US2257223A

US2257223A - Rammer, especially for road making

Info

Publication number: US2257223A
Application number: US283232A
Authority: US
Inventors: Borgmann Johann
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-07-05
Filing date: 1939-07-07
Publication date: 1941-09-30
Anticipated expiration: 1958-09-30

Description

Sept. 30, 1941- J. BORGMANN RAMMER, ESPECIALLY FOR ROAD MAKING Filed July 7, 1959 3 6 W 4. .h a p MW Jr 6 3 e P I I 4 4 a E E w 2 5 M 0 4 1 MWIIIIIHHVIIlII l fiunuu\ 4 V HIIIPHHHHHHIIIIIGIIIIIIIIM m ul l fidn w I 1-- ii. I.

A. A/Ibrney Patented Sept. 30, 1941 RAIVIMER, ESPECIALLY FOR ROAD MAKING Johann Borgmann, Duisburg-Hamborn, Germany Application July '7, 1939, Serial No. 283,232 In Germany July 5, 1938 3 Claims.

When making bituminous road coverings, the portions which cannot be reached by the road roller and also the raised portions remaining between the tracks of the roller are rammed by means of an instrument called a hand rammer. However, the material of the road covering has a tendency to stick to the ramming tool which consequently has to be repeatedly cleaned with the result that the ramming work is continually interrupted.

According to the invention the sticking of the road material is substantially prevented by constructing the tamper head in the shape of a three-sided prism with longitudinal edges extending perpendicularly to the post of the rammer, which tool can be turned about its longitudinal axle on the rammer post formed by two channel bars and is fixable hereon from the handle of the rammer, whereas a spraying device controllable from the handle of the rammer is arranged above the tamper head and can be set in operation when required. This spraying device consists of a container for the liquid to be sprayed said container arranged between the channel bars of the rammer post and of a spraying tube connected to the container by a valve and extending parallel to the longitudinal edges of the tamper head, the valve adapted to be controlled by a rod extending to the handle of the rammer and supported thereon by a spring. The device for holding the tamper head in its position consists of two rods guided on the channel bars and each having at its lower end an inwardly bent fork engaging over the tool, the upper ends of these two rods having, below the handle of the rammer, outwardly bent portions forming handles by which they can be pulled upwards against the action of a spring.

The rammer according to the invention allows uninterrupted work because the sticking of the road making material cannot exert detrimental effect as the tamper head can be turned and the sticky mass can be removed in a simple manner during work by means of the spraying device.

An embodiment of the invention is illustrated by way of example in the accompanying drawing, in which Fig. 1 shows the rammer in front elevation,

Fig. 2 is a side elevation of Fig. 1 in which some of the parts at the lower end of the post are cut away to show the forked construction of the locking rods.

Fig. 3 is a cross-sectional view taken on line 3-3 of Fig. 2.

According to the invention the tamper head I is in the form of a three-sided prism the longitudinal edge of which extends perpendicularly to the rammer post. This prismatic tool I can be turned about its longitudinal axle 3 fixed in two channel bars '2. This tool I can be secured in position from the handle 6 of the rammer. A spraying device is arranged between the U-section bars 2 above the tamper head I and consists of a container 4 for the liquid to be sprayed and of a spraying tube 5 connected to the container t by a valve 8 and extending parallel to the longitudinal edges of the tamper head I. The valve 8 fitted in the bottom I of the container i is controllable by means of a rod 9 extending to the handle 8 of the rammer and supported thereon by a spring ll, so that by exerting pressure on the knob IE] on the upper end of rod 9 the liquid fiows out of the container 4 into the spraying tube 5 and is sprayed on to the tamper head I through holes H2 in this tube. The container 4 is filled through a closable aperture 53 at the top of the container, whereas the valve 8 can be inspected and renewed through a closable aperture [4 in the spraying tube 5. As shown by dotted lines in Fig. l, the upper ends of the channel bars 2 are bent outwardly for attachment to the rammer handles 6 carried by the upper end of the container 4. The device for holding the tamper head I consists of two rods l5 extending along the channel bars 2, these rods each having an inwardly bent fork l6 engaging the ramming tool through an aperture I! in the correspond-' ing channel bars 2, whereas the upper ends have each an outwardly bent portion forming a handle i8 by means of which the rods can be raised against the action of springs l9, when the tamper head has to be turned about its axle.

I claim:

1. A rammer especially for road making, comprising in combination a post formed of two channel bars, an axle mounted in the lower end of said bars, a tamper head mounted on said axle so that it can be turned about it and having the form of a three-sided prism with its longitudinal edge extending perpendicularly to said post, a handle on the upper end of said post, means operable from said handle for holding said tamper head, a spraying device mounted on said post above said tamper head, and means for operating said spraying device from said handle.

2. In a rammer as specified in claim 1, the spraying device comprising in combination a container for the liquid to be sprayed mounted between the channel bars, a spraying tube leading from said container and extending parallel to the longitudinal edges of the tamper head, and a valve in said tube, and. the means for operating the spring device comprising a rod between said valve and the handle for controlling said 'valve, and a spring supporting said rod on said handle. 7

3. In a rammer as specified in claim 1, the means for holding the tamper head comprising in combination two rods guided one on each of said channel bars, inwardly bent forks one on the lower end of each rod and engaging the opposite sides of the tamper head, two handles formed by outwardly bentportions one on the upper end of each of said rods below the handle of the rammer, and adapted to lift said forks out of engagement with said tool, and two springs, one on each of said rods adapted to press said J OHANN BORGMANN.