GB1337095A - Internal combustion rammer - Google Patents

Internal combustion rammer

Info

Publication number
GB1337095A
GB1337095A GB929572A GB929572A GB1337095A GB 1337095 A GB1337095 A GB 1337095A GB 929572 A GB929572 A GB 929572A GB 929572 A GB929572 A GB 929572A GB 1337095 A GB1337095 A GB 1337095A
Authority
GB
United Kingdom
Prior art keywords
rammer
piezo
electric element
delmag
sleeves
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
Application number
GB929572A
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.)
DELMAG VERWALTUNGSGESELLSCHAFT
Original Assignee
DELMAG VERWALTUNGSGESELLSCHAFT
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
Priority claimed from DE19722203559 external-priority patent/DE2203559C3/en
Application filed by DELMAG VERWALTUNGSGESELLSCHAFT filed Critical DELMAG VERWALTUNGSGESELLSCHAFT
Publication of GB1337095A publication Critical patent/GB1337095A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/36—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight with direct-acting explosion chambers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/061—Tampers with directly acting explosion chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Architecture (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

1337095 Ignition system for I. C. rammer DELMAG-VERWALTUNGS GmbH [trading as DELMAG-MASCHINENFABRIK REINHOLD DORNFELD] 29 Feb 1972 [9 March 1971 26 Jan 1972] 9295/72 Heading F1B [Also in Division B4] An internal combustion rammer has an ignition system including a Piezo-electric element 58 actuatable by pressure between members 34 and 72. Raising handle 28 containing the Piezoelectric element brings striker pin 55 into contact with the member 34, causing an electrical pulse to pass from the element via cable 76 to a sparking plug (not shown) in the rammer. The circuit is completed by member 72, sleeves 52 and 30 and arm 24 which are of metal. The sleeves 32 and 50, body 64 and guide bushing 51 are plastics. Guide bushing 51, striker pin 55 and spring 57 may be omitted, Fig 2 (not shown). The Piezo-electric element may be located in a bracket (200) Figs.4 and 6 (not shown) rigid with the rammer or in a sleeve (104) on a lever (100) pivoted to the rammer, Fig. 3 (not shown). The rammer, shown in Fig. 1 comprises a holding stirrup 10 above a tank 12 above cylinder head 14. A piston is reciprocable within unit 18 and is attached to a ram plate 20. The handle 28, which contains the Piezo-electric element, may extend vertically downwardly or upwardly or obliquely downwardly, Figs. 1a and 1b (not shown).
GB929572A 1971-03-09 1972-02-29 Internal combustion rammer Expired GB1337095A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7108736 1971-03-09
DE19722203559 DE2203559C3 (en) 1972-01-26 Piezoelectric ignition device for a hand-operated internal combustion ram

Publications (1)

Publication Number Publication Date
GB1337095A true GB1337095A (en) 1973-11-14

Family

ID=25762618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB929572A Expired GB1337095A (en) 1971-03-09 1972-02-29 Internal combustion rammer

Country Status (2)

Country Link
FR (1) FR2128694B1 (en)
GB (1) GB1337095A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1104824A1 (en) * 1999-12-01 2001-06-06 Svedala Compaction Equipment AB Vibrating tamper with single control lever

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959159A (en) * 1958-05-16 1960-11-08 Battelle Development Corp Free-piston internal combustion apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1104824A1 (en) * 1999-12-01 2001-06-06 Svedala Compaction Equipment AB Vibrating tamper with single control lever

Also Published As

Publication number Publication date
FR2128694A1 (en) 1972-10-20
FR2128694B1 (en) 1974-08-02

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees