US641175A - Hydraulic punch. - Google Patents

Hydraulic punch. Download PDF

Info

Publication number
US641175A
US641175A US71745299A US1899717452A US641175A US 641175 A US641175 A US 641175A US 71745299 A US71745299 A US 71745299A US 1899717452 A US1899717452 A US 1899717452A US 641175 A US641175 A US 641175A
Authority
US
United States
Prior art keywords
rail
ram
head
jaw
tool
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
Application number
US71745299A
Inventor
Carl Wigtel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US71745299A priority Critical patent/US641175A/en
Application granted granted Critical
Publication of US641175A publication Critical patent/US641175A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/243Perforating, i.e. punching holes in profiles

Definitions

  • n1 MORRIS "Tins 06,. rno'mvumo., wAsHlNomn, u. t:4
  • This invention relates to improvements in hydraulic punches by which holes are punched in the rails of electric railways preparatory to bonding the rails; and the object of the invention is to provide a tool by which suitable holes may be readily punched in the bases of the rails after as wellas before the rails have been permanently laid.
  • zo Figure 1 is a partly-sectional elevation of this punching-tool and a cross-section of a T-rail and illustrates the relation of the tool to the rail when the tool is in use;
  • Fig. 2 a plan of the tool, and
  • Fig. 3 a cross-section of a T-rail with a bond secured thereto.
  • a line of i ⁇ rails or girderrails may be bonded more conveniently, effectively, and durably than by the common practice, in which the bonds are secured to the webs of the rails.
  • the body of this punch is a steel casting composed of the short hollow cylinder 1, the head-block 2, the fixed jaw 3, and the back 4, the main part of the back being hollow and there being an opening from the hollow 40 part of the back to the top of the cylinder 1.
  • This cylinder is at the bottom, and the headblock 2, which is also a hollow cylinder, is at the top, of the body.
  • the cylinder 1 is in front of the prolonged axis of the cylinder 2 and is inclined backward from the bottom to the top, its prolonged axis and that of the cylinder 2 making with each other an angle which is equal to that made by the upper surface of one side or" the base of a T-rail or girder-rail 5o with the bottom of the rail.
  • the bottom of the cylinder 1 is closed by a ⁇ screw-plug 10 and made tight by packing 11.
  • the head-block 2 In the head-block 2 is fixed the head 5, the joint being made tight by packing 50.
  • the head contains a pump that is operated by a handle 51, of which only a fragment is shown.
  • the interior of the head is connected with that of the cylinder 1 by a water-passage 52, shown mainly by dotted lines.
  • the cylinder 1 contains a ram 6, and on the rain is the punch 7.
  • the jaw 3 projects in front of the headblock 2, back 4, and prolonged axis of the cylinder l, but only far enough beyond that axis to render the jaw capable of properly holding the die.
  • the face of the jaw is parallel to that of the ram 6.
  • a passage 31 extends through the jaw on the prolonged axis of the cylinder 1, and in the face of the jaw is fixed the die 8.
  • the interior diameter of the die is greater than the diameter of the punch.
  • the front and upper surface of the jaw is curved and slopes backward to the headblock 2 to allow the jaw to pass freely under the head of the rail and to rest supported by the die on the base of the rail, that being the position of the jaw when the tool is operated.
  • a pair of hooks 9 holds the tool in itsI proper position on the rail, the weight of the tool being sustained by the base of the rail, on which the tool hangs by the jaw 3.
  • These hooks are hinged to the head-block 2 and engage the rail, as represented in Fig. 1, and they confine the tool to the rail, since they overcome the force of its center of gravity, which being behind the die tends to draw the upper part of the tool backward away from the rail.
  • a hole is dug in the ground under the rail, if necessary, to make room for the lower part of the tool.
  • the head 5 is vertical, as it should be to secure the proper actionof the pump, and that the axis of the ram, punch, and die is inclined to a vertical plane at an angle which is equal to that made by the top of one side of the base of the rail with the bottom of the rail, and that the axis or prolonged axis of the punch is at right angles to that part of the upper roo izasurface of the base of the rail with which the die is in contact.
  • the punch is actuated by pumping water through the passage 52 into the cylinder l, the punch being driven by the ram through the base of the rail 12.
  • a tapering hole 13 is thus made in the base of the rail, the diameter of the hole at the bottom being the same as that of the punch and its diameter at the top being the same as that of the interior of the die.
  • the slug flies up through the passage 31 out of thejaw 3.
  • the ram which is commonly held up by the friction of the punch in the hole, is pried down bya bar pushed through the opening et() from the back of the tool.
  • the rivets of the bonds are inserted in the holes made by this punch in the bases of the rails, all parts 'of the bonds except the stems of the rivets being underneath the rails, where they do not interfere with the fish-plates or other rail-fastenings and where they are practically safe from injury, and the bonds are secured to the rails with the riveting-tool, which crushes and spreads therivets within theholes, so that each upset rivet 14 conforms perfectly from its head upward to the shape ot' the hole and is tightly fastened therein.
  • This not only renders secure the attachment of the bond to the rail,but it effects a superior contact between the rivet and the rail, the surfaces of contact being more than commonly large and the contact being very tight throughout the whole extent of those surfaces.
  • the upper end of the rivet is depressed slightly below the top of the base of the rail to prevent the rivet from being subjected to any pressure or blow which might tend to loosen it.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a fixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; a die in the face of the jaw; a pump; and a water-passage extending from the pump to the cylinder containing the ram; the tool having its center of gravity behind the die, when the face of the die is in contact with the top ot' the base of a rail of a railway, and the tool being provided with means for connecting it at a point or points above its center of gravity with the rail; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head outhe upper part of the body a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch, the jaw containing a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool having its center of gravity behind the die, when the face of the die is in contact with the top of the base of a rail, of a railway,
  • a hydraulic rail-punching tool comprising the combinationof: a ram in the lower part ofthe body; a punch on the ram; a ixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; a die in the face of the jaw; a pump; and a water-passage extending from the pump to the cylinder containing the ram; the tool having its center of gravity behind the die, when the face of the die is in contact with the topof the base of a rail of a railway, and the tool being provided with a hook or hooks hinged to the upper part of the body and properly fashioned to engage the head of the rail; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch, the jaw having a sl ug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face of the die in contact with the upper surface of one side of the base of the rail; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram; a water-passage extending from the head to the cylinder containing the rain; axed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face ot the die in contact with the upper surface of one side of the base of the rail; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind IOO ICS
  • the axis of the ram and the axis of the ram' being inclined to that of the head from the bottom of the raln upward at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom or" the rail; a water-passage extending from the head to the cylinder containing the ram; a iixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; substantially as described.
  • a hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram, and the axis of the ram being inclined to that of the head from the bottom of the ram upward at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom of the rail; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged 'axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face of the die in contact with the upper surface of one side of the base of the rail; substantially as described.
  • Ahydraulic rail-punching tool comprising the combination of: a ram in the lower part ofthe body; a punch on the ram; a head on the upper part ofthe body; a water-passage extending from the head to the cylinder containing the ram; a iixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; lthe tool being provided with a hook or hooks hinged to the upper part of the body and properly fashioned to engage the head of a railway-rail, when the face of the die is in contact with the upper surface of one side of the base of the rail; substantially as described.
  • a hydraulic railpunching tool having its body composed of the cylinders 1 and 2, the fixed jaw 3, and the back 4, the axis of the cylinder l being inclined to that of the cylinder 2 at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom of the rail, and the jaw 3 projecting in front of the prolonged axis of the cylinder 1 and having a slug-passage extending through it on that axis, and the tool comprising the combination of a ram in the cylinder l; a punch on the ram; a head with its lower end in the cylinder 2; a water-passage extending from the head to the cylinder l; and a die in the face of the jaw 3; the tool being provided with means for connecting it at the upper part of its body With a railwayrail, when the face of the die is in contact with the upper surface of one side of the-base of the rail; substantially as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

Patented ian.. 9, i900.
C. WIGTEL. HYDRAULIC PUNCH. (Application Vined my 19, 1899.)
2 Sheets-Sheet (No Model.)
S. rSr. S Y E w W Nn. 64|,l75. Patented lan. 9,1900. C. WIGTEL.
HYDRAULIC PUNCH.
(Application filed. May 19, 1899.)
2 Shsets-Sheet 2.
(No Mode.)
INVENTOR WITNESSES:
n1: MORRIS "Tins 06,. rno'mvumo., wAsHlNomn, u. t:4
tra Y CARL VIGTEL, OF NEW' YORK, N. Y., ASSIGNOR TO FRANCIS H. STILLMA'N, OF SAME PLACE.
HYDRAULIC PU NCH.
SPECFICATION forming part of Letters Patent 1\T o. 641,175, dated January 9, 1900.
Application filed May 19, 1899. Serial No. 717,452. (No model.)
T @ZZ wil/0172, t may concern.-
Be it known that I, CARL WIGTEL, a citizen of the United States, residing in the city of New York, borough of Brooklyn, in the 5 county of Kings and State of New York, have invented a certain new and useful Improvement in Hydraulic Punches, of which the following is a full, clear, and exact description, reference being made to the accompanying 1o drawings, forming part of this specification.
This invention relates to improvements in hydraulic punches by which holes are punched in the rails of electric railways preparatory to bonding the rails; and the object of the invention is to provide a tool by which suitable holes may be readily punched in the bases of the rails after as wellas before the rails have been permanently laid.
On the accompanying sheet of drawings,
zo Figure 1 is a partly-sectional elevation of this punching-tool and a cross-section of a T-rail and illustrates the relation of the tool to the rail when the tool is in use; Fig. 2, a plan of the tool, and Fig. 3 a cross-section of a T-rail with a bond secured thereto.
Similar reference-numerals designate like parts in the dierent views.
By means of this invention and a rivetingtool, which is described in another applica- 3o tion for a patent, a line of i`rails or girderrails may be bonded more conveniently, effectively, and durably than by the common practice, in which the bonds are secured to the webs of the rails.
The body of this punch is a steel casting composed of the short hollow cylinder 1, the head-block 2, the fixed jaw 3, and the back 4, the main part of the back being hollow and there being an opening from the hollow 40 part of the back to the top of the cylinder 1.
This cylinder is at the bottom, and the headblock 2, which is also a hollow cylinder, is at the top, of the body. The cylinder 1 is in front of the prolonged axis of the cylinder 2 and is inclined backward from the bottom to the top, its prolonged axis and that of the cylinder 2 making with each other an angle which is equal to that made by the upper surface of one side or" the base of a T-rail or girder-rail 5o with the bottom of the rail. The bottom of the cylinder 1 is closed by a` screw-plug 10 and made tight by packing 11.
In the head-block 2 is fixed the head 5, the joint being made tight by packing 50. The head contains a pump that is operated by a handle 51, of which only a fragment is shown. The interior of the head is connected with that of the cylinder 1 by a water-passage 52, shown mainly by dotted lines. The cylinder 1 contains a ram 6, and on the rain is the punch 7.
The jaw 3 projects in front of the headblock 2, back 4, and prolonged axis of the cylinder l, but only far enough beyond that axis to render the jaw capable of properly holding the die. The face of the jaw is parallel to that of the ram 6. A passage 31 extends through the jaw on the prolonged axis of the cylinder 1, and in the face of the jaw is fixed the die 8. The interior diameter of the die is greater than the diameter of the punch. The front and upper surface of the jaw is curved and slopes backward to the headblock 2 to allow the jaw to pass freely under the head of the rail and to rest supported by the die on the base of the rail, that being the position of the jaw when the tool is operated. A pair of hooks 9 holds the tool in itsI proper position on the rail, the weight of the tool being sustained by the base of the rail, on which the tool hangs by the jaw 3. These hooks are hinged to the head-block 2 and engage the rail, as represented in Fig. 1, and they confine the tool to the rail, since they overcome the force of its center of gravity, which being behind the die tends to draw the upper part of the tool backward away from the rail. A hole is dug in the ground under the rail, if necessary, to make room for the lower part of the tool.
The tool being held on the rail by the hooks 9, as described, it is to be observed that the head 5 is vertical, as it should be to secure the proper actionof the pump, and that the axis of the ram, punch, and die is inclined to a vertical plane at an angle which is equal to that made by the top of one side of the base of the rail with the bottom of the rail, and that the axis or prolonged axis of the punch is at right angles to that part of the upper roo izasurface of the base of the rail with which the die is in contact. The punch is actuated by pumping water through the passage 52 into the cylinder l, the punch being driven by the ram through the base of the rail 12. A tapering hole 13 is thus made in the base of the rail, the diameter of the hole at the bottom being the same as that of the punch and its diameter at the top being the same as that of the interior of the die. The slug flies up through the passage 31 out of thejaw 3. The ram, which is commonly held up by the friction of the punch in the hole, is pried down bya bar pushed through the opening et() from the back of the tool.
The rivets of the bonds are inserted in the holes made by this punch in the bases of the rails, all parts 'of the bonds except the stems of the rivets being underneath the rails, where they do not interfere with the fish-plates or other rail-fastenings and where they are practically safe from injury, and the bonds are secured to the rails with the riveting-tool, which crushes and spreads therivets within theholes, so that each upset rivet 14 conforms perfectly from its head upward to the shape ot' the hole and is tightly fastened therein. This not only renders secure the attachment of the bond to the rail,but it effects a superior contact between the rivet and the rail, the surfaces of contact being more than commonly large and the contact being very tight throughout the whole extent of those surfaces. The upper end of the rivet is depressed slightly below the top of the base of the rail to prevent the rivet from being subjected to any pressure or blow which might tend to loosen it.
' Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l.v A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a fixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; a die in the face of the jaw; a pump; and a water-passage extending from the pump to the cylinder containing the ram; the tool having its center of gravity behind the die, when the face of the die is in contact with the top ot' the base of a rail of a railway, and the tool being provided with means for connecting it at a point or points above its center of gravity with the rail; substantially as described.
2. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head outhe upper part of the body a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch, the jaw containing a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool having its center of gravity behind the die, when the face of the die is in contact with the top of the base of a rail, of a railway,
and the tool being provided with means for connecting it at a point or points above its center of gravity with the rail; substantially as described.
3. A hydraulic rail-punching tool comprising the combinationof: a ram in the lower part ofthe body; a punch on the ram; a ixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; a die in the face of the jaw; a pump; and a water-passage extending from the pump to the cylinder containing the ram; the tool having its center of gravity behind the die, when the face of the die is in contact with the topof the base of a rail of a railway, and the tool being provided with a hook or hooks hinged to the upper part of the body and properly fashioned to engage the head of the rail; substantially as described.
4E. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch, the jaw having a sl ug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face of the die in contact with the upper surface of one side of the base of the rail; substantially as described.
5. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram; a water-passage extending from the head to the cylinder containing the rain; axed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; substantially as described.
6. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face ot the die in contact with the upper surface of one side of the base of the rail; substantially as described.
7. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind IOO ICS
IIO
the axis of the ram, and the axis of the ram' being inclined to that of the head from the bottom of the raln upward at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom or" the rail; a water-passage extending from the head to the cylinder containing the ram; a iixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; substantially as described.
8. A hydraulic rail-punching tool comprising the combination of: a ram in the lower part of the body; a punch on the ram; a head on the upper part of the body, the prolonged axis of the head below the head being behind the axis of the ram, and the axis of the ram being inclined to that of the head from the bottom of the ram upward at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom of the rail; a water-passage extending from the head to the cylinder containing the ram; a fixed jaw projecting over the punch and in front of the head, the jaw having a slug-passage extending through it on the prolonged 'axis of the ram; and a die in the face of the jaw; the tool being provided with means for securing it to a railway-rail, with the face of the die in contact with the upper surface of one side of the base of the rail; substantially as described.
9. Ahydraulic rail-punching tool comprising the combination of: a ram in the lower part ofthe body; a punch on the ram; a head on the upper part ofthe body; a water-passage extending from the head to the cylinder containing the ram; a iixed jaw projecting over the punch, the jaw having a slug-passage extending through it on the prolonged axis of the ram; and a die in the face of the jaw; lthe tool being provided with a hook or hooks hinged to the upper part of the body and properly fashioned to engage the head of a railway-rail, when the face of the die is in contact with the upper surface of one side of the base of the rail; substantially as described.
10. A hydraulic railpunching tool having its body composed of the cylinders 1 and 2, the fixed jaw 3, and the back 4, the axis of the cylinder l being inclined to that of the cylinder 2 at an angle equal to that made by the top of one side of the base of a railway-rail with the bottom of the rail, and the jaw 3 projecting in front of the prolonged axis of the cylinder 1 and having a slug-passage extending through it on that axis, and the tool comprising the combination of a ram in the cylinder l; a punch on the ram; a head with its lower end in the cylinder 2; a water-passage extending from the head to the cylinder l; and a die in the face of the jaw 3; the tool being provided with means for connecting it at the upper part of its body With a railwayrail, when the face of the die is in contact with the upper surface of one side of the-base of the rail; substantially as described.
CARL VVIGTEL.
In presence of- DAvID E. GRAHAM, EDWARD R. M. VANNETT.
US71745299A 1899-05-19 1899-05-19 Hydraulic punch. Expired - Lifetime US641175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US71745299A US641175A (en) 1899-05-19 1899-05-19 Hydraulic punch.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71745299A US641175A (en) 1899-05-19 1899-05-19 Hydraulic punch.

Publications (1)

Publication Number Publication Date
US641175A true US641175A (en) 1900-01-09

Family

ID=2709758

Family Applications (1)

Application Number Title Priority Date Filing Date
US71745299A Expired - Lifetime US641175A (en) 1899-05-19 1899-05-19 Hydraulic punch.

Country Status (1)

Country Link
US (1) US641175A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380160A (en) * 1965-10-23 1968-04-30 Globe Union Inc Piercing punch device
US4088048A (en) * 1975-11-03 1978-05-09 Hans Olssons Mekaniska Verkstad Ab Method and device for holing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380160A (en) * 1965-10-23 1968-04-30 Globe Union Inc Piercing punch device
US4088048A (en) * 1975-11-03 1978-05-09 Hans Olssons Mekaniska Verkstad Ab Method and device for holing

Similar Documents

Publication Publication Date Title
US661677A (en) Support or holder for wheels or light vehicles.
US641175A (en) Hydraulic punch.
US749760A (en) Pipe or rod holder
US761282A (en) Clamp.
US565425A (en) donlevy
US2807220A (en) Car stop
US845724A (en) Lewis.
US728096A (en) Bolt or spike puller.
US494417A (en) Implement for dismantling builderss stagings
US852138A (en) Pipe-lifter.
US698842A (en) Cable-grip.
US1285561A (en) Spike-puller.
US751195A (en) James w
US91837A (en) Improved pushing-jack
US842185A (en) Spike-puller.
US641163A (en) Hydraulic punch.
US498325A (en) Cable-railway gripper
US1111896A (en) Plow-scraper-setting tool.
US1297453A (en) Tie lifter and holder.
US641162A (en) Hydraulic riveting-tool.
US1068671A (en) Rivet-holding device.
US1124806A (en) Tie-tongs.
US1077722A (en) Punching-tool.
US951517A (en) Spike-puller.
US522362A (en) Suspension-clip for trolley-wires