US11889A - Ferdinand davison - Google Patents
Ferdinand davison Download PDFInfo
- Publication number
- US11889A US11889A US11889DA US11889A US 11889 A US11889 A US 11889A US 11889D A US11889D A US 11889DA US 11889 A US11889 A US 11889A
- Authority
- US
- United States
- Prior art keywords
- dog
- drill
- catch block
- ferdinand
- davison
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241000282472 Canis lupus familiaris Species 0.000 description 32
- 238000009432 framing Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 241000306729 Ligur Species 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
Definitions
- This invention consists in a new and iniproved combination of parts for the purpose of catching hold of the drill bar or drill to attach it to the machinery by which it is lifted or drawn back, and of sett-ing it free therefrom to enable it to strike the blow, either by the force ofits own gravit-y or by force applied by springs or their equivalents properly arranged and attached for the purpose.
- A. is a framing of proper strength andproportions to receive any number of cylindrical drill bars, B, B, B, B, which are arranged side by side working in suitable guides.
- Each drill bar is furnished with a catch block C, of cast or wrought iron which is capable of sliding freely or turning on the drill bars.
- This catch block is slotted on one side to receive a dog D, which is pivoted to it by a pin a, connected at its tail e with a chain E, which passes over a pulley F, at the top of the machine, and connects with one I, of a series of cranks I, I1, I2, I3, on the driving shaft G.
- This chain by passing around a proper guide in the cat-ch block is made to act in such a way that when the dog is not under other control the Weight of the catch block draws the dog toward, and makes it bite, the drill bar, whose own weight further tightens the bite to enable the bar to be raised by the revolution of the crank.
- a trigger H which works on a pin Z
- this trigger serves as a guide to the chain E, and another part has an eccentric faced, which works inside the tail e, of the dog and in contact with the said tail which is slightly bent at the end to enter a notch f, above the eccentric.
- the tail of the dog is in contact with the face d, below theV more eccentric part, and is made to hold the trigger stationary; but just before the upward motion of the catch block terminates, the trigger comes in contact as shown in Fig.
- the invention is applicable to work the drill horizontally or in any other direction, but when the position is such that the gravity of the bar will not act to give force to the blow it will be necessary to apply springs or equivalent devices for that purpose and also to 'apply a spring or equivalent to the catch block to return it after drawing back the bar.
- Vhat I claim and desire to secure by Letters Patent is- The peculiar device for clamping and releasing the drills or drill bars consisting of the dog D to which the chain or itsequivalent is attached, and the trigger I-I, for locking and unlocking the same on the drill bar, said dog and trigger being constructed, combined and arranged Within the catch block C, substantially as described so that the latter locks the former at the termination of FERDINAND DAVISON.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
UNITED sTATEs PATENT oEEIoE.
FERDINAND DAVISON, OF PETERSBURG, VIRGINIA.
. STONE-DRILLING MACHINE.
Specification of Letters Patent No. 11,889, dated November 7, 1854.
To all whom t may concern.'
Be it known that I, FERDINAND DAvIsoN, of Petersburg, in the county of Dinwiddie and State of Virginia, have invented a new and useful Improvement in Machines for Drilling Stone; and I do hereby declare that the following is a full, clear, and eXact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1, is a front view of an upright drilling machine constructed according to my invention, and Fig. 2, a vertical section of the same. Fig. 3, is a top view of the catch block by which the drill is attached to the machinery for raising it, and Fig. 4, a vertical section of the same.
Similar letters of reference indicate corresponding parts in the several ligures.
This invention consists in a new and iniproved combination of parts for the purpose of catching hold of the drill bar or drill to attach it to the machinery by which it is lifted or drawn back, and of sett-ing it free therefrom to enable it to strike the blow, either by the force ofits own gravit-y or by force applied by springs or their equivalents properly arranged and attached for the purpose.
To enable those skilled in the art to make and use my invention I will proceed to describe its construction and operation.
In Figs. l and 2, A., is a framing of proper strength andproportions to receive any number of cylindrical drill bars, B, B, B, B, which are arranged side by side working in suitable guides. Each drill bar is furnished with a catch block C, of cast or wrought iron which is capable of sliding freely or turning on the drill bars. This catch block is slotted on one side to receive a dog D, which is pivoted to it by a pin a, connected at its tail e with a chain E, which passes over a pulley F, at the top of the machine, and connects with one I, of a series of cranks I, I1, I2, I3, on the driving shaft G. This chain by passing around a proper guide in the cat-ch block is made to act in such a way that when the dog is not under other control the Weight of the catch block draws the dog toward, and makes it bite, the drill bar, whose own weight further tightens the bite to enable the bar to be raised by the revolution of the crank. Above the slot in which the dog works, is placed a trigger H, which works on a pin Z), between two ears,
c, c, in the catch block. One part of this trigger serves as a guide to the chain E, and another part has an eccentric faced, which works inside the tail e, of the dog and in contact with the said tail which is slightly bent at the end to enter a notch f, above the eccentric. When the catch block is being drawn upward, the tail of the dog is in contact with the face d, below theV more eccentric part, and is made to hold the trigger stationary; but just before the upward motion of the catch block terminates, the trigger comes in contact as shown in Fig. 2, with the upper part of the fraining A, or with some fixture attached thereto, and a very slightly continued upward motion serves to move the more eccentric part of its face (Z, into contact with the tail of the dog and throw it back far enough to set free the drill bar which then falls. The catch block ascends far enough after setting free of the drill bar to bring the tail of the dog into the notch f, as shown in'Fig. el., During nearly the whole time of the descent of the catch bar, which is lowered by the ascent of the crank to which the chain is connected, the trigger remains by reason of its weight, in the position shown in Fig. 4, and holds the dog free of the drill bar, but just before the descent terminates the trigger comes in contact with a fixed stop la, on the lower part of the framing and the remainder of the downward motion is suflicient to release the tail of the dog from the notch and throw up the trigger far enough to bring the lower or least part of its face CZ, opposite the tail of the dog, and thus leave the dog entirely under control of the chain E, when the catch block ascends. In Fig. 2, one of the triggers is shown as just having reached its stop 7i., and being about to liberate its dog. The whole of the working parts of the machine are actuated by the revolution of the crank shaft G, and consequent raising and lowering of the catch blocks by meansvof the chains connected with their dogs. The turning of each drill bar is effected by means of a stud z', attached to its catch block and working in an oblique guide j, secured permanently to the framing. The drills being set entirely free every time they strike, are self feeding.
The invention is applicable to work the drill horizontally or in any other direction, but when the position is such that the gravity of the bar will not act to give force to the blow it will be necessary to apply springs or equivalent devices for that purpose and also to 'apply a spring or equivalent to the catch block to return it after drawing back the bar. f
I do not claim the invention of a clamp or catch block constructed to move reely alongfthe drill in its descent but to grip it in its ascent, as such clamps are in common use. But
Vhat I claim and desire to secure by Letters Patent is- The peculiar device for clamping and releasing the drills or drill bars consisting of the dog D to which the chain or itsequivalent is attached, and the trigger I-I, for locking and unlocking the same on the drill bar, said dog and trigger being constructed, combined and arranged Within the catch block C, substantially as described so that the latter locks the former at the termination of FERDINAND DAVISON.
Witnesses I. W. CooMBs7 J os. GEO. MASORE.
Publications (1)
Publication Number | Publication Date |
---|---|
US11889A true US11889A (en) | 1854-11-07 |
Family
ID=2072227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11889D Expired - Lifetime US11889A (en) | Ferdinand davison |
Country Status (1)
Country | Link |
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US (1) | US11889A (en) |
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0
- US US11889D patent/US11889A/en not_active Expired - Lifetime
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