US1575308A

US1575308A - Drilling machine

Info

Publication number: US1575308A
Application number: US674200A
Authority: US
Inventors: Harley C Alger; Raymond E Ackley
Original assignee: RR Donnelley and Sons Co
Current assignee: RR Donnelley and Sons Co
Priority date: 1923-11-12
Filing date: 1923-11-12
Publication date: 1926-03-02
Anticipated expiration: 1943-03-02

Description

March 2 1926.

H. c. ALGERE-r AL DRILLING MACHINE Filed Nov. l2,

vMarch 2 ,1926.

H. C. ALGER ET AL DRILLING MACHINE Filed Nov. l2,

March l2 1926. 1,575,308 H. c. ALGER ET AL f v DRILLING MACHINE Fired Nov. 12, 192:5 a sheets-'sheet linx Vzw@

um w o @QE March 2 1926.

\ f l1,575,308 H. C. ALGER ET AL DRILLING MACHINE Filed Nov. 12, 1925 March 2,1926. 1,575,308

H. C. ALGER ET AL DRILLING MACHINE Filed Nov. l2, 1923 8 Sheets-Sheet 5 *Yvn l/ Q-Mfaw fm@ March 2 1926.

H. c. ALGER ET AL,

DRILLING MACHINE Filed Ney. 12 `8 sheets-sheet e March 2 1926.

H. C. ALGER ET AL DRILLI NG MACHINE Filed Nov. 12, 1923 a sheets-'Sheet v 1 lhlllilllllllllllblll HIIIIII IIH March 2 1926.

H. C. ALGERl ET AL DRILLING MACHINE sheets-sheet a Filed Nov. l2Y 1925 y f. C Mg y, @i f .79@ Z i Passati Manz, '1926.

isisgms UNITED STATES PATENToFFicE.

HABLEY C. ALGER AND RAYIOND E. ACKLEY, F '(.iIIIICAC-IO, ILLINOIS, ASSIGNOBS T0 E. B. DONNELLEY a SONS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

Damme momma Application led November 12, 1923. Serial lo. 674,260.

To all whom z't may concern.'

Be it known that we, HARLnY C. and RAYMOND E. ACKLEY, citlzens of the l0 drilling holes lin the corners of telephonebooks and the like so that a string may be inserted for suspending. thev book from a hook.

This machine will operate either as an independent machine under its own power, or in timed relation, to and operably connected with a trimming machine of the type usually called a Rowe trimmer and o the construction described in United States Letters .I Patent No. 1,003,679, granted to' Thomas C. Welch, September 19, 1,911.

It has been the practice hitherto to drill books on small independent machines, which are usually fed by hand, one book at a time,

and the drill fed by a foot treadle. In order to provide a drilling capacity equal to the production of a Rowe trimmer, which trims and discharges from twenty to twentytive piles of books per minute, it is necessary to provide several of these small machines tribute to the small drills.

It has also been the practice in drilling 3.5 books to drill only from one side, usually the top, which not vonly limits the rate of production `but makes it necessary to employ cutting strips or bars of wood or fibre into which the drill penetrateslightly at the end of its stroke in order to obtain a smooth hole at the point where the drill .emerges from the book. These stri s have to be frequentJ ly moved and a fres isurface presented to drill against.

An object of our invention is to provide a machine having a large productive capacto take books from the trimmer and disity, and particularly one which will drill4 piles of books as they come from a trimming machine, at substantially the same rate of 60 production.

Another object is to provide a machine which will receive, drill and discharge books or piles of books automatically.

Another object is to provide a machine which may be operated either as an entirely independent and self-contained machine, or may be connected to and driven from a trimming machine, in such a manner that books are discharged directly from the trimming machine Yinto the drilling machine without the necess'ty of any intermediate handling.

A further object is to machine which will be readily adjustable for various sizes of books and heights of piles. Y

These and other objects are accomplished by our invention which is full described in the following-specification andY shown in the accompanying drawings in which:

Figure 1 1s an end elevation of a machine 70 embodying the invention; Fig.- 2 is a plan view of the same;

Fig. 3 Ais a rear elevation; i

Fig. 4 is a horizontal section on the line 4 4 of Fig. 3; l 75 Fig. 5 is a vertical section on the line 5--5 l of. Fig. 4;

Fig. 6 is a section of Fig. 5;

Fig. 7 is an enlarged section through the `8" rovide a drillingv taken on the line 6.-'-6

vmotor pulley taken on the line 7--7 of Fig. each with an operator, and also several men 4' Y 7 l Fig. 8 is a partial enlarged section on the l1ne 8-8 of Fig. 5;

Fig. 9 is an enlarged section showing the 35 machine in the operation of drilling books andnear-the completion of that operation;

Fig. 10 is an enlarged perspective of the drill plate which supports the books being drilled; 9

Fig. 11 is an enlarged partial section through the books showing the drills completing the drilling operation;

Fig. 12 is a plan view of the table of the machine;

Fig. 13 is a longitudinal section on the line 13-13 of Fig. 12;

Fig. 14is an enlarged section on the line 14--14 of Fig, 13; I

Fig. 15Vis `a partial section showing the 100 mechanism for operating the foot which lholds the `work while drilled;

Fig.v 16 is an enlarged partial section for part of this xnechanlsm;

y Fig. 17 is a partial lan v1ew on the line 17-17 of Fig. 16; v

Fig. 18 is a horizontal section on the line 18 of Fig. 16; and f Fig. 19 is a 'partial section'viewedonvthe 'line 19-19 of Fig. 4;

The invention as illustrated comprises a table 20 carried

b supports

21 and 22 which are secured to a ase 23. The table 20 has bearings 24 in which is journaled a` shaft 25. This shaft carries "a pulley 26 over which passes afbelt 27 which passes horizontally over the top of the table ,20 andl around .a pulley 28 which is carried by 'a shaft 29.l This shaft vis journaled in bearings 30 v which are adjustably secured by means of cap screws 31. v

The shaft 25 is driven by means of' -a sprocket keyed thereon, a chain 33 and a sprocket34 Awhich is keyed on a shaft 35 which is journaled in suit-able bearings which is carried by the base 23 as shown in Figs. 4 and 5. This shaft ma be driven from either of two sources (a the sprocket 36 which is keyed thereon and which is driven vby means of a chain 37 as shown in Fig. 3

l from a sprocket on the Rowe-trimmer as 30 will later be explained or.(b) by means of the wormv wheel 38 which is keyed to the bushing 47 which may be pinned to the shaft 35, as will later be explained, and is driven by the worm 39 o n the shaft 40 which is placed in axial alignment with the motor I shaft 41 of the electric motorv 42 vas shown in Fig. 7

When it is desired tovdrive the o erating mechanism of the drilling machine rom the electric motor, the flange 43 (see Fig. 72 secured to the iiange 44 of the belt pu ley on the motor shaft 41 by means of one -or vmore bolts 45. At the same time the chain 37 is removed from the sprocket 36 and can otherwise be operatively disconnected fromA the shaft of the drives it. K

In case lit is desired to drive the 4drill operating mechanism from the trimmer so that the two will be in step, the drilling Rowe trimmer which `machine serving to drill' each pile of books 38 as shown in Fig. 8,` so as' toA permit the worm wheel 38 to remain stationary while the shaft 35 is turned.

In either case the motor 4 2 i's in operatior and drives the pulley 48 by means of the belt 49. The pu ley 48 is keyed to the shaft 50. This shaft carries a pulley .51 over 1,575 sos l' which operates a round belt 52 which passes overidler sheaves 53 and around a sheave 54 of the drill spindle 55. The lower end of this drill spindle which is journaled in a verticallyI adjustable sleeve 56 carries a drill chuck 57 which is adapted to hold a drill 58 inl axial alignment with the drill spindle 55. Slmllarly a drill 59 is held by the drill Ychuck 60 on the drill spindle 61, the drill 59-opposinglthe drill 58 and being in axial alignment t erewith.

:The spindle 61 is journaled in a vertically ,A adjustable sleeve 62 which like the similar sleeve 56 is raised and lowered-as will later beexplained. The spindle "6l is driven by means of the sheave 63 (Fig. 3) and a round belt 64 which passes over the idler 65 and around the sheave 66.

For raising and lowering the upper drill 58, we have provided on the sleeve 56 a series of teeth formin a rack 56a which are engaged by an idler pinion 67. This pinion 1s driven by a ear sector l'68 which is plvotally mountc at 69, the gear sector bemg operated by means of a rod 7 O which is pivotally connected by a lever 71 which is fulcrumed at 72. This lever carries a roller 73 which rides on the face of the cam 74, the cam being carried by a shaft 7 5 which is journaled in suitable bearings in the

supports

21 and 22, and which is driven by means of bevel gears 76, and a, bevel gear 77 on Vthe shaft 35. As the shaft 75 revolves the cam follower 73 which is held against the cam 74 by means of the tension spring 78 follows the'cam 74 and causes the sleeve 56 to be raised and lowered while the drill 58 is driven at high speed as has been previously explained.- y

At the Asame time the sleeve 62 is raised .and lowered by a similar mechanism by aslee\fe 62 having a rack 62 formed thereon which engages an idler pinion 79 which inturn meshes with the gear sector 80 which is pivotally mounted on a pin 8l, the opposite end of the sector being connected through the rod 82 with the lever arm 83 which vis fulcrumed at 84. The end of this lever arm carries a cam follower 85 which is held against the cam 86 by means of a spring 87.

These cams are so timed as to cause the

drills

58 and 59 to be withheld from the path of the books during the time these piles 'are being moved into drilling position as will later be explained. As the-cams 74 and 86 operate to cause the drills` to approach each other, the drill 58 is advanced more rapidly than the. drill 59 and having reached av maximum depth is withdrawn while the drill 59 follows it so that the end lof the drill 59 enters the hole previously made by the drill 58., thus insurin that the hole will be driled through the ooks. This is shownin the position 'of the drills `tially cna level with the top of t 'upn a hollow tube 91 which is slidably mounted in guideways 92 and 93. The lower end of 'this 'tube is pivotally connected by rods 911 with a cam follower by lever 95 upon which is pivotally mounted a cam follower 96. The end of thel lever 95 is fulcrumed at 97. The cam follower 96 is held in contact with the cam 98 by means of a l the books as has been previously ex lained.

s rino 99 so that during a portion of each riivoliition of the cam 98 which is keyed to the shaft 35. the foot 90 is firmly pressed upon the top of the pile of books A.A This is` so timed that the foot is pressed down dui'- ing the time the drills are passing through Referring to Fig. 17, it'will be o served that the foot 90 has a narrow portion 90 which passes through a 'slot 100 in the tube` 91 and the enlarged inner portion 901 threaded to receive the screw 101 which is secured to the tube 91.u By means of this screw the height of the foot 90V may be nicely adjusts The books as viewed in Figs. 12 and 13 have a tendency to move from left to right because of the belt 27. As the books are carried on the table 20 the pile. A en` counters the stops 102 which are vcarried by the U-shaped bar 103 at its U which are hingedly secured at 104. A link 105 is pivotally connected near the center of the bar 103, the opposite end being pivotallv a `connected to the lever 106 (Fig. 19) which is fulcrumed at 107. This lever carries a cam follower 108 which rolls upon the face of the cam 109 which is keyed to the shaft 35. The U-bar 103 also carries a link 110 which is pivotally connected to a lever 111, the" latter being fulcrumed at 112. The

4- outer e'nd of the lever 111 has a slot 113 adapted to receive a pin 114 carried by a rod 115 which is slidable in a guide 1 16. One of these guides is placed at each side of the belt 27 and serves to stopthe books at A where they are in position to be drilled. The motion of the cam is such as t0 permit the books A and A' (Flg 3) to4 move forward when the

stops

102 and 115 are withdrawn within the table on the continuouslytravelingl belt 27, the stops again rising as the pile of books pass over the stop a ainst whichit is now resting, the

ile A ein then stopped at the position A h nda new iile'of books which has been fed to the'belt 27 is then brought to the position A when it is brought to rest by the stop 102.

- At the same time the books A are pressed against the stops 115 by ingers 117 which are mounted on the shaft 118 which is rotated by the rod 119 which is connected to the lever 106. The spring 120 lholds thev shaft 108 against the ace ofthe cam 109.

In order to insure that the books A will be held squarely against the end guide 121, we have provided a movable plate 122 which is held by blocks 123 which lie in guide grooves 124. This plate has an arm 125 which'is pivotally mounted by a -lever 126 which is carried by a shaft 127. This shaft (Fig. 19) has a bevel gear 128. Thisl gear meshing-with a bevel 129v which is carried by a shaft 130, this shafthaving av lever 131-is connected to a rod 132 the opposite end of which is bifurcated at 133, the bifurcated ends straddling the shaft and being guided thereon. The rod 132 carries Ya roller 134 which rides on the face of the cam 135 which is ke ed to the shaft 35. It

will be understood rom the foregoing that as the shaft 35'rotates the lever 131 will be moved -up in the position shown in Fig. 19,

thereby causing the movable im ress the pile of books A l against the guide 121. The foot 90 is then pressed down upon the pile of books A. firmly holding them in position while the. drills 58 and 59 pass through them as hasbeen reviously explained. An exhaust pipe 136 p aced near the drill 58 removes the smoke and dust plate 122 to f which is caused by the high speed drill i passing rapidly through the books. The drills are then withdrawn, the foot 90 raised, the

stops

102 and 115 lowered thereby permitting the books to move forward ,until the pile A now'held by the stop 102 is held against and brought to rest by the stop -115,w'hen the cycle of operation is repeated. The pile of books A released by thestops 115 are carried forward by the belt 27 until they are picked up by the twin belts 137 (Fig. 2) which convey them to the distributing table. Q

In Fig. 2 is also shown at the left end of the ligure a Rowe trimmer having twin belts 138 which pass over pulleys 139 on the shaft 29. Inl this way and by driving the shaft 35 by means of a chain 37 from a sprocket on the Rowe trimmer as' has been previously explained, the drillin mechanism is placed in step with the cutting operation with the Rowe trimmer so that the books will pass `through from the Rowe trimmer to the drilling mechanism and be automatically drilled as has been ex lained herein and will pass on tothe distributing tabli, all without the assistance of a human pile of paper While we have shown and described cer- 13 modifications.

tain embodiments of the invention, it is to be understood that it is capable of many Changes therefore in the constructionand arrangement may be made withoutdeparting from the spirit and scope slips beneath said object, a drill, and means forfeeding said drill .into said ob'ect and withdrawing" said drill while sai object is held stationary, said interrupting and holding means releasing the object after said drill is withdrawn so that the object is again free tomove with the conveyor.

2. In a drilling machine, the combination of a continuously moving conveyor having a substantially fiat surface ada ted to carry objects resting thereon, means or-interrupting the motion of and holding stationary an object resting thereon while the conveyor slips beneath said object, adi-ill, means for feeding said drill into said object and withdrawing said drill While said object 'is held statonary, said interrupting and holding means releasing the object after said drill is withdrawn so that the objectA is again free to'move with the conveyor, said object overhanging the edge of said conveyor, and a clamp adjacent said drill and at oneside of said conveyor, said clamp being o rative to hold said object during the drilling operation.

3. In a drilling machine, the combination of a continuously moving conveyor having a substantially flat surface ada ted to carry objects resting thereon, means or interrupting the motion of and holding stationary an object resting thereon while the conveyor slips beneath said object,wa drill, means for feeding said drill into said object and withdrawing said drill while said object is held statonary, said interrupting and holdn means releasing the object after said dril is withdrawn so that the object is again free to move with the conveyor, said object overhanging the edge of said conveyor,'a clamp' adjacent said drill and at one side of said conveyor, said clamp being operative to hold said object during the drilling operation, and means for operating the several before i mentioned means, and said clamp in timed relation to each other.

4. In a drilling machine, the combination of a. continuously moving conveyor having a 'substantially Hat surface adapted to carry objects resting thereon, means for interrupt- 4 ing the motion of and holding stationary an obj ect resting thereon while the convfyor slips beneath sai object, a drill, means or feeding said drill into said object and Withdrawing said drill while said object is held stationary, said interrupting and holding means releasing the object after said drill is withdrawn so that the object is again free l to move with the conveyor, said object overhanging the ed e of said conveyor, a clamp adjacent said conveyor, said clamp being o erative to hold .said object durin ri l the ing operation,

and continuously riven cams for operatingrill and at one side of said f the several before mentioned means, said.' f drill, and 'said clamp in timed relation-to..

each other.

an edge of the conveyor w ile held bysai stops, continuously driven drills -in axial alignment, one above and one below said object, cam means for forcing said drills into said object, and means for operating said stops,` said gripping means and said cam means in timed relation to each other. I

(i. In a drilling machine, a continuously moving conveyor, stops 's aced apart-along said conveyor and movab e into and out` of the path of objects carried bythe conveyor in timed relation to each ot 1er so that an object released bythe first stop is hel'dby` the second, means adapted to grip a portion of said object overhanginfr an edge of the.v conveyor while held by saidystops, continu@ ously driven drills in axial alignment, one

above and one below said object, cani means "a for forcing said drills into said object, and- I* i means for operating said stops, saidf'grip'- ping means and said cam means in timed relation toeachother. .j ,j

'i'. 1n a drilling machine,''a continuously moving conveyor, stops spaced apart along' lio said conveyor and movable into and out of the path of objects carried b -`the conveyor in timed relation to each 'et er so that an object released by the 'first stop is held by the second, `means for accurately positioning said object, means'adapted to grip a portion of said object overhanging anedge of the conveyor while held by said stops,` continuously driven drillsirr axial alignment, one above and one below said object, cam means for forcing said drills'v into f said object, and means fon operating said stops, said gripping means and saidcam means in timed relation to each other."v

8. In combination, a machine for drilling-V" i i piles ofbooks, a conveyor for feeding ilesof books to the machine,said machine aving mechanism for (holding said piles of 1.3()

1,575,sos

said means being operated at regular intervals and in timed relation to each other.

9. In combination a machine for drilling mechanism for holding saidpiles of books,-

and means for drilling said piles of books While so held, said mechanism and said drilling means being operated in timed relation to each other. v

l0. In a drilling machine, the combination of a continuously moving conveyor having a substantially flat surface adapted to carry objects resting thereon, means for interrupting the motion of and holding stationary an object restingv thereon while the conveyor y slips beneath said object, a drill, means adjacent to the drill'for clamping said objects'p'ZD j in position while being drilled. v

11. In a drilling machine, the combination of a continuously moving conveyor having a' substantially flat surface adapted to carry objects resting thereon, means for interrupting the motion of and holding stationary an object resting thereon while the conveyor i slips beneath4 said Object, a drill, means adja- `cent'to the drill'for clamping ysaid ob'ectV in grlpping 30' position while being drilled, said means having means for guiding said drills.

HARLEY c. Algerian'. s RAYMOND, E. AoKLEY.