out of engagement with the ice block. Downward movement of the ice block operates the bail 102 and the conveyors thereby propel the ice block toward the exit end of the machine and between the scorers 104: which operate as described to score the ice block horizontally on opposite sides.

The device 102 may be disabled to prevent operation thereof by the block of ice so as to permit the block of ice to pass directly to the horizontal scorers 104 without being raised bythe elevator. The lever 94c may be raised and supported manually or otherwisein position to hold the extension93 of the arm 92 out of position to be engaged by the arm 87. This will prevent the arm 87 from engaging said extension 93. This raising of the arm 94: op-

erates the link 95 and thereby thebell crank lever 9697, the link 98, and the arm 99 in a direction and to an extent to hold the bail 102 downwardly and forwardly, so that the block of ice passing through the machine will pass over said bail 102. and will not operate said bail. Thus, .my machine comprises mechanism for raising and lowering-a block of ice, devices including the bail 102 controlled by the block of ice as an incident to the movement of the block of ice to the position to be raised for controlling operation of said mechanism, and means for preventing effective operation of said devices by the block of ice.

Thismachine may be widely varied within the scope of equivalent limits without departure fromthe nature and principle of the invention. I do not restrict myself in any unessential respects, but what I claim and desire to secure by Letters Patent is 1. A machine of the character described ing a block of ice, scoring devices, mechanism for operating said scoring devlces, and mechanism for causing sald scoring devices to score the block of ice during descent of the ice and for holding said scoring devices out of contact with the ice during upward movement of the ice.

2. A machine of the character described i comprising an elevator for raising and lowerfor holding said scoring devices out oi -contact with the ice during upward movement of the ice, and means for operating said second mechanism to disengage the scoring devices from the ice to permit the ice to move from the elevator. I

3. A machine of the character described comprising an elevator for raising and lowering a block of ice, constantaly running scoring devices, and mechanism for preventing said scoring devices from operating on the ice during ascent of the ice and for causing said scoring devices to score the ice during descent of the ice.

4-. A machine of the character described comprising an elevator for raising and lowering a bloclr of ice, constantly running scoring devices, and mechanism for preventing said scoring devices from operating on the ice during ascent of the ice and for causing said scoring devices to score the ice during descent of the ice and for disengaging the scoring device from the ice to permit the ice to be moved from the elevator.

5. A machine of the character described comprising an elevator for raising and lowering a block of ice, constantly running scoring devices, and mechanism controlled by the block of ice moving into the elevator for raising and lowering the elevator and for causing the scoring devices to score the ice during its descent.

6. A machine of the character described comprising an elevator for raising and lowering a block of ice, constantly running scoring devices, and mechanism controlled by the block of ice moving into the elevator for raising and lowering the elevator and for causing the scoring devices to score the ice during its descent and for disengaging the scoring devices from the ice to permit the ice to move from the elevator.

7. A machine of the character describedcomprising an elevator for raising and lowering. a block of ice, constantly running scoring devices, mechanism controlled by the block of ice moving into the elevator for raising and lowering the elevator and for causing the scoring devices to score the ice during its descent and for disengaging the scoring bloclr of ice during its descent, mechanism for moving the block of ice from the machine at greater speed than a block of ice is moved into the machine, and mechanism for scoring the block of ice during its movement from the machine.

9. A machine of the character described comprising an elevator for raising and lowering a block of ice, conveyor mechanism for moving a block of ice into said elevator, means for raising and lowering said elevator, scorers for scoring the ice during downward movement of the elevator, and conveyors for moving a block of ice from the elevator faster than a block of ice is moved into the elevator.

10. A machine of the character described comprising an elevatorfor raising and lowering a block of ice, conveyor mechanism for moving a block of ice into said elevator, meansfor raising and lowering said elevator, scorers for scoring the ice during downward movement of the elevator,-conveyors for moving a block of ice from the elevator faster than a block of ice is moved into the elevator, and scoring devices for scoring the ice during its movement from the elevator.

11. A machine of the character described comprising an elevator for raising and lowering a block of ice, conveyor mechanism for moving a block of ice into said elevator, means for raising and lowering said elevator,

scorers for scoring the ice during downward erin a block of ice a constantl runnin' motor, connections operative by said motor for raising and lowering said elevator, and devices controlled by the block of ice moving intosaid elevator to cause said connections to operate to raise and to lower said elevator, and means for stopping operation of said connections automatically and as an incident to'the operation of the elevator as aforesaid.

13. A machine of the character described comprising an elevator for raising and lowering a block of ice, a constantly running motor, connections operative by said motor for raising and lowering said elevator, devices controlled by the block of ice moving into said elevator to cause said connections to operate to raise and to lower said elevator,

I means for stopping operation of said connections automatically and as an incident to the operation of the elevator as aforesaid, mechanism for moving the block of ice from the elevator, and means for scoring the block of ice during its movement from the elevator.

14. In an ice scoring machine, conveyor devices for moving a block of ice into the machine, conveyor devices for moving a block of ice from the machine, and mechanism for operating said second conveyor devices to move a block of ice from the machine at greater speed than said first named conveyor devices move a block of ice into the machine.

15. A machine of the character described icomprising a series of constantly running scorers, mechanism for shifting said scorers from and to efiective positions, an elevator for raising and lowerin a block of ice, and mechanism for controlling said shift mechanism to prevent said scorers from operating on :the ice during upward movement of the ice and for causing said scorers to operate on the ice during downward movement of the ice.

16. A machine of the character described comprising a series of constantly running scorers, an elevator for raising and lowering a block of ice, mechanism for preventing said scorers from operating on the ice during upward movement of the ice and for causing said scorers to operate on the ice during downward movement of the ice, and means operated by the block of ice entering the machine controlling operation of said elevator. 1

17. A machine of the character described comprising a series of constantly running scorers, an elevator for raising and lowering a block of ice, mechanism for preventing said scorers from operating on the ice during upward movement of the ice and for causing said scorers to operate on the ice during downward movement of the ice, means operated by the block of ice entering the machine controlling operation of said elevator, mech anism for moving the block of ice from said elevator, and devices for scoring the block of ice moving from said elevator.

18. A machine of the character described comprising series of constantly running scorers, mechanism for raising and lowering a block of ice between said scorers, and mechanism for shifting said scorers to position to score the block of ice moving downwardly and to position to prevent said scorers from operating on the block of ice moving upwardly. r

19. A machine of the character described comprising series of constantly running scorers, a device for stopping a block of ice in a predetermined position between said scorers, mechanism forraising and lowering a block of ice between said scorers, mechanism for causing said scorers to score the block of ice during downward movement of said block and for preventing said scorers from operating on' the block of ice during upward movement of said block and for disengaging said scorers from said block after said block has been scored.

20. A machine of the character described comprising series of constantly running scorers, mechanism for raising and loweringa block of ice between said scorers, mechanism for causing said scorers to score the block of ice during downward movement of said block and for preventing said scorers from operating on the block of ice during upward movement of said block and for disengaging said scorers from said block after said block has been scored, mechanism for moving the block of ice from the machine, and scoring devices for scoring opposite sides of the block of ice moving from the machine.

21 A machine of the character described comprising a support for a block of ice, mechanism for raising and lowering said support and thereby the block of ice thereon, and mechanism for simultaneously scoring two sides of said block of ice during its descent while on said support.

22. A machine of the character described comprising a support for raising and lowering a block of ice, mechanism for raising and lowering said support while the block of ice is thereon, mechanism for simultaneously scoring two sides of said block of ice during its descent, and means for moving said block of ice in another direction than as aforesaid and scoring the block of ice transversely to the first mentioned scoring.

23. A machine of the character described comprising an elevator for raising and lowering a block of ice, a conveyor for moving the block of ice into and from the elevator, means for raising and lowering the elevator, scorers for simultaneously scoring two sides of the block of ice during downward movement of the ice and elevator, and scorers for scoring the block of ice during its movement by said conveyor.

24. A machine of the character described comprising scorers, power operated mechanism for effecting relative movement between said scorers and a block of ice to cause scoring of said block of ice by said scorers, means operated by the block of ice moving into the machine to cause operation of said mechanism, and means operating automatically after scoring of the block of ice as aforesaid for stopping operation of said mechanism.

25. A machine of the character described comprlsmg mechanism for ralsmg and lowering a block of ice, devices controlled by the block of ice as an incident to the movement of the block of ice to the position to be raised for controlling operation of said mechanism, and means operative to hold said devices in position to prevent efitective operation of said devices by the block of ice.

26. A machine of the character described comprising mechanism for raising and lowering a block ofice, mechanism for scoring said block of ice during its descent, devices operated to control efiective operation of said first mechanism by the block of ice as an in cident to the movement of the block of ice to position to be raised, and means operative to hold said devices in position to prevent effective operation of said devices by the block of ice.

27. A machine of the character described comprising mechanisms for forming intersecting score lines on opposite sides of a block of ice, and optional means operative to cause one of said mechanisms to remain unoperated while the other one of said mechanisms forms non-intersecting score lines on opposite sides of the block of ice.

28. A machine of the character described comprising mechanism for forming vertical score lines on opposite sides of a block of ice and another mechanism for forming horizontal score lines that intersect said vertical score lines, devices operated by the block of ice for controlling operation of said first mechanism, and optional means operative to preventv operation of said devices by the block of ice.

29. A machine of the character described comprising mechanisms for forming intersecting score lines on opposite sides of a block of ice, devices operated by the block of ice controlling operation of one of said mechanisms, and means operative to prevent operation of said devices by any selected block of ice and for positioning said devices for subsequent operation by any other block of ice.

30. A machine of the character described comprising an elevator for raising and lowering a block of ice, a movable actuator, connections operated by said actuator for operating theelevator distances greater than the movement of said actuator, and mechanism for scoring opposite sides of said block of ice during its descent.

31. A machine of the character described comprising conveyors for moving a tapered block of ice longitudinally, scoring devices for scoring said block of ice between its tapered ends, an element adapted to be engaged by one of the upper surfaces of the tapered block of ice and operated thereby, and con nections operated by said element for causing said scoring devices to score the block of ice approximately midway between its tapered sides during movement of the block of ice between said scoring devices.

32. A machine of the character described comprising conveyors for moving a tapered block of ice longitudinally, scoring devices for scoring the block of ice between its tapered sides, an element adapted to be engaged and operated by the upper surface of the block of ice, connections from said element for moving said scoring devices simultaneously with the movement of the-block of ice and causing said scoring devices to score the block of ice approximately midway between its tapered sides during movement of the block of ice between the scoring devices, conveyors for supporting and moving the block of ice between said scoring devices, and means for restoring said scoring devices to the positions from which they were moved as aforesaid.

33. A machine of the character described comprising scorers for scoring a tapered block of ice, and mechanism adapted to be engaged and operated by the upper side of the block of ice for causing said scorers to score the block of ice approximately midway between its tapered sides.

34. A machine of the character described comprising scorers for scoring a tapered block df ice, mechanism adapted to be engaged and operated by the upper side of the block of ice for causing said scorers to score the block of ice approximately midway between its tapered sides, and mechanism for moving the block of ice between said scorers for operation of said scorers as aforesaid.

JOHN H. SCHREIBER.