US100756A - Improvement in rock-drilling machines - Google Patents
Improvement in rock-drilling machines Download PDFInfo
- Publication number
- US100756A US100756A US100756DA US100756A US 100756 A US100756 A US 100756A US 100756D A US100756D A US 100756DA US 100756 A US100756 A US 100756A
- Authority
- US
- United States
- Prior art keywords
- improvement
- rock
- drilling machines
- frame
- sash
- 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
- 238000005553 drilling Methods 0.000 title description 2
- 238000009877 rendering Methods 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 "n the intel-position of springs, placed around 'upwardly-projecting rods, be-
- A is the frame, and L HH, the foot-blocks, to which the frame is jointed,
- the sash is connected by a bar, d', with a lever, d, whose fulcrum is at d on the top of the frame A, and whose oflceis to lower the sash, soas to compress force on the drills'.
- sidc,f i n suitable R. S. EDWARDS.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
' iiniid giedre @anni @Win12,
@aA-00B HART, or SAVANNAH, MISSOURI.
. Y Leners Para: No, 100,756, dated Match 15, 1870.
` y IMPROVEMENT 1N RoCx-DRILLING MACHINES.
The Schedule referred to in these Letters Patent making part of the same To all whom it may concern Be it known that I, JACOB HARTof Savannah, in the State of Missouri, have invented anew and use.n ful Improvement in Rock-Drills and `I do hereby i declarethat the following is a full, clear, and exact description of the same, reference being had to the accompan ying drawings and lett-ers of reference marked thereon making a part of this specification, in which- 1 Figure 1 is a frontelevation.
This invention consists "n the intel-position of springs, placed around 'upwardly-projecting rods, be-
'tweenvthe foot-pietav of the sliding sash and a crossbar of the main 7fra1ne,`for the purpose of rendering supptrtin sustaining the sliding sash, and assistance in raising it after it has been oncelowered.
To enable those skilled in theart to make and use my invention, I now proceed to tion and operationl l Similar letters in the'drawings refer to like parts.
A is the frame, and L HH, the foot-blocks, to which the frame is jointed,
describe its construcf the inclination of the former to the latter being controlled by semieircular arr'ns G' and set screws, in a common and well-known manner.
f The frame A'bears ,on its Ifront ways,and used for rendering the drills noperativeat pleasure. Y
The sash is connected by a bar, d', with a lever, d, whose fulcrum is at d on the top of the frame A, and whose oflceis to lower the sash, soas to compress force on the drills'.
A rack, da, retains the lever d in the it is lowered.
What I claim as my invention is he combination of the frame A, sash B, rods a', and
place to which Witnesses:
JACOB HART.
`ABRAM DoBBs, i
sidc,f i n suitable R. S. EDWARDS.
placed around rods 11" to each drill, sliding horizontally in `suitable guidethe springs b', and cause them to act with greater springs a, in the manner and for the purpose explained.,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US100756A true US100756A (en) | 1870-03-15 |
Family
ID=2170221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US100756D Expired - Lifetime US100756A (en) | Improvement in rock-drilling machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US100756A (en) |
-
0
- US US100756D patent/US100756A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US100756A (en) | Improvement in rock-drilling machines | |
| US93517A (en) | Mary e | |
| US104288A (en) | Improved crib and cradle | |
| US102656A (en) | Improvement in slate-frame clamp | |
| US405537A (en) | Staple-driver | |
| US102547A (en) | Improved weather-strip | |
| US6470A (en) | Machine for jointing staves | |
| US109918A (en) | Improvement in ironing-tables | |
| US101908A (en) | Improvement in hinges | |
| US94227A (en) | Improved pastry-roller | |
| US330357A (en) | Marshall arthur wier | |
| US119050A (en) | Improvement in sash-holders | |
| US101107A (en) | Improvement in machine for wiring window-blinds | |
| US79103A (en) | Moses calvert | |
| US98146A (en) | Improved spring-bed bottom | |
| US99611A (en) | Improvement in mechanical movement | |
| US95703A (en) | Improved apparatus for imparting age to whisky and other spirits | |
| US92046A (en) | Improvement in farm-gates | |
| US117875A (en) | Improvement in shingling and slating brackets | |
| US107258A (en) | Improved table | |
| US95672A (en) | Improved stone-drill | |
| US107616A (en) | Improvement in door-springs | |
| US119191A (en) | Improvement in clothes-driers | |
| US102001A (en) | Improvement in sheet-metal-bending machine | |
| USD4510S (en) | Design for a coal-box |